Facile Synthetic Route of a Solution-Processable, Thieno[3,4-c]pyrrolo-4,6-dione-Based Conjugated Small Molecule and Control of the Optoelectronic Properties via Processing Additivesopen access
- Authors
- Kwon, Obum; Lim, Jihyun; Park, Jin Kuen; Wang, Dong Hwan
- Issue Date
- Dec-2018
- Publisher
- MDPI
- Keywords
- thieno[3,4-c]pyrrole-4,6-dione; small molecule bulk heterojunction solar cell; processing additive; morphology; low-bandgap conjugated molecules
- Citation
- APPLIED SCIENCES-BASEL, v.8, no.12
- Journal Title
- APPLIED SCIENCES-BASEL
- Volume
- 8
- Number
- 12
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/18660
- DOI
- 10.3390/app8122644
- ISSN
- 2076-3417
2076-3417
- Abstract
- In this study, a new type of low-bandgap small molecule has been synthesized with a thieno[3,4-c]pyrrole-4,6-dione (TPD) derivative for application in bulk heterojunction (BJH) solar cells. The series of solar cells were fabricated by blending the TPD-based small molecule (M1) and [6,6]-phenyl C-71 butyric acid methyl ester (PC71BM). In order to optimize the performance of solar cells, the nanoscale morphologies of the BHJ layers were controlled via processing additives with 1,8-diiodooctane (DIO) and 1-chloronaphthalene (CN). Therefore, we demonstrated that the use of CN successively suppressed molecular aggregation and demonstrated suitable phase separation, in addition to increasing the power conversion efficiency from 0.36% to 1.86%.
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Collections - College of ICT Engineering > School of Integrative Engineering > 1. Journal Articles
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