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Thermolytic Deposition of MoS 2 Nanolayer for Si Solar Cell Applications
Author(s) -
Satha Suresh,
Sahu Rajkumar,
Mun Jonghun,
Kim Keunjoo
Publication year - 2020
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.201900993
Subject(s) - materials science , amorphous solid , annealing (glass) , solar cell , heterojunction , crystalline silicon , chemical engineering , ohmic contact , thin film , silicon , optoelectronics , nanotechnology , crystallography , composite material , chemistry , layer (electronics) , engineering
The thermolytic deposition of MoS 2 nanolayers for use in Si solar cells is investigated for which a thin MoS 2 nanolayer is grown on a crystalline Si substrate by the thermolysis method. The deposited MoS 2 nanolayer and Si substrate are annealed and show a transition from an amorphous to a crystalline phase as the annealing temperature increases. The MoS 2 (002) crystalline peak at 14.04° appears at an annealing temperature of 450 °C. The heterojunction interface of MoS 2 /np‐Si shows a mixed amorphous and crystalline phase. The Al/MoS 2 has better Ohmic contact compared with Al/Si. The MoS 2 nanolayer is introduced into the cell structure of a SiN x /a‐Si(n)/MoS 2 /np‐Si cell, the cell shows a photoconversion efficiency of 11.47%.