Bulk heterojunction formation between indium tin oxide nanorods and CuInS2 nanoparticles for inorganic thin film solar cell applications
- Bulk heterojunction formation between indium tin oxide nanorods and CuInS2 nanoparticles for inorganic thin film solar cell applications
- 조진우; 박후근; 도영락; 민병권
- bulk heterojunction; ITO; nanorods; thin films
- Issue Date
- Materials Research Society
- 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.
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