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Optimization of CdSe quantum dot concentration in P3HT:PCBM layer for the improved performance of hybrid solar cells
- Authors
- Park, Eung-Kyu; Kim, Jae-Hyoung; Ji, In Ae; Choi, Hye Mi; Kim, Ji-Hwan; Lim, Ki-Tae; Bang, Jin Ho; Kim, Yong-Sang
- Issue Date
- May-2014
- Publisher
- Elsevier BV
- Keywords
- Hybrid solar cell; P3HT:PCBM; CdSe quantum dot; Recombination mechanism
- Citation
- Microelectronic Engineering, v.119, pp 169 - 173
- Pages
- 5
- Indexed
- SCI
SCIE
SCOPUS
- Journal Title
- Microelectronic Engineering
- Volume
- 119
- Start Page
- 169
- End Page
- 173
- ISSN
- 0167-9317
1873-5568
- Abstract
- The improved performance of hybrid solar cells was obtained due to the effects of CdSe quantum dots (QDs) blended in the active layer. Different concentrations of CdSe QDs were mixed in the poly(3-hexylthiophene):[6,6]-phenyl C-61 butyric acid methyl ester (P3HT:PCBM) based active layer. We investigated the effects of CdSe QDs on the solar cell performances by ranging its concentration from 2 to 24 mg/mL. The charge transport in the active layer was improved at the optimized CdSe QDs concentration of 6 mg/mL. The solar cell with pristine active layers showed a 2.98% power conversion efficiency while that with 6 mg/mL CdSe QDs blended in layer showed a higher power conversion efficiency of 3.35% under AM 1.5G illumination. Analysis of recombination mechanism using the current density-voltage (J-V) characteristic at various light intensities was also performed. (C) 2014 Elsevier B.V. All rights reserved.
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Related Researcher
- Bang, Jin Ho
- ERICA 공학대학 (ERICA 에너지바이오학과)