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  4. A dopant free linear acene derivative as a hole transport material for perovskite pigmented solar cells
 
research article

A dopant free linear acene derivative as a hole transport material for perovskite pigmented solar cells

Kazim, Samrana
•
Ramos, F. Javier
•
Gao, Peng  
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2015
Energy & Environmental Science

A solution processable, molecular organic semiconductor, 6,13-bis(triisopropylsilylethynyl) pentacene (TIPS-pentacene), was employed as hole transport material (HTM) in mesoscopic methylammonium lead iodide perovskite solar cells. TIPS-pentacene is potentially cost effective, exhibits a relatively high hole mobility and has a favourable HOMO level with respect to the valence band of perovskite. The photovoltaic performance of perovskite solar cells with TIPS-pentacene as HTM in its pristine form and with a dopant/additive was investigated and compared with classical spiro-OMeTAD based devices. Through solvoneering (solvent engineering) and concentration optimization TIPS-pentacene in its pristine form gave a very competitive power conversion efficiency (PCE) of 11.8% under 1 sun conditions. The open circuit voltage of 0.92 V and a short circuit current density of 20.86 mA cm(-2) for the devices with pristine TIPS-pentacene were higher compared to doped spiro-OMeTAD based devices under similar conditions, thus paving the use of TIPS-pentacene as an alternative to an expensive spiro-OMeTAD for large area integration in perovskite based solar cells.

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Type
research article
DOI
10.1039/c5ee00599j
Web of Science ID

WOS:000355985700020

Author(s)
Kazim, Samrana
Ramos, F. Javier
Gao, Peng  
Nazeeruddin, Mohammad Khaja  
Graetzel, Michael  
Ahmad, Shahzada
Date Issued

2015

Publisher

Royal Soc Chemistry

Published in
Energy & Environmental Science
Volume

8

Issue

6

Start page

1816

End page

1823

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
GMF  
LPI  
Available on Infoscience
September 28, 2015
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/119155
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