Design and Synthesis of Imidazole Coupled Diphenylamine Derivatives as Hole-transport Materials for Perovskite Solar Cells
발표자
()
초록
내용
Hole transport materials are the key material for preparing high performance perovskite solar cells (PSCs). Herein we present three novel and efficient compounds, DPA-TPIC-OMe, 3DPA-TPIC, 3DMDPA-TPIC are synthesis via Buchwald-Hartwig amination reaction and used as hole transport materials for perovskite solar cell. The relationships between molecular structure, electronic properties of the semiconductor and eventually photovoltaic performance are investigated. Further, DPA-TPIC-OMe exhibits a deeper highest occupied molecular orbital (HOMO) energy lever of -5.27 eV, high hole mobility and high glass transition temperature (Tg) than spiro-OMeTAD indicating a potential HTM for PSCs.