Process for fabricating polycrystalline semiconductor thin-film solar cells, and cells produced thereby
- Golden, CO
- Lakewood, CO
A novel, simplified method for fabricating a thin-film semiconductor heterojunction photovoltaic device includes initial steps of depositing a layer of cadmium stannate and a layer of zinc stannate on a transparent substrate, both by radio frequency sputtering at ambient temperature, followed by the depositing of dissimilar layers of semiconductors such as cadmium sulfide and cadmium telluride, and heat treatment to convert the cadmium stannate to a substantially single-phase material of a spinel crystal structure. Preferably, the cadmium sulfide layer is also deposited by radio frequency sputtering at ambient temperature, and the cadmium telluride layer is deposited by close space sublimation at an elevated temperature effective to convert the amorphous cadmium stannate to the polycrystalline cadmium stannate with single-phase spinel structure.
- Research Organization:
- Midwest Research Institute, Kansas City, MO (United States)
- DOE Contract Number:
- AC36-98GO10337
- Assignee:
- Midwest Research Institute (Kansas City, MO)
- Patent Number(s):
- US 6137048
- OSTI ID:
- 873335
- Country of Publication:
- United States
- Language:
- English
CdS/CdTe thin-film devices using a Cd[sub 2]SnO[sub 4] transparent conducting oxide
|
conference | January 1997 |
CdS/CdTe thin-film solar cell with a zinc stannate buffer layer
|
conference | January 1999 |
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Related Subjects
fabricating
polycrystalline
semiconductor
thin-film
solar
cells
produced
novel
simplified
method
heterojunction
photovoltaic
device
initial
steps
depositing
layer
cadmium
stannate
zinc
transparent
substrate
radio
frequency
sputtering
ambient
temperature
followed
dissimilar
layers
semiconductors
sulfide
telluride
heat
treatment
convert
substantially
single-phase
material
spinel
crystal
structure
preferably
deposited
close
space
sublimation
elevated
effective
amorphous
transparent substrate
cadmium stannate
film solar
temperature effective
radio frequency
solar cell
elevated temperature
solar cells
ambient temperature
photovoltaic device
heat treatment
crystal structure
cadmium telluride
cadmium sulfide
crystalline semiconductor
phase material
zinc stannate
cells produced
thin-film semiconductor
sulfide layer
film semiconductor
heterojunction photovoltaic
simplified method
substantially single
dissimilar layers
initial step
fabricating polycrystalline
parent substrate
polycrystalline semiconductor
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