H - Electricity – 01 – L
Patent
H - Electricity
01
L
345/22
H01L 31/06 (2006.01) H01L 31/052 (2006.01) H01L 31/075 (2006.01) H01L 31/20 (2006.01)
Patent
CA 1187970
ABSTRACT OF THE DISCLOSURE There is disclosed new and improved photo- voltaic devices which provide increased short cir- cuit currents and efficiencies over that previ- ously obtainable from prior devices. The dis- closed devices include incident radiation direct- ing means for directing at least a portion of the incident light through the active region or re- gions thereof at angles sufficient to substan- tially confine the directed radiation in the devices. This allows substantially total utiliza- tion of photogenerated electron-hole pairs. Fur- ther, because the light is directed through the active region or regions at such angles, the active regions can be made thinner to also in- crease collection efficiencies. The incident radiation directors can be ran- dom surface or bulk reflectors to provide random scattering of the light, or periodic surface or bulk reflector to provide selective scattering of the light. While the present invention is applicable to photovoltaic devices formed from any type of semi- conductor material, as for example, crystalline, polycrystalline, or amorphous semiconductor alloys or any combination thereof, disclosure herein is primarily directed to photovoltaic devices formed from amorphous silicon alloys preferably incor- porating fluorine as a density of states reducing element. The disclosure is also directed to, without limitation, photovoltaic devices of the p-i-n configuration, both as single cells and multiple cells arranged in tandem.
421646
Allred David D.
Czubatyj Wolodymyr
Doehler Joachim
Reyes Jaime M.
Singh Rajendra
Energy Conversion Devices Inc.
Macrae & Co.
LandOfFree
Photovoltaic device having incident radiation directing... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Photovoltaic device having incident radiation directing..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photovoltaic device having incident radiation directing... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1176143