Facile Synthesis of a Furan-Arylamine Hole-Transporting Material for High-Efficiency, Mesoscopic Perovskite Solar Cells.
A novel hole-transporting molecule (F101) based on a furan core has been synthesized by means of a short, high-yielding route. When used as the hole-transporting material (HTM) in mesoporous methylammonium lead halide perovskite solar cells (PSCs) it produced better device performance than the current state-of-the-art HTM 2,2',7,7'-tetrakis-(N,N-di-p-methoxyphenylamine)-9,9'-spirobifluorene (spiro-OMeTAD). The F101-HTM-based device exhibited both slightly higher Jsc (19.63 vs. 18.41 mA cm(-2) ) and Voc (1.1 vs. 1.05 V) resulting in a marginally higher power conversion efficiency (PCE) (13.1 vs. 13 %). The steady-state and time-resolved photoluminescence show that F101 has significant charge extraction ability. The simple molecular structure, short synthesis route with high yield and better performance in devices makes F101 an excellent candidate for replacing the expensive spiro-OMeTAD as HTM in PSCs.
Energy Research Institute, Interdisciplinary Graduate School, Nanyang Technological University (Singapore).
Anurag
A
Krishna
Energy Research Institute @ NTU (ERI@N), Nanyang Technological University, 50 Nanyang Drive, Singapore 637553 (Singapore).
Dharani
D
Sabba
Division of Physics and Applied Physics, Nanyang Technological University, 21 Nanyang Link, Singapore 637371 (Singapore).
Jun
J
Yin
Energy Research Institute @ NTU (ERI@N), Nanyang Technological University, 50 Nanyang Drive, Singapore 637553 (Singapore).
Annalisa
A
Bruno
Energy Research Institute @ NTU (ERI@N), Nanyang Technological University, 50 Nanyang Drive, Singapore 637553 (Singapore).
Pablo P
PP
Boix
School of Materials Science and Engineering, Nanyang Technological University, Nanyang Avenue, Singapore 637553 (Singapore).
Yang
Y
Gao
Energy Research Institute @ NTU (ERI@N), Nanyang Technological University, 50 Nanyang Drive, Singapore 637553 (Singapore).
Herlina A
HA
Dewi
Division of Physics and Applied Physics, Nanyang Technological University, 21 Nanyang Link, Singapore 637371 (Singapore).
Gagik G
GG
Gurzadyan
Division of Physics and Applied Physics, Nanyang Technological University, 21 Nanyang Link, Singapore 637371 (Singapore).
Cesare
C
Soci
Energy Research Institute @ NTU (ERI@N), Nanyang Technological University, 50 Nanyang Drive, Singapore 637553 (Singapore). Subodh@ntu.edu.sg.
Subodh G
SG
Mhaisalkar
School of Materials Science and Engineering, Nanyang Technological University, Nanyang Avenue, Singapore 637553 (Singapore). acgrimsdale@ntu.edu.sg.
Andrew C
AC
Grimsdale
heterocycles; hole transport; perovskite; solar cells