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Application of a Tetra‐TPD‐Type Hole‐Transporting Material Fused by a Tröger's Base Core in Perovskite Solar Cells
Author(s) -
Braukyla Titas,
Xia Rui,
Malinauskas Tadas,
Daskeviciene Maryte,
Magomedov Artiom,
Kamarauskas Egidijus,
Jankauskas Vygintas,
Fei Zhaofu,
Roldán-Carmona Cristina,
Momblona Cristina,
Nazeeruddin Mohammad Khaja,
Dyson Paul J.,
Getautis Vytautas
Publication year - 2019
Publication title -
solar rrl
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.544
H-Index - 37
ISSN - 2367-198X
DOI - 10.1002/solr.201900224
Subject(s) - perovskite (structure) , dopant , materials science , energy conversion efficiency , base (topology) , tetra , core (optical fiber) , thermal stability , optoelectronics , nanotechnology , chemical engineering , composite material , chemistry , doping , mathematical analysis , mathematics , medicinal chemistry , engineering
One of the obstacles to the commercialization of perovskite solar cells (PSCs) is the high price and morphological instability of the most common hole‐transporting material (HTM) Spiro‐OMeTAD. Herein, a novel HTM, termed V1160 , based on four N,N ′‐bis(3‐methylphenyl)‐ N,N ′‐diphenylbenzidine (TPD)‐type fragments, fused by a Tröger's base core, is synthesized and successfully applied in PSCs. Investigation of the optical, thermal, and photoelectrical properties shows that V1160 is a suitable candidate for application as an HTM in PSCs. A promising power conversion efficiency (PCE) of over 18% is demonstrated, which is only slightly lower than that of Spiro‐OMeTAD. Moreover, V1160 ‐based devices exhibit improved performances in dopant‐free configurations and superior stability. Favorable morphological properties in combination with a simple synthesis make V1160 and related materials promising for HTM applications.