Enhanced charge collection via nanoporous morphology in polymer solar cells
- Authors
- Lee, Hang Ken; Jeon, Ji Hye; Wang, Dong Hwan; Park, O. Ok; Kim, Jai-Kyung; Im, Sang Hyuk; Park, Jong Hyeok
- Issue Date
- Mar-2010
- Publisher
- AMER INST PHYSICS
- Citation
- APPLIED PHYSICS LETTERS, v.96, no.10
- Journal Title
- APPLIED PHYSICS LETTERS
- Volume
- 96
- Number
- 10
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/42149
- DOI
- 10.1063/1.3359425
- ISSN
- 0003-6951
1077-3118
- Abstract
- We demonstrated a simple and nonlithographic method that enlarges the active layer/metal electrode contact area in polymer solar cells by adding the thermal initiator 2,2'-azobisisobutyronitrile (AIBN) as a nanohole generating agent. From diffused light spectra and x-ray diffraction measurements, it is found that device performance enhancement comes not from a change in the charge carrier generation or transportation characteristics but from increased charge carrier collection due to the reduced contact resistance and shortened pathway to the electrode caused by enlarged interface area. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3359425]
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