Non-Silicon-Based Solar cells
National Institute of Advanced Industrial Science and Technology Japan has developed a Thin Film Technology which can subdue the consumption of selenium raw materials below one-tenth of the conventional standard at the time of manufacturing of non-silicon-based CIGS thin film solar cells. Due to this, it is possible to expect mass production of high performance CIGS module. CIGS solar cells use Cu (In, Ga) Se2 (Copper, Indium, Gallium, 2 Selenium: CIGS) as the light absorption layer. It has attracted attention due to the possibility of decreasing the thickness of the photoelectric conversion layer to a few µm, and theoretical conversion efficiency exceeds that of a single crystalline silicon solar cell. The multi-source evaporation process is effective for the production of high performance CIGS thin films, but as the efficiency of selenium was low by this method, technical control of thin films and reduction of cost was difficult, thereby making it unfit for industrial use. By forming radicals from vapor selenium, and raising their reactivity compared with the conventional selenium vapor deposition method, they succeeded in improving the efficiency of selenium consumption by more than 10 times. For further information, contact National Institute for Advanced Industrial Science and Technology (AIST) 1-3-1, Kasumigaseki Chiyoda-ku, Tokyo 100-8921 Japan Tel: +81-3-5501-0900 For inquiries about Technology Transfer please send E-mail to: aist-innovations@m.aist.go.jp
Sector: Renewable Energy Technologies
Country: India
Area of Application: Photovoltaics, Renewable Energy
Keywords: Non-silicon solar cells, Selenium
Advantages: 1. It has made possible to decrease the thickness of the photoelectric conversion layer to a few µm, and theoretical conversion efficiency exceeds that of a single crystalline silicon solar cell
Environmental aspects: Energy efficiency
Development Status: Commercial Prototype
Legal Protection:
Technical specifications:
Transfer Terms: Equipment Supply
Target Countries:
Estimated cost (US$):
Upload any relevant document:
Contact Person: APCTT (UNESCAP)
Address: Asian and Pacific Center for Transfer of Technology (APCTT) C-2, Qutab Instituational Area
City: New Delhi
Country: India
Zip/Pin Code: 110016