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Sel surya murah  yang terbuat dari kulit udang

Para peneliti telah berhasil membuat solar sel - listrik- dengan bahan kimia yang ditemukan  pada cangkang udang dan krustasea lainnya untuk pertama kalinya ....read more

Cheap solar cells made from shrimp shells

Date:

February 18, 2015

Source:

University of Queen Mary London

Summary:

Researchers have successfully created electricity-generating solar-cells with chemicals found the shells of shrimps and other crustaceans for the first time.

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researchers at Queen Mary University of London (QMUL) have successfully created electricity-generating solar-cells with chemicals found the shells of shrimps and other crustaceans for the first time.

The materials chitin and chitosan found in the shells are abundant and significantly cheaper to produce than the expensive metals such as ruthenium, which is similar to platinum, that are currently used in making nanostructured solar-cells.

Currently the efficiency of solar cells made with these biomass-derived materials is low but if it can be improved they could be placed in everything from wearable chargers for tablets, phones and smartwatches, to semi-transparent films over window.

Researchers, from QMUL’s School of Engineering and Materials Science, used a process known as hydrothermal carbonization to create the carbon quantum dots (CQDs) from the widely and cheaply available chemicals found in crustacean shells. They then coat standard zinc oxide nanorods with the CQDs to make the solar cells.

Dr Joe Briscoe, one of the researchers on the project, said: “This could be a great new way to make these versatile, quick and easy to produce solar cells from readily available, sustainable materials. Once we’ve improved their efficiency they could be used anywhere that solar cells are used now, particularly to charge the kinds of devices people carry with them every day.

Professor Magdalena Titirici, Professor of Sustainable Materials Technology at QMUL, said: “New techniques mean that we can produce exciting new materials from organic by-products that are already easily available. Sustainable materials can be both high-tech and low-cost.”

“We’ve also used biomass, in that case algae, to make the kinds of supercapacitors that can be used to store power in consumer electronics, in defibrillators and for energy recovery in vehicles.”

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Story Source:

The above story is based on materials provided by University of Queen Mary London. Note: Materials may be edited for content and length.

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Journal Reference:

1.    Joe Briscoe, Adam Marinovic, Marta Sevilla, Steve Dunn, Magdalena Titirici.Biomass-Derived Carbon Quantum Dot Sensitizers for Solid-State Nanostructured Solar Cells. Angewandte Chemie International Edition, 2015 (in press)

http://www.sciencedaily.com/releases/2015/02/150218191724.htm

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