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  4. Additives, Hole Transporting Materials and Spectroscopic Methods to Characterize the Properties of Perovskite Films
 
research article

Additives, Hole Transporting Materials and Spectroscopic Methods to Characterize the Properties of Perovskite Films

Ummadisingu, Amita  
•
Seo, Ji-Youn  
•
Stojanovic, Marko  
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2017
Chimia

The achievement of high efficiency and high stability in perovskite solar cells (PSCs) requires optimal selection and evaluation of the various components. After a brief introduction to the perovskite materials and their historical evolution, the first part is devoted to the hole transporting material (HTM), between photoelectrode and dark counter electrode. The basic requirements for an efficient HTM are stated. Subsequently, the most used HTM, spiro-OMeTAD, is compared to alternative HTMs, both small-molecule size species and electronically conducting polymers. The second part is devoted to additives related to the performance of the perovskite light-absorbing material itself. These are related either to the modification of the composition of the material itself or to the optimization of the morphology during the perovskite preparation stage, and their effect is in the enhancement of the power conversion efficiency, the long-term stability, or the reproducibility of the properties of the PSCs. Finally, a number of spectroscopic methods based on the UV-Vis part of the electromagnetic spectrum useful for characterizing the different perovskite material types are described in the last part of this review.

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Type
research article
DOI
10.2533/chimia.2017.754
Web of Science ID

WOS:000419077000002

Author(s)
Ummadisingu, Amita  
Seo, Ji-Youn  
Stojanovic, Marko  
Zakeeruddin, Shaik M.  
Gratzel, Michael  
Hagfeldt, Anders  
Vlachopoulos, Nick  