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Graded affinity photovoltaic cell

Patent ·
OSTI ID:5751661
An improved photovoltaic cell, and method for its manufacture, comprising front and back electrically conductive layers between which is sandwiched a primary light-absorbing layer of amorphous semiconducting material displaying low photogenerated carrier mobility below about 50 cm/sup 2//V second, the constitution of which primary layer is fabricated to provide an affinity gradient reducing back-diffusion of a preselected species of photogenerated carrier (electrons or holes) to thereby forestall non-productive recombination with carriers of opposite type.
Assignee:
University of Delaware
Patent Number(s):
US 4542256
OSTI ID:
5751661
Country of Publication:
United States
Language:
English

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Related Subjects

14 SOLAR ENERGY
140501* -- Solar Energy Conversion-- Photovoltaic Conversion
AMORPHOUS STATE
CARRIER MOBILITY
CHARGE CARRIERS
DESIGN
DIRECT ENERGY CONVERTERS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
EQUIPMENT
FABRICATION
MATERIALS
MOBILITY
PHOTOCONDUCTIVITY
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PHYSICAL PROPERTIES
RECOMBINATION
SEMICONDUCTOR MATERIALS
SOLAR CELLS
SOLAR EQUIPMENT
SUBSTRATES