Glow discharge amorphous silicon tin alloys

Conference · Tue May 01 04:00:00 EDT 1984 · Conf. Rec. IEEE Photovoltaic Spec. Conf.; (United States)

OSTI ID:6075535

Mahan, A H; von Roedern, B; Madan, A; Sanchez, A; Williamson, D L

The authors present basic density of states, photoresponse, and transport measurements made on low bandgap a-SiSn:H alloys produced by RF glow discharge deposition of SiH/sub 4/, H/sub 2/ and Sn(CH/sub 3/)/sub 4/. Although they demonstrate major changes in the local bonding structure and the density of states, the normalized photoresponse still remains poor. They provide evidence that two types of defect levels are produced with Sn alloying, and that the resultant density of states increase explains not only the n- to ptype conductivity transition reported earlier, but also the photoresponse behavior. They also report that a-SiSn:H can be doped with P. From the device analysis they suggest that in order to improve the alloy performance significantly, the density of states should be decreased to levels comparable to or lower than those presently obtained in a-Si:H.

• Research Organization: Solar Energy Research Institute, Golden, CO
• OSTI ID: 6075535
• Report Number(s): CONF-840561-
• Conference Information: Journal Name: Conf. Rec. IEEE Photovoltaic Spec. Conf.; (United States)
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140501* -- Solar Energy Conversion-- Photovoltaic Conversion
ALLOY SYSTEMS
ALLOYS
AMORPHOUS STATE
BINARY ALLOY SYSTEMS
CHEMICAL BONDS
DENSITY
DEPOSITION
DIRECT ENERGY CONVERTERS
ELECTRIC DISCHARGES
ELECTRICAL PROPERTIES
ELEMENTS
EQUIPMENT
FABRICATION
FUNCTIONS
GLOW DISCHARGES
GRADED BAND GAPS
HYDRIDES
HYDROGEN COMPOUNDS
MATERIALS
N-TYPE CONDUCTORS
OPTICAL PROPERTIES
ORGANIC COMPOUNDS
ORGANIC SILICON COMPOUNDS
P-TYPE CONDUCTORS
PERFORMANCE
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PHYSICAL PROPERTIES
RESPONSE FUNCTIONS
RF SYSTEMS
SEMICONDUCTOR MATERIALS
SEMIMETALS
SILANES
SILICON
SILICON ALLOYS
SILICON COMPOUNDS
SILICON SOLAR CELLS
SOLAR CELLS
SOLAR EQUIPMENT
TIN ALLOYS
TIN COMPOUNDS