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Title Influence of Characteristic Energies and Charge Carriers Mobility on the Performance of a HIT Solar Cell
Authors Wassila, L.R.
Djaaffar, R.
ORCID
Keywords HIT solar cell
Amorphous silicon
Crystalline silicon
Characteristics energies
Band tails
Mobility
ASDMP
Type Article
Date of Issue 2017
URI http://essuir.sumdu.edu.ua/handle/123456789/65924
Publisher Sumy State University
License
Citation Wassila, L.R. Influence of Characteristic Energies and Charge Carriers Mobility on the Performance of a HIT Solar Cell [Текст] / L.R. Wassila, R. Djaaffar // Журнал нано- та електронної фізики. – 2017. – Т.9, № 4. – 04001. – DOI: 10.21272/jnep.9(4).04001.
Abstract In this article, two factors that limit the performance of HIT solar cells (Heterojunction with Intrinsic Thin layer) based on amorphous silicon / crystalline silicon are studied. First, we study the influence of the valence band tail width (characteristic energy ED) and the conduction band tail width (characteristic energy EA) of hydrogenated amorphous silicon [1]. Then we analyze the effect of electrons mobility μn and holes mobility μp in the emitter of the structure ITO/p-a-Si:H /i-pmSi:H /n-c-Si/Al. Our results show that a decrease of ED in the p-a-Si: H layer decreases the donors density of states in the gap, as well as holes recombination in this layer. However, no amelioration is observed when EA decreases. Furthermore, we show that increasing the mobility of charge carriers μn and μp, enhance the performance of the studied solar cells.
Appears in Collections: Журнал нано- та електронної фізики (Journal of nano- and electronic physics)

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