Efficient Organic Photovoltaic Cells with Nano-Domain Control of the Interpenetrating Network Morphology Through Post-Thermal Treatment
- Authors
- Kim, Namkyoon; Oh, I. H.; Yoon, Sungmin; Lee, Cheol Eui; Choi, J. Y.; Youn, B. H.; Jang, C. Y.; Kim, J.
- Issue Date
- 12월-2009
- Publisher
- KOREAN PHYSICAL SOC
- Keywords
- Organic solar cells; Photovoltaics; Post-thermal treatment; Organic photovoltaic cell; Morphology
- Citation
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.55, no.6, pp.2654 - 2658
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY
- Volume
- 55
- Number
- 6
- Start Page
- 2654
- End Page
- 2658
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/118795
- DOI
- 10.3938/jkps.55.2654
- ISSN
- 0374-4884
- Abstract
- Regioregular poly (3-hexylthiophene) (rr-P3HT) is a promising candidate for polymer photovoltaic application for its stability and absorptions in the red region. We were able to obtain more efficient bulk heterojunction organic photovoltaic cells by using blend films of rr-P3HT and 1-(3-methoxycarbonyl)-propyl-1-phenyl-[6,6]-C61-butyric acid methyl ester (PCBM) subjected to a post thermal treatment process. Blend films of P3HT:PCBM = 1:0.8 weight-ratio were prepared using chloroform. Through a thermal annealing near the glass transition temperature (T-g), we examined the formation of nanodomains within the matrix. The improved nanoscale morphology, the increased crystallinity of the semiconducting polymer, and the improved contact to the electron-collecting electrode facilitated charge generation and charge transport to and collection at the electrodes, leading to an enhanced device efficiency by lowering the series resistance of the organic photovoltaic cells.
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Collections - College of Science > Department of Physics > 1. Journal Articles
- Graduate School > Department of Life Sciences > 1. Journal Articles
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