Near-Infrared Harvesting Fullerene-Free All-Small-Molecule Organic Solar Cells Based on Porphyrin Donors
- Authors
- Hadmojo, Wisnu Tantyo; Yim, Dajeong; Sinaga, Septy; Lee, Wooseop; Ryu, Du Yeol; Jang, Woo-Dong; Jung, In Hwan; Jang, Sung-Yeon
- Issue Date
- Apr-2018
- Publisher
- AMER CHEMICAL SOC
- Keywords
- Organic solar cell; Porphyrin donor; All-small-molecule solar cell; Fullerene free; Panchromatic absoprtion
- Citation
- ACS SUSTAINABLE CHEMISTRY ENGINEERING, v.6, no.4, pp.5306 - 5313
- Indexed
- SCIE
SCOPUS
- Journal Title
- ACS SUSTAINABLE CHEMISTRY ENGINEERING
- Volume
- 6
- Number
- 4
- Start Page
- 5306
- End Page
- 5313
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/17652
- DOI
- 10.1021/acssuschemeng.8b00010
- ISSN
- 2168-0485
- Abstract
- Fullerene-free all-small-molecule organic photovoltaic cells (SM-OPVs) have attracted considerable attention because of well-defined molecular structures with low batch-to batch variation. Porphyrin derivatives have recently emerged as one of the promising conjugated building blocks for the small molecule (SM) donors. Herein, we first report fullerene-free SM-OPVs employing porphyrin-based donors. Three zinc porphyrin (P-zn)-based SM donors, which have strong bimodal absorption in the visible region and near-infrared region, are synthesized. Constructing bulk-heterojunction (BHJ) active layers using the P-zn donors and a SM acceptor, IDIC, which have complementary absorption, achieved panchromatic photon-to-current-conversion from 400 to 900 nm. The manipulation of side chains in the Pin donors considerably influenced the molecular ordering and nanomorphology of the BHJ active layers. P-zn-based fullerene-free SM-OPV devices with promising power conversion efficiency of 6.13% were achieved, which also offers crucial guidance for developing fullerene-free OPVs using porphyrin derivatives.
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