3-D architecture between indium tin oxide nano-rods and a solution processed CuInGaS2 absorber layer for thin film solar cells
| Autor: | Yun Jeong Hwang, Gi Soon Park, Young-Ki Lee, Chan Sik Kim, Van Ben Chu, Byoung Koun Min, Young Rag Do |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
Nanotechnology 02 engineering and technology Quantum dot solar cell 01 natural sciences law.invention law 0103 physical sciences Solar cell Materials Chemistry Solution process 010302 applied physics business.industry Energy conversion efficiency Metals and Alloys Surfaces and Interfaces 021001 nanoscience & nanotechnology Copper indium gallium selenide solar cells Surfaces Coatings and Films Electronic Optical and Magnetic Materials Indium tin oxide Optoelectronics Nanorod 0210 nano-technology business Layer (electronics) |
| Zdroj: | Thin Solid Films. 636:506-511 |
| ISSN: | 0040-6090 |
| Popis: | The performance of thin film solar cells can be significantly enhanced by efficient light management. In this study, we integrated one-dimensional indium tin oxide (ITO) nanorods into CuInGaS 2 (CIGS) films to fabricate 3-D nanostructured thin film solar cells. 400, 600, and 1000 nm ITO nanorod substrates were used as back contact electrodes. Precursor solutions of Cu, In, and Ga with and without binder materials were prepared to fill the gaps between the ITO nanorods and increase the thickness of the CIGS films, respectively. Heat treatments both in air and in H 2 S were applied to form polycrystalline CIGS films while minimizing carbon impurities. 3-D nanostructured solar cell devices with Al,Ni/AZO/i-ZnO/CdS/CIGS/ITO nanorods/Glass structures were fabricated and characterized. Under standard irradiation conditions, the 600 nm ITO nanorod solar device was found to have the maximum power conversion efficiency of 6%. This superior efficiency may be attributed to enhanced light absorption and complete gap filling. |
| Databáze: | OpenAIRE |
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