The study of photoelectrochemical behavior of germanium sulphoselenide crystals on enhancement of sulpher content
Citation
Dipika B Patel, Sandeep Chovatiya, G K Solanki "The study of photoelectrochemical behavior of germanium sulphoselenide crystals on enhancement of sulpher content", International Journal of Engineering Trends and Technology (IJETT), V46(4),231-237 April 2017. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group
Abstract
This paper represents the investigation on
growth of single crystals of Germanium Sulpho
Selenide using Direct Vapour Transport Technique.
The stoichiometries of the grown crystals have been
analyzed using EDAX which shows that the grown
crystals possess nearly stoichiometric proportion of
starting material. The orthorhombic semiconducting
compound GeS0.25Se0.75, GeS0.5Se0.5 and GeS0.75Se0.25
having various interesting electrical, optical and
photoelectric properties. Using UV-VIS-NIR
spectrophotometer optical absorption spectra of the
crystals to obtain direct and indirect band gap of the
material. Author has attempted to fabricate Photo
Electro Chemical solar cell with grown mixed
Germanium Sulphoselenide single crystals. Mott-
Schottky plots have been used to study the energy
band location and redox analysis of the material.
This study justifies the appropriate choice of
electrolyte for PEC work. The solar cell parameters
e.g. the fill factor (FF), open circuit voltage (Voc),
short circuit current (Isc) and efficiency (?) for all
the cells have been calculated. All the results have
been studied and implications have been discussed
in the paper.
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Keywords
PEC, DVT, EDAX, Mott-Schottky,
Electrolyte.