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3d-non-fused-carbazole-structure
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3D asymmetric carbozole hole transporting materials for perovskite solar cells
, Article Solar Energy ; Volume 189 , 2019 , Pages 404-411 ; 0038092X (ISSN) ; Heydari, M ; Ahangar, H ; Mohammadi, H ; Taherian Fard, H ; Taghavinia, N ; Samadpour, M ; Tajabadi, F ; Sharif University of Technology
Elsevier Ltd
2019
Abstract
Carbazole compounds are p-type hole-transporting materials (HTMs) useful for perovskite solar cells (PSCs). In this work, we developed a new class of carbazol based HTMs; non-fused 3-D asymmetric structures (S14 and S12) as HTM of PSCs. To the best of our knowledge, there is no report on non-fused HTMs with a high glass transition temperature (Tg = 165 °C), which reduces crystallization and suppresses grain boundaries in glassy film, resulting in long-term durability. Experimental results show that tuning the carbazole moiety in S14 structure has a constructive influence on geometrical alignment, hole mobility, hydrophobicity, stability as well as efficiency. The resultant power conversion...