A simple 3,4-ethylenedioxythiophene based hole-transporting material for perovskite solar cells

A simple 3,4-ethylenedioxythiophene based hole-transporting material for perovskite solar cells

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-k...

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Bibliographic Details
Main Authors: Mhaisalkar, Subodh Gautam, Li, Hairong, Fu, Kunwu, Hagfeldt, Anders, Grätzel, Michael, Grimsdale, Andrew C.
Other Authors: Energy Research Institute @ NTU (ERI@N)
Format: Article
Language:English
Published: 2014
Subjects:
DRNTU::Engineering::Materials::Photonics and optoelectronics materials
Online Access:https://hdl.handle.net/10356/99894
http://hdl.handle.net/10220/19645
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Institution: Nanyang Technological University
Language: English
Description
Summary: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(N,N-di-p-methoxyphenylamine)-9,9′-spirobifluorene (spiro-OMeTAD). This is the first heterocycle-containing material achieving >10 % efficiency in such devices, and has great potential to replace the expensive spiro-OMeTAD given its much simpler and cheaper synthesis.

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