New types of high efficiency solar cells based on a-Si

Journal Article · Sat Oct 01 04:00:00 EDT 1983 · Appl. Phys. Lett.; (United States)

DOI:https://doi.org/10.1063/1.94462· OSTI ID:5612909

Hamakawa, Y; Fujimoto, K; Okuda, K; Kashima, Y; Nonomura, S; Okamoto, H

Three types of new structure a-Si solar cells having more than 9% efficiency are presented. The first one has a high optical reflection back electrode metal alloyed with optically transparent n-type ..mu..c-Si deposited on the conventional glass substrate a-SiC/a-Si heterojunction solar cell. The second type structure is an inverted p-i-n solar cell having Ag/TiO/sub 2//a-Si metal-insulator-semiconductor type back surface electrode which more efficiently collects longer wavelength photocarriers just above the band edge. The third structure demonstrated here has a-Si/polycrystalline tandem junction to pick up the energy of longer wavelength photons passing through the front side of the a-Si solar cell. All key technologies proposed here are practical and offer more promised real alternatives for the fabrication of high efficiency a-Si solar cells.

• Research Organization: Faculty of Engineering Science, Osaka University, Toyonaka, Osaka 560, Japan
• OSTI ID: 5612909
• Journal Information: Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 43:7; ISSN APPLA
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140501* -- Solar Energy Conversion-- Photovoltaic Conversion
AMORPHOUS STATE
DATA
DIRECT ENERGY CONVERTERS
EFFICIENCY
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELEMENTS
EQUIPMENT
EXPERIMENTAL DATA
HETEROJUNCTIONS
INFORMATION
JUNCTIONS
NUMERICAL DATA
PHOTOCONDUCTIVITY
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PHYSICAL PROPERTIES
SEMICONDUCTOR JUNCTIONS
SEMIMETALS
SILICON
SOLAR CELLS
SOLAR EQUIPMENT