The world might run out of a crucial ingredient of touch screens. But don’t worry, we’ve invented an alternative

Timothy Muza/Unsplash, CC BY-SA

Behnam Akhavan, University of SydneyHave you ever imagined your smart phone or tablet without a touch screen? This could soon be the case if we run out of indium, one of the rarest minerals on Earth.

Indium is used in many high-tech devices such as touch screens, smart phones, solar panels and smart windows, in the form of indium tin oxide. This compound is optically transparent and electrically conductive — the two crucial features required for touch screens to work.

But there’s a problem: we have no guaranteed long-term supply of indium. It is naturally found only in tiny traces, and is therefore impractical to mine directly. Almost all of the world’s indium comes as a byproduct of zinc mining.

Fortunately, we have a potential solution: my colleagues and I have developed a new way to make optically transparent and electrically conductive coatings without indium.

A worsening problem

Because the world’s indium supply is tied to zinc mining, its availability and price will depend on the demand for zinc.

Possible declines in zinc demand — already evident in the car manufacturing industry — along with the ever-increasing usage of smart phones and touch panels — are set to exacerbate the potential shortage of indium in the future.

One option is to try and recycle indium. But recovering it from used devices is expensive because of the tiny amounts involved.

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Read more:
Touch screens: why a new transparent conducting material is sorely needed

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When a crucial material is in short supply, we should look for alternatives. And that’s exactly what my colleagues and I have found.

How does it work?

Our new coating, details of which are published in the journal Solar Energy Materials and Solar Cells, involves plasma technology.

Plasma is like a soup of charged particles in which electrons have been ripped away from their atoms, and is often described as the fourth state of matter, after solid, liquid and gas. It might sound like an exotic substance, but in fact it comprises more than 99% of the visible objects in the universe. Our Sun, like most stars, is essentially a giant ball of glowing plasma.

Closer to home, fluorescent lightbulbs and neon signs also contain plasma. Our new touchscreen films don’t contain plasma, but their manufacture uses plasma as a way to create new materials that would otherwise be impossible to make.

The new material is created using a process called plasma sputtering.
Behnam Akhavan

Our coating is made of an ultra-thin layer of silver, sandwiched between two layers of tungsten oxide. This structure is less than 100 nanometres thick — roughly one-thousandth of the width of a human hair.

These ultra-thin sandwich layers are created and coated onto glass using a process called “plasma sputtering”. This involves subjecting a mixture of argon and oxygen gases to a strong electric field, until this mixture transforms into the plasma state. The plasma is used to bombard a tungsten solid target, detaching atoms from it and depositing them as a super-thin layer onto the glass surface.

We then repeat this process using silver, and then a final third time tungsten oxide embedded with silver nanoparticles. The entire process takes only a few minutes, produces minimal waste, is cheaper than using indium, and can be used for any glass surface such as a phone screen or window.

The finished result is a sandwich of tungsten oxide and silver, coated onto glass.
Behnam Akhavan, Author provided

The finished plasma coating also has another intriguing feature: it is electrochromic, meaning it can become more or less opaque, or change colour, if an electrical voltage is applied.

This means it could be used to create super-thin “printable displays” that can become dimmer or brighter, or change colour as desired. They would be flexible and use little power, meaning they could be used for a range of purposes including smart labels or smart windows.

The material’s opacity can be changed by varying the voltage.
Behnam Akhavan, Author provided

Smart windows coated with our new films could be used to block the flow of light and thus heat as required. Our plasma film can be applied to any glass surface, which can then be set to adjust its transparency depending on the weather outside. Unlike existing “photochromic” spectacle lenses, which respond to ambient light levels, our material responds to electrical signals, meaning it can be manipulated at will.

Our new indium-free technology holds great potential to manufacture the next-generation touch-screen devices such as smart phones or electronic papers, as well as smart windows and solar cells for environmental sustainability. This technology is ready to be scaled up for creating coatings on commercial glass, and we are now doing further research and development to adapt them for future wearable electronic devices.

