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

Wisnu Tantyo Hadmojo, Febrian Tri Adhi Wibowo, Du Yeol Ryu, In Hwan Jung, Sung Yeon Jang

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)

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/ITIC 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).

Original languageEnglish
Pages (from-to)32939-32945
Number of pages7
JournalACS Applied Materials and Interfaces
Volume9
Issue number38
DOIs
Publication statusPublished - 2017 Sep 27

Bibliographical note

Funding Information:
The authors gratefully acknowledge the support from the New and Renewable Energy Core Technology Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP); the granted financial resources from the Ministry of Trade, Industry and Energy, Republic of Korea (no. 20163030013960); the Technology Development Program to Solve Climate Changes of the National Research Foundation (NRF) funded by the Ministry of Science, ICT and Future Planning (NRF-2016M1A2A2940912); the National Research Foundation (NRF) grant funded by the Korean Government (2016R1A5A1012966, 2017R1A2B2009178, and 2017R1C1B2010694); and the Global Scholarship Program for Foreign Graduate Students at Kookmin University in Korea.

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

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