In:
Angewandte Chemie, Wiley, Vol. 131, No. 33 ( 2019-08-12), p. 11388-11394
Abstract:
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.
Type of Medium:
Online Resource
ISSN:
0044-8249
,
1521-3757
DOI:
10.1002/ange.v131.33
DOI:
10.1002/ange.201903705
Language:
English
Publisher:
Wiley
Publication Date:
2019
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