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Primeur weekly 2018-07-09

Focus on Europe

HPE Helps EPFL Blue Brain project unlock the secrets of the brain ...

NVIDIA and Luxembourg Government Announce Cooperation on Artificial Intelligence and High Performance Computing  ...

Hardware

Green Revolution Cooling Now Doing Business as GRC ...

Samsung Foundry and Arm expand collaboration to drive HPC Solutions ...

Huawei AI Fabric Ultra-High-Speed Ethernet Solution Passes EANTC's High-Performance Data Center Test ...

Princeton Research Computing introduces the University's newest TIGER supercomputer ...

Newcastle's new supercomputer - called Rocket - installed ...

Applications

NNSA awards $10 million center grant to Texas A&M-led consortium ...

Stem cell therapy drug may protect against smoke-related COPD symptoms ...

Atos launches the most comprehensive AI software suite available on the market to simplify and accelerate adoption ...

High performance nitride semiconductor for environmentally friendly photovoltaics ...

Berkeley Lab Team Wins Data-Driven Scavenger Hunt for Simulated Nuclear Materials ...

NSF awards more than $150 million to early career researchers in engineering and computer science ...

We Make The City Festival Workshop: “Audit the Algorithm” ...

Data mining the law ...

Copper miners can slash their energy and water use for every tonne of the metal produced thanks to a breakthrough ore sorting analyser developed by CSIRO ...

Fermilab computing experts bolster NOvA evidence: 1 million compute cores consumed on NERSC Cori supercomputer ...

The CesgaHack returns in September to help scientists to accelerate their applications ...

The Cloud

The Cloudifacturing Programme to Distribute 735.000 euro to the European Industry for HPC in the Cloud Apllications ...

Verne Global brings sustainably-powered HPC to the G-Cloud 10 marketplace ...

High performance nitride semiconductor for environmentally friendly photovoltaics

(a) This is a copper and Copper Nitride. (b) Theoretical Calculation for P-type and N-type Copper Nitride. (c) Direct Observation of Fluorine Position in Fluorine-doped Copper Nitride. (a) An image of thin film copper plates before and after reacting with ammonia and oxygen. Copper metal has been transformed to copper nitride. (b) Copper insertion for an n-type semiconductor and fluorine insertion for a p-type semiconductor. (c) Nitrogen plotted in red, fluorine in green, and copper in blue. Fluorine is located at the open space of the crystal as predicted by the theoretical calculation. Credit: Advanced Materials3 Jul 2018 Tokyo - A Tokyo Institute of Technology research team has shown copper nitride acts as an n-type semiconductor, with p-type conduction provided by fluorine doping, utilizing a unique nitriding technique applicable for mass production and a computational search for appropriate doping elements, as well as atomically resolved microscopy and electronic structure analysis using synchrotron radiation. These n-type and p-type copper nitride semiconductors could potentially replace the conventional toxic or rare materials in photovoltaic cells.

Thin film photovoltaics have equivalent efficiency and can cut the cost of materials compared to market-dominating silicon solar panels. Utilizing the photovoltaic effect, thin layers of specific p-type and n-type materials are sandwiched together to produce electricity from sunlight. The technology promises a brighter future for solar energy, allowing low-cost and scalable manufacturing routes compared to crystalline silicon technology, even though toxic and rare materials are used in commercialized thin film solar cells. A Tokyo Institute of Technology team has challenged to find a new candidate material for producing cleaner, cheaper thin film photovoltaics.

They have focused on a simple binary compound, copper nitride that is composed of environmentally friendly elements. However, growing a nitride crystal in a high quality form is challenging as history tells us to develop gallium nitride blue LEDs. Matsuzaki and his coworkers have overcome the difficulty by introducing a novel catalytic reaction route using ammonia and oxidant gas. This compound, pictured through the photograph in figure (a), is an n-type conductor that has excess electrons. On the other hand, by inserting fluorine element in the open space of the crystal, they found this n-type compound transformed into p-type as predicted by theoretical calculations and directly proven by atomically resolved microscopy in figures (b) and (c), respectively.

All existing thin film photovoltaics require a p-type or n-type partner in their makeup of a sandwich structure, requiring huge efforts to find the best combination. P-type and n-type conduction in the same material developed by Matsuzaki and his coworkers are beneficial to design a highly efficient solar cell structure without such efforts. This material is non-toxic, abundant, and therefore potentially cheap--ideal replacements for in use cadmium telluride and copper indium gallium diselenide thin film solar cells. With the development of these p-type and n-type semiconductors, in a scalable forming technique using simple safe and abundant elements, the positive qualities will further bring thin film technology into the light.

Source: Tokyo Institute of Technology

Back to Table of contents

Primeur weekly 2018-07-09

Focus on Europe

HPE Helps EPFL Blue Brain project unlock the secrets of the brain ...

NVIDIA and Luxembourg Government Announce Cooperation on Artificial Intelligence and High Performance Computing  ...

Hardware

Green Revolution Cooling Now Doing Business as GRC ...

Samsung Foundry and Arm expand collaboration to drive HPC Solutions ...

Huawei AI Fabric Ultra-High-Speed Ethernet Solution Passes EANTC's High-Performance Data Center Test ...

Princeton Research Computing introduces the University's newest TIGER supercomputer ...

Newcastle's new supercomputer - called Rocket - installed ...

Applications

NNSA awards $10 million center grant to Texas A&M-led consortium ...

Stem cell therapy drug may protect against smoke-related COPD symptoms ...

Atos launches the most comprehensive AI software suite available on the market to simplify and accelerate adoption ...

High performance nitride semiconductor for environmentally friendly photovoltaics ...

Berkeley Lab Team Wins Data-Driven Scavenger Hunt for Simulated Nuclear Materials ...

NSF awards more than $150 million to early career researchers in engineering and computer science ...

We Make The City Festival Workshop: “Audit the Algorithm” ...

Data mining the law ...

Copper miners can slash their energy and water use for every tonne of the metal produced thanks to a breakthrough ore sorting analyser developed by CSIRO ...

Fermilab computing experts bolster NOvA evidence: 1 million compute cores consumed on NERSC Cori supercomputer ...

The CesgaHack returns in September to help scientists to accelerate their applications ...

The Cloud

The Cloudifacturing Programme to Distribute 735.000 euro to the European Industry for HPC in the Cloud Apllications ...

Verne Global brings sustainably-powered HPC to the G-Cloud 10 marketplace ...