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Organic photovoltaic effects depending on CuPc layer thickness
- Issue Date
- Sep-2004
- Publisher
- KOREAN PHYSICAL SOC
- Keywords
- photovoltaic effects; CuPc; organic semiconductor; solar cells
- Citation
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.45, no.3, pp.627 - 629
- Journal Title
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY
- Volume
- 45
- Number
- 3
- Start Page
- 627
- End Page
- 629
- ISSN
- 0374-4884
- Abstract
- Organic photovoltaic effects were studied in device structures of ITO/CuPc/Al and ITO/CUPC/C-60/BCP/Al by varying the CuPc layer thickness. Since the exciton diffusion length is relatively short in organic semiconductors, a study on the thickness-dependent photovoltaic effects is important. The thickness of the CuPc layer was varied from 10 nm to 50 nm. We found that the optimum CuPc layer thickness was around 40 nm from the analysis of the current density-voltage characteristics in an ITO/CuPc/Al photovoltaic cell. The efficiency of the device shows that the multi-layered heterojunction structure is more appropriate for photovoltaic cells.
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Related Researcher
- Kim, Tae Wan
- Engineering (Applied Science)