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Read more:
From cobalt to tungsten: how electric cars and smartphones are sparking a new kind of gold rush

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Behnam Akhavan, Senior Lecturer, ARC DECRA Fellow, School of Biomedical Engineering and School of Physics, Sydney Nano Institute, University of Sydney

This article is republished from The Conversation under a Creative Commons license. Read the original article.

Christians Decry Malaysia’s Detention of Bible Books

After stopping 5,100 Bibles in 2009, authorities withhold 30,000 Malay-language copies.

KUALA LUMPUR, Malaysia, March 14 (CDN) — The detaining of 30,000 copies of the New Testament, Psalms and Proverbs in the Malay language at Malaysia’s Kuching Port has “greatly disillusioned” the nation’s Christian community.

The books, imported from Indonesia by the local branch of Gideons International for distribution in schools, churches and longhouses in Betong, Saratok and other Christian areas in Sarawak state, have been detained at the Kuching Port since January.

Authorities told an unnamed officer of the importer on Jan. 12 that he could not distribute the books in Sarawak state, on the island of Borneo, since they “contained words which are also found in the Quran,” according to online news agency Malaysiakini. The officer was ordered to transport the books to the Home Ministry’s office for storage.

Last week, when the same officer enquired of the Home Ministry officials on the status of the Malay Bibles, authorities said they had yet to receive instructions on the matter.

This is not the first time government authorities have detained Malay-language Bibles, and Bishop Ng Moon Hing, chairman of Christian Federation of Malaysia, decried the action.

“The CFM is greatly disillusioned, fed-up and angered by the repeated detention of Bibles written in our national language,” Ng said. “It would appear as if the authorities are waging a continuous, surreptitious and systematic program against Christians in Malaysia to deny them access to the Bible in [Malay].”

An earlier consignment of 5,100 copies of the Good News Bible in Malay, imported by the Bible Society of Malaysia, was detained in Port Klang in March 2009. Together with this latest seizure, the total number of Bibles seized and remaining in possession of the Home Ministry amounts to 35,100 copies.

The CFM, representing a majority of Christians in Malaysia, released a statement on March 10 asserting, “All attempts to import the Bible in Bahasa Malaysia [Malay], i.e. the Alkitab, whether through Port Klang or the Port of Kuching, have been thwarted” since March 2009.

Prior to March 2009, there had been several such incidents, and “each time, tedious steps had to be taken to secure their release,” according to the CFM.

A significant 64 percent of Malaysian Christians are indigenous people from Sabah and Sarawak states who use the Malay language in their daily life. Christian leaders say having Bibles in the Malay language is crucial to the practice of their Christian faith.

Christians make up more than 9 percent of Malaysia’s nearly 28 million people, according to Operation World.

This latest Bible book seizure has irked Christians and drawn criticisms from politicians spanning both sides of the political divide.

The Sarawak Ministers Fellowship issued a statement registering its “strong protest,” describing the detention of the books as “unconstitutional” and in violation of the 18-point agreement for Sarawak in the formation of Malaysia.

Representing the opposition political party, People’s Justice Party (Sarawak Parti Keadilan Rakyat) Chief Baru Bian described the withholding as “religious harassment” and “a blatant disregard of our constitutional right as Christians in Malaysia.”

Chua Soi Lek, president of the Malaysian Chinese Association, a political party within the ruling coalition National Front, proposed that Malay Bibles be allowed to be printed locally. The deputy chief minister of Sarawak, Dr. George Chan, expressed the state government’s willingness to publish the Malay Bible locally.

Home Minister Hishammuddin Hussein was quoted in The Star newspaper today as saying, “The issue … is being resolved amicably with the parties concerned,” though how this was taking place was not apparent. The home minister has reportedly said the books had been withheld pending an appeal over the use of the word “Allah” in The Herald catholic newspaper.

Secretary-General of Malaysian Muslim Youth Movement Mohamad Raimi Abdul Rahim has called for the government to enforce the ban on use of the word “Allah” by non-Muslims nationwide, including in Sabah and Sarawak.

In a controversial court ruling on Dec. 31, 2009, Judge Lau Bee Lan had allowed The Herald to use the word “Allah” for God in the Malay section of its multilingual newspaper. The Home Ministry filed an appeal against the decision on Jan. 4, 2010, but to date there is no indication as to when the case will be heard.

Report from Compass Direct News

Push for Islamic Courts in Kenya Alarms Christians

Emergence of Somali-related Islamic extremists puts authorities on high alert.

NAIROBI, Kenya, February 11 (CDN) — A constitutional battle to expand the scope of Islamic courts in Kenya threatens to ignite religious tensions at a time when authorities are on high alert against Muslim extremists with ties to Somalia.

Constitutional provisions for Islamic or Kadhis’ courts have existed in Kenya since 1963, with the courts serving the country’s coastal Muslim population in matters of personal status, marriage, divorce, or inheritance. Kenya’s secular High Court has jurisdiction over civil and criminal matters, and even a decision in the Islamic courts can be appealed at the High Court.

The Islamic courts have functioned only in Kenya’s Coast Province, but in a hotly debated draft constitution, their jurisdiction would expand across the nation and their scope would increase. The proposed constitution has gathered enough momentum that 23 leaders of churches and Christian organizations released a statement on Feb. 1 asserting their opposition to any inclusion of such religious courts.

“It is clear that the Muslim community is basically carving for itself an Islamic state within a state,” the Kenyan church leaders stated. “This is a state with its own sharia [Islamic law]- compliant banking system; its own sharia-compliant insurance; its own Halaal [lawful in Islam] bureau of standards; and it is now pressing for its own judicial system.”

Muslim leaders are striving to expand the scope of Islamic courts to include civil and small claims cases. They also want to upgrade the Muslim tribunals to High Court status. These demands have alarmed Christians, who make up 80 percent of the population and defeated a similar proposal in a 2005 referendum. Muslims make up 10 percent of Kenya’s 39 million people, 9 percent of the population follows indigenous religions and less than 1 percent are Hindu, Sikh and Baha’i.

The National Council of Churches of Kenya (NCCK) said the Committee of Experts (CoE) responsible for “harmonizing” drafts from various stakeholders ignored their concerns. The committee was responsible for determining what matters would be unduly “contentious” and was charged with keeping them out of the draft.

“We wrote to them, but we have been ignored,” said the Rev. Canon Peter Karanja, NCCK general secretary. “Who told the CoE that Kadhis’ courts were not contentious?”

Saying the committee ignored the crucial requirement of omitting what is “contentious,” Karanja said it did little to build consensus. He said that unless the Islamic courts are stricken from the constitution, Christians might be forced to reject the document in a national referendum later this year.

Muslim leaders, just as stridently, insist that recognition of the Islamic courts does not elevate Islam over other religions, and that if the courts are removed they will shoot down the draft in the referendum.

The 2005 referendum split the country and was followed by a bitterly disputed presidential election in 2007 that sparked rioting, reportedly leaving 1,300 people dead. The election dispute was resolved with one candidate becoming president and the other prime minister, and at the heart of the proposed constitution is an attempt to transfer presidential powers to the prime minister.

Christian leaders point out that the “Harmonized Draft” of the constitution discriminates against non-Muslims and contradicts its own Article 10 (1-3), which states that there shall be no state religion, that the state shall treat all religions equally and that state and religion shall be separate. They see the attempt to expand the scope of the Islamic courts as part of a long-term effort by Muslims to gain political, economic and judicial power.

Muslim leaders claim that inclusion of the Islamic courts in the new constitution would recognize “a basic religious right” for a minority group. Some Muslim extremists have said that if Islamic courts are removed from the draft constitution, they will demand their own state and introduce sharia.

Extremists Emerge

The constitutional issue erupted as security officials went on high alert when sympathizers of the Islamic terrorist al Shabaab militia appeared in a protest in mid-January to demand the release of radical Muslim cleric Abdullah Al-Faisal, who had entered the country on Dec. 31.

Al-Faisal, imprisoned from 2004 to 2008 after a British court convicted him of soliciting murder and inciting hatred, is on a global terrorism list. Government spokesman Alfred Mutua said Al-Faisal has been known to recruit suicide bombers and was arrested for violating terms of his tourist visa by preaching. He was reportedly deported to his native Jamaica on Jan. 21.

Eyewitnesses to the protests in Nairobi told Compass one demonstrator clad in fatigues, with his face masked by a balaclava, waved the black flag of the al-Qaeda-linked al Shabaab militia and passed his finger across his throat in a slitting gesture, taunting passersby.

Officials from the Council of Imams and Preachers of Kenya and from Muslims for Human Rights defended the demonstrations as legitimate to condemn violation of Al-Faisal’s rights. At least one person died as the protests turned violent, and Internal Security Minister George Saitoti said five civilians and six police officers were injured, with one security officer wounded from a bullet said to be shot by a demonstrator.

Al Shabaab-affiliated operatives appear to have targeted Christians in Kenya, according to an Internet threat in December by a group claiming to align itself with the Islamic extremist militia seeking to topple Somalia’s Transitional Federal Government. In an e-mail message with “Fatwa for you Infidels” in the subject line to Christian and governmental leaders in Kenya, a group calling itself the Harakatul-Al-Shabaab-al Mujahidin threatened to kill Muslim converts to Christianity and those who help them.

“We are proud to be an Islamic revolutionary group, and we are honored to be affiliated with Al Qaeda, a group of honest Muslims in which we share long-term goals and the broad outlines of our ideologies, while focusing on our efforts on attacking secular and moderate governments in the Muslim world, America and Western targets of opportunity and of course Uganda, Ethiopia, Burundi and Kenya if they do not stop their assistance to the Somali fragile and apostate government,” the group wrote in the e-mail. “Although we receive support for some of our operations, we function independently and generally depend on ourselves…”

The group threatened to shake the Kenyan government “in minutes,” calling it the “the most fragile target in the world.”

The emergence of al Shabaab and its sympathizers in Kenya coincides with the swelling of the Somali population in the country to 2.4 million, according to the August 2009 census.

Report from Compass Direct News 

Turkish Court Seeks to Link Murder of Christians to ‘Cage Plan’

Scheme to destabilize pro-Islamic government believed to be part of Ergenekon conspiracy.

ISTANBUL, December 29 (CDN) — Malatya’s Third Criminal Court on Friday (Dec. 25) took further steps to connect the murders of three Christians in southeastern Turkey to a Turkish military plan to destabilize the pro-Islamic government.

Evidence surfaced in Turkish press last month linking the murders of the three Christians in the southeastern city of Malatya with army activities to overthrow the government in a special operation called the “Operation Cage Action Plan.” The Malatya prosecutor and plaintiffs on Friday requested that the Istanbul prosecutor further probe links between the Malatya case and the Cage Plan, which included an elaborate scheme to attack Muslim-majority Turkey’s religious minorities.

They also requested that the Malatya court open to plaintiffs the currently “classified” prosecutor’s investigation into links between the Malatya murders and an alleged operation by the military and other political figures to destabilize the government known as Ergenekon.

Evidence of the Cage Plan, believed to be part of Ergenekon, centers on a compact disc found in April in the house of a retired naval officer; it was decrypted and leaked to the press last month. The plan, to be carried out by 41 named naval officers and dated March 2009, termed as “operations” the murders of the three Christians in Malatya, the 2006 assassination of Catholic priest Andreas Santoro and the 2007 slaying of Hrant Dink, Armenian editor-in-chief of the weekly Agos.

“This Cage Plan starts with a reference to the Malatya, Dink and Santoro cases and mentions them as previous ‘operations,’” said one of the plaintiff lawyers, Orhan Kemal Cengiz, adding that a connection of the murders with the Cage Plan would be difficult for any court to ignore.

Hearings for Ergenekon are ongoing in Istanbul. Istanbul prosecutors handling the Ergenekon case sent a response to the Malatya court this month in which they reported they have not been able to find a direct connection with the Malatya murders yet. The Malatya court is waiting for further investigations into possible connections with Ergenekon.

Cengiz said that although investigations are moving slowly, he is pleased with the willingness of the Malatya prosecutor to cooperate and find who is behind the murders.

“I see a good will on the part of the prosecutor,” said Cengiz. “He’s really trying to discover the possible links, and I’m glad to see his effort, and he was helpful and supportive to us. It was important.”

Turkish Christians, Necati Aydin and Ugur Yuksel and German Christian Tilmann Geske were tortured and stabbed to death in Malatya on April 18, 2007 at Zirve Publishing Co., which distributed Bibles and literature in the area.

Suspects Emre Gunaydin, Salih Gürler, Cuma Ozdemir, Hamit Ceker and Abuzer Yildirim, who were caught at the crime scene, are still held in prison in Malatya. Two other suspects, journalist Varol Bulent Aral and Huseyin Yelki, a former volunteer at Zirve, are not under arrest, but the court expects them to attend all hearings.

Aral and Yelki are believed to have crucial links with the alleged masterminds of the murder plot.

The next trial is set for Feb. 19, 2010.

Report from Compass Direct News 

PAKISTAN: CHRISTIAN AT CHURCH OF BELEAGUERED PASTOR ARRESTED

Young parishioner illegally detained, beaten with wooden rods.

ISTANBUL, October 17 (Compass Direct News) – In ongoing intimidation of a Pakistani pastor working in the outskirts of Lahore, police last week arrested and beat a young parishioner who was visiting his home to receive prayer.

Police on Oct. 9 arrested Javed Masih, a 22-year-old delivery driver and prominent member of pastor Christopher Manzer’s congregation, as he was leaving Manzer’s house. The pastor had already fled after receiving a telephone call warning him of imminent police arrival.

Police attacked Manzer five times between April and July, and the pastor of the Pentecostal Church of Jesus Disciples has recently received death threats.

As Masih was leaving Manzer’s home, police approached him, asked if he was Pastor Christopher and arrested him. Manzer searched for Masih in local police stations without success.

On Sunday (Oct. 12) Masih’s family learned that he had been taken to the Crime Investigation Agency (CIA) police station in Ichhra, central Lahore. Authorities held Masih there for three days, kept in a small room with 32 other men and beaten, before allowing him to make a phone call.

“They beat me with wooden rods,” Masih told Compass through a translator.

Police held Masih until 11 p.m. Tuesday (Oct. 14). According to human rights group Sharing Life Ministry Pakistan (SLMP) staff, Masih was held illegally and without any official record. He was released after his family and Manzer paid a bribe of 15,000 rupees (US$185). Masih plans to post pre-arrest bail, in the hopes that this will avert future arrests.

The pastor and staff at SLMP believe the man instigating the attacks is Mohammad Nawaz, who opened a court case against Manzer, Masih and seven others, accusing them of kidnapping his wife, Sana Bibi.

Bibi and Nawaz converted to Islam and eloped last year believing Islam could shield and support their union, as their families did not approve of their marriage. Sources said, however, that Bibi filed for divorce and returned to her family, after Nawaz’s ties with devout Muslims led to disagreements.

Manzer counseled Bibi after she decided to return to her family and Christianity, and according to sources Nawaz blames him for the divorce in March and a botched abortion that led to her death in May. Manzer has denied all of the accusations.

 

Continued Defamation

There are numerous charges pending against Manzer and members of his congregation based on accusations allegedly fabricated and filed by Nawaz’s friends.

Should these “applications” become official First Information Reports, they would each require pre-arrest bail payments from those indicted.

Both Manzer and Shahzad Kamran of the SLMP have expressed concerns of police corruption, maintaining police make arrests in order to collect release bribes. According to Peter Jacob, a lawyer with the National Commission for Justice and Peace, these issues are surmountable.

“There is a problem of corruption and influence on police, a degree of malpractice,” said Jacob. “On the whole if the allegations are false… there is the possibility of redress if corruption has taken place.”

Kamran told Compass he believes Manzer would benefit from appearing before the Deputy Inspector General (DIG), who has authority over all local police stations, to explain to him the entire episode.

“He could then take action and issue a summary report to all the police stations informing them the pastor is innocent, so all the applications could be cancelled,” said Kamran.

Kamran and Manzer said they plan to bring their case to the DIG within the next week.

Despite these difficulties, Manzer remains hopeful, believing that the case will be settled in his favor. The court has now authenticated the Bibi-Nawaz divorce documents to be used as evidence that Bibi was not kidnapped, according to the SLMP. This is a crucial step in the defense of Manzer, Masih and the seven others.  

Report from Compass Direct News

IRAN: ‘APOSTASY’ BILL APPEARS LIKELY TO BECOME LAW

International pressure sought against mandatory death penalty for ‘apostates.’

LOS ANGELES, September 23 (Compass Direct News) – Without international pressure there is little to stop the Iranian government from ratifying a bill that will make “apostasy,” or leaving Islam, a capital crime, say human rights groups and experts.

On Sept. 9 the Iranian parliament approved a new penal code by a vote of 196-7 calling for a mandatory death sentence for apostates, or those who leave Islam. The Christian and Baha’i communities of Iran are most likely to be affected by this decision.

“Unless there is a coordinated and very strong effort from the international community to place pressure on Iran for this, I don’t think there will be anything stopping the Iranian government from passing this legislation,” Joseph Grieboski, founder of the Institute on Religion and Public Policy, told Compass.

The bill still has to make its way through Iran’s policy-making process before it becomes law. Parliament is reviewing it article by article, after which it will be sent to Iran’s most influential body, the Guardian Council, which will rule on it.

The council is made up of six conservative theologians appointed by Iran’s Supreme Leader and six jurists nominated by the judiciary and approved by parliament. This body has the power to veto any bill it deems inconsistent with the constitution and Islamic law.

In the case of the new penal code, however, which appears to be a return to a strict adherence of sharia (Islamic law), sources said they do not expect the Guardian Council to reject the penal code.

The timing of the debate on the penal code is not coincidental, said Grieboski. While the international community is focused on Iran’s nuclear activities, he said, the Iranian government appears to be taunting the West with deliberate human rights violations.

“Because of the nuclear issues, ones like these get put on the backburner, which means that the regime can move with great liberty to install legislation like this with impunity, because the nuclear issue gives them cover,” said Grieboski.

Iran has been criticized for its treatment of Baha’is, Zoroastrians and Christians, who have all suffered under the current regime.

“The Baha’is and the Christians are the ones being used as pawns by the regime in its dance with the West,” said Grieboski. “Iran is a human rights black hole in the middle of the world.”

A source told Compass that when he discussed the apostasy article in the penal code with some of the reformists in Iran’s parliament, they responded by saying they were not aware of the apostasy bill. The source argued that the Iranian government was trying to bury the apostasy article in the 113-page penal code.

“I am not sure there is an adequate means of underscoring how serious this law is in terms of violation of international law and a violation of the fundamental freedom of religion or belief,” said Kit Bigelow of the National Spiritual Assembly of the Baha’is of the United States.

She urged people to write their representatives in their respective governments.

International pressure is crucial if the apostasy bill is to be countered, agreed a Christian source. He recalled how in 2005 Christian convert Hamid Pourmand was acquitted of apostasy as a direct result of international pressure.

“I don’t know who you are, but apparently the rest of the world does,” the presiding judge had told Pourmand, according to media sources. “You must be an important person, because many people from government have called me, saying to cancel your case.”

The news of parliament approving the bill comes on the heels of two Christians being officially charged with apostasy this summer. Mahmood Matin Azad, 52, and Arash Basirat, 44, have been in prison since May 15 and now await their court date.

Although their future and that of other non-Muslims looks grim, some believe this bill is the act of a government desperately trying to hang onto power.

“I have to say the Iranian regime is tightening severely its control over as many aspects of the lives of Iranian people as they possibly can,” said Grieboski. “And that, I think, is the sign of a weakening regime.”

The original penal code was passed into law in 1991 and last amended in 1996.

Report from Compass Direct News