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
조진우박후근도영락민병권
Keywords
bulk heterojunction; ITO; nanorods; thin films
Issue Date
2012-04
Publisher
Materials Research Society
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 ITO nanorods was then filled with CIS nanoparticle ink, which was pre-synthesized using the solvothermal route. 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 the solar cell efficiency of 1.01 %. The details of characterization and solar cell test of the films will be discussed in the presentation.
URI
http://pubs.kist.re.kr/handle/201004/42278
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KIST Publication > Conference Paper
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