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- Title
Enhanced Device Efficiency of Bilayered Inverted Organic Solar Cells Based on Photocurable P3HTs with a Light-Harvesting ZnO Nanorod Array.
- Authors
Kim, Sehwan; Koh, Joo Hwan; Yang, Xu; Chi, Won Seok; Park, Chihyun; Leem, Jung Woo; Kim, Byeonggwan; Seo, Seogjae; Kim, Yuna; Yu, Jae Su; Kim, Jong Hak; Kim, Eunkyoung
- Abstract
Periodically patterned zinc oxide nanorod (P-ZnO NR) layers are directly prepared from a pre-patterned ZnO seed layer using a polydimethylsiloxane (PDMS) elastomeric stamp and then applied in inverted organic photovoltaic devices (IOPVs). The IOPV is assembled with a hydrothermally grown zinc oxide nanorod patterns with a (100) preferential crystal orientation as an electron transport buffer layer (ETBL) and photoactive bilayer consisting of methacylate end-functionalized poly(3-hexylthiophene) (P3HT-MA), phenyl-C60-butyric acid methyl ester (PC60BM) and indene-C60 bis-adduct (IC60BA). In te IOPVs, the P-ZnO NR is found to induce efficient light harvesting and the photocrosslinkable P3HTs afford solution-processed bilayer architecture in IOPVs to show improved device stability and performance (PCEmax= 5.95%), as the bilayered structure allowed direct exciton splitting, thus reducing the charge recombination.
- Subjects
SOLAR cells; NANORODS; ZINC oxide; POLYDIMETHYLSILOXANE; CRYSTAL orientation; ELECTRON transport; METHYL formate
- Publication
Advanced Energy Materials, 2014, Vol 4, Issue 6, pn/a
- ISSN
1614-6832
- Publication type
Article
- DOI
10.1002/aenm.201301338