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The effect of TiO 2 compact layer in ZnO nanorod based CdS/CdSe quantum‐dot sensitized solar cell
Author(s) -
Kim SooKyoung,
Son MinKyu,
Park SongYi,
Jeong MyeongSoo,
Savariraj Dennyson,
Prabakar Kandasamy,
Kim HeeJe
Publication year - 2014
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.201330476
Subject(s) - nanorod , quantum dot , materials science , tin oxide , layer (electronics) , electrolyte , solar cell , optoelectronics , electrode , chemical engineering , nanotechnology , doping , chemistry , engineering
CdS/CdSe quantum‐dot sensitized solar cells (QDSCs) were fabricated from ZnO nanorods deposited on fluorine‐doped tin oxide (FTO) substrates via the application of polysulfide redox reactions and a CuS counter electrode. In the present study, a TiO 2 compact layer was used to suppress the recombination process. Typically, a TiO 2 compact layer prevents direct contact between the FTO and electrolyte. The TiO 2 compact layer with optimal thickness was fabricated by varying the soaking time in a TiCl 4 solution. In addition, the morphology and influence of the compact layer on the interface between the FTO/electrolyte were analyzed.
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