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Diketopyrrolopyrrole‐Based and Tetracyano‐Bridged Small Molecules for Bulk Heterojunction Organic Solar Cells
Author(s) -
Patil Yuvraj,
Misra Rajneesh
Publication year - 2018
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201701493
Subject(s) - tetracyanoethylene , organic solar cell , small molecule , cycloaddition , acetylene , materials science , polymer solar cell , photochemistry , molecule , ring (chemistry) , energy conversion efficiency , fullerene , chemistry , optoelectronics , organic chemistry , catalysis , biochemistry , composite material , polymer
Research on bulk heterojunction organic solar cells has rapidly grown over the past two decades, and device performance has reached power conversion efficiencies over 13 %. In this focus review, we highlight design strategies used for the development of diketopyrrolopyrrole‐ and tetracyano‐based molecular donors. We also describe how tetracyano‐bridged non‐fullerene acceptors can be developed by a click‐type [2+2]‐cycloaddition–electrocyclic ring‐opening reaction of acetylene‐bridged small molecules with tetracyanoethylene by simple modification.