Efficient planar perovskite solar cells with a conjugated random terpolymer as a novel hole-transporting material. (January 2019)

• Record Type: Journal Article
• Authors: Seo, You-Hyun; Bang, Su-Mi; Lim, Bogyu; Na, Seok-In
• Is Part Of: Dyes and pigments. Volume 160(2019)
• Page Start: 930
• Page End: 935
• Publication Date: 2019-01
• Subjects: Perovskite solar cell -- Hole transporting material -- Conjugated polymer -- Random terpolymer -- Poly (3-hexylthiophene); Dyes and dyeing -- Periodicals; Pigments -- Periodicals; 667.2
• DOI: 10.1016/j.dyepig.2018.09.021
• Languages: English
• ISSNs: 0143-7208

Abstract

Abstract: We introduce that a conjugated random terpolymer (LGC-D013) with N -alkylthieno[3, 4- c ]pyrrole-4, 6-dione (TPD, the acceptor) and benzodithiophene (BDT) and terthiophene (the donor units) can efficiently function as a novel hole-transporting material (HTM) for high-performance planar perovskite solar cells (PeSCs). The roles of the LGC-D013 HTM on PeSC-performances were examined using filed-emission scanning electron microscope, atomic force microscope, photoluminescence, hole mobility, energy-level diagram, and device-resistances. The LGC-D013 based device produced a high power conversion efficiency (PCE) of 12.22%, which was 22% enhancement compared to the reference poly (3-hexylthiophene) (P3HT) based device with a PCE of 9.53%. These results suggest that the random terpolymer LGC-D013 can be considered as an effective HTM to produce a high-efficiency PeSC. Graphical abstract: Image 1 Highlights: A dopant free hole transporting material (HTM), LGC-D013, is introduced in perovskite solar cells (PeSCs). The LGC-D013 shows a high hole mobility and suitable energy-level matching. The LGC-D013 based PeSC provides a higher cell-efficiency than P3HT based PeSC.