Premium
Inexpensive Hole‐Transporting Materials Derived from Tröger's Base Afford Efficient and Stable Perovskite Solar Cells
Author(s) -
Braukyla Titas,
Xia Rui,
Daskeviciene Maryte,
Malinauskas Tadas,
Gruodis Alytis,
Jankauskas Vygintas,
Fei Zhaofu,
Momblona Cristina,
RoldánCarmona Cristina,
Dyson Paul J.,
Getautis Vytautas,
Nazeeruddin Mohammad Khaja
Publication year - 2019
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201903705
Subject(s) - dopant , inert , materials science , perovskite (structure) , base (topology) , chemical engineering , catalysis , energy conversion efficiency , nanotechnology , combinatorial chemistry , chemistry , doping , organic chemistry , optoelectronics , mathematical analysis , mathematics , engineering
The synthesis of three enamine hole‐transporting materials (HTMs) based on Tröger's base scaffold are reported. These compounds are obtained in a three‐step facile synthesis from commercially available materials without the need of expensive catalysts, inert conditions or time‐consuming purification steps. The best performing material, HTM3, demonstrated 18.62 % PCE in PSCs, rivaling spiro‐OMeTAD in efficiency, and showing markedly superior long‐term stability in non‐encapsulated devices. In dopant‐free PSCs, HTM3 outperformed spiro‐OMeTAD by a factror of 1.6. The high glass‐transition temperature ( T g =176 °C) of HTM3 also suggests promising perspectives in device applications.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom