A Simple 3, 4‐Ethylenedioxythiophene Based Hole‐Transporting Material for Perovskite Solar Cells1. (13th March 2014)

• Record Type: Journal Article
• Authors: Li, Hairong; Fu, Kunwu; Hagfeldt, Anders; Grätzel, Michael; Mhaisalkar, Subodh G.; Grimsdale, Andrew C.
• Is Part Of: Angewandte Chemie. Volume 126:Number 16(2014)
• Page Start: 4169
• Page End: 4172
• Publication Date: 2014-03-13
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/ange.201310877
• Languages: English
• ISSNs: 0044-8249

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>We report a novel electron‐rich molecule based on 3, 4‐ethylenedioxythiophene (H101). When used as the hole‐transporting layer in a perovskite‐based solar cell, the power‐conversion efficiency reached 13.8 % under AM 1.5G solar simulation. This result is comparable with that obtained using the well‐known hole transporting material 2, 2′, 7, 7′‐tetrakis(<italic>N</italic>, <italic>N</italic>‐di‐<italic>p</italic>‐methoxyphenylamine)‐9, 9′‐spirobifluorene (spiro‐OMeTAD). This is the first heterocycle‐containing material achieving &gt;10 % efficiency in such devices, and has great potential to replace the expensive spiro‐OMeTAD given its much simpler and cheaper synthesis.</p> </abstract>