Benzodithiazole‐Based Hole‐Transporting Material for Efficient Perovskite Solar Cells

• DOI: 10.1002/ajoc.201800490
• Publication Date: 2018-09-25T02:20:15Z
• Authors: T. Swetha; Md. Akhtaruzzaman; Towhid H. Chowdhury; Nowshad Amin; Ashraful Islam; Takeshi Noda; Hari M. Upadhyaya; Surya Prakash Singh
• Keywords: 01 natural sciences; 7. Clean energy; 0104 chemical sciences

Abstract We have designed and synthesized a family of three novel benzodithiazole‐based hole‐transporting materials (HTMs) named as BTT‐TPA, BTT‐OMe BTT‐Me . These new HTMs are characterized by using 1 H, 13 C NMR, FTIR, elemental analysis, UV‐Vis spectrophotometer, cyclic voltammetry. The photovoltaic performances these were successfully evaluated in perovskite solar cells (PSCs). Consequently, the PSCs based on BTT‐TPA , showed J sc 12.81 mA cm −2 11.87 13.85 V oc 0.88 V, 0.83 0.87 FF 0.62, 0.63, 0.63 overall power conversion efficiency (η) 6.99%, 6.20% 7.44%, respectively. easy synthetic route purification technique provides viability future development.