Diketopyrrolopyrrole-based polymer:fullerene nanoparticle films with thermally stable morphology for organic photovoltaic applications
- Univ. of Newcastle, Callaghan NSW (Australia). Centre for Organic Electronics
- Univ. of Newcastle, Callaghan NSW (Australia). Centre for Organic Electronics; CSIRO Energy Technology, Newcastle (Australia)
- Inst. of Materials Research and Engineering (IMRE), Agency for Science, Technology, and Research (A*STAR), Singapore (Singapore)
- Univ. of South Australia, Mawson Lakes Campus, SA (Australia). Ian Wark Research Inst.; Chalmers Univ. of Technology, Goteborg (Sweden). Dept. of Chemical and Biological Engineering/Polymer Technology
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)
- Inst. of Materials Research and Engineering (IMRE), Agency for Science, Technology, and Research (A*STAR), Singapore (Singapore); Queensland Univ. of Technology (QUT), Brisbane (Australia). School of Chemistry, Physics and Mechanical Engineering
Polymer:fullerene nanoparticles (NPs) offer two key advantages over bulk heterojunction (BHJ) films for organic photovoltaics (OPVs), water-processability and potentially superior morphological control. Once an optimal active layer morphology is reached, maintaining this morphology at OPV operating temperatures is key to the lifetime of a device. Here in this paper we study the morphology of the PDPP-TNT (poly{3,6-dithiophene-2-yl-2,5-di(2-octyldodecyl)-pyrrolo[3,4-c]pyrrole-1,4-dione-alt-naphthalene}):PC71BM ([6,6]-phenyl C71 butyric acid methyl ester) NP system and then compare the thermal stability of NP and BHJ films to the common poly(3-hexylthiophene) (P3HT): phenyl C61 butyric acid methyl ester (PC61BM) system. We find that material Tg plays a key role in the superior thermal stability of the PDPP-TNT:PC71BM system; whereas for the P3HT:PC61BM system, domain structure is critical.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- DOE Contract Number:
- AC02-05CH11231
- OSTI ID:
- 1393119
- Journal Information:
- MRS Communications, Vol. 7, Issue 01; ISSN 2159-6859
- Publisher:
- Materials Research Society - Cambridge University Press
- Country of Publication:
- United States
- Language:
- English
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