Bulk Heterojunction Formation between Indium Tin Oxide Nanorods and CuInS2 Nanoparticles for Inorganic Thin Film Solar Cell Applications

Title
Bulk Heterojunction Formation between Indium Tin Oxide Nanorods and CuInS2 Nanoparticles for Inorganic Thin Film Solar Cell Applications
Authors
조진우박세진김재훈김웅박후근도영락민병권
Keywords
bulk heterojunction; solar cells; ink; solution process; ITO; indium tin oxide; nanorods; CuInS2
Issue Date
2012-02
Publisher
ACS Applied Materials & Interfaces
Citation
VOL 4, NO 2, 849-853
Abstract
In this study, we developed a novel inorganic thin film solar cell configuration in which bulk heterojunction was formed between indium tin oxide (ITO) nanorods and CuInS2 (CIS). Specifically, ITO nanorods were first synthesized by the radio frequency magnetron sputtering deposition method followed by deposition of a dense TiO2 layer and CdS buffer layer using atomic layer deposition and chemical bath deposition method, respectively. The spatial region between the nanorods was then filled with CIS nanoparticle ink, which was presynthesized using the colloidal synthetic method. We observed that complete gap filling was achieved to form bulk heterojunction between the inorganic phases. As a proof-of-concept, solar cell devices were fabricated by depositing an Au electrode on top of the CIS layer, which exhibited the best photovoltaic response with a Voc, Jsc, FF, and efficiency of 0.287 V, 9.63 mA/cm2, 0.364, and 1.01%, respectively.
URI
http://pubs.kist.re.kr/handle/201004/42062
ISSN
19448244
Appears in Collections:
KIST Publication > Article
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