Fullerene-Free Organic Solar Cells with an Efficiency of 10.2% and an Energy Loss of 0.59 eV Based on a Thieno[3,4-c]Pyrrole-4,6-dione-Containing Wide Band Gap Polymer Donor
- Authors
- Hadmojo, Wisnu Tantyo; Wibowo, Febrian Tri Adhi; Ryu, Du Yeol; Jung, In Hwan; Jang, Sung-Yeon
- Issue Date
- Sep-2017
- Publisher
- AMER CHEMICAL SOC
- Keywords
- organic solar cells; wide band gap polymer; fullerene-free solar cells; complementary absorption; low energy loss
- Citation
- ACS APPLIED MATERIALS & INTERFACES, v.9, no.38, pp.32939 - 32945
- Indexed
- SCIE
SCOPUS
- Journal Title
- ACS APPLIED MATERIALS & INTERFACES
- Volume
- 9
- Number
- 38
- Start Page
- 32939
- End Page
- 32945
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/18788
- DOI
- 10.1021/acsami.7b09757
- ISSN
- 1944-8244
- Abstract
- Although the combination of wide band gap polymer donors and narrow band gap small-molecule acceptors achieved state-of-the-art performance as bulk heterojunction (BHJ) active layers for organic solar cells, there have been only several of the wide band gap polymers that actually realized high-efficiency devices over >10%. Herein, we developed high-efficiency, low-energy-loss fullerene-free organic solar cells using a weakly crystalline wide band gap polymer donor, PBDTTPD-HT, and a nonfullerene small-molecule acceptor, ITIC. The excessive intermolecular stacking of ITIC is efficiently suppressed by the miscibility with PBDTTPD-HT, which led to a well-balanced nanomorphology in the PBDTTPD-HT/ITIG BHJ active films. The favorable optical; electronic, and energetic properties of PBDTTPD-HT with respect to ITIC achieved panchromatic photon-to-current conversion with a remarkably low energy loss (0.59 eV).
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