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Improvement of efficiency of ITO/Se thin film solar cells using tellurium stimulator
Author(s) -
Patel N. G.,
Lashkari B. H.,
Panchal C. J.,
Makhija K. K.
Publication year - 1994
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.2170290616
Subject(s) - tellurium , thin film , materials science , indium tin oxide , selenium , crystallite , deposition (geology) , optoelectronics , indium , vacuum deposition , solar cell , scanning electron microscope , nanotechnology , composite material , metallurgy , paleontology , sediment , biology
Indium Tin Oxide ITO/Se thin film solar cells have been fabricated by vacuum deposition. Prior to deposition of selenium film, ultrathin tellurium film has been deposited on ITO thin film. Tellurium film acts as a stimulator for bringing improvement in crystallite size, adhesion to ITO and electrical behaviour of selenium thin films. The maximum efficiency of the ITO/Se thin film solar cells without tellurium stimulator and with tellurium stimulator under illumination AM1 (100 mW cm −2 ) are found to be 1.68% and 2.27% while under fluorescent tubelight (0.15 mW cm −2 ) are found to be 5.85% and 7.05% respectively. The ITO/Se thin film solar cells exhibits high spectral response at short wavelength. The barrier height of the ITO/Se thin film solar cells was determined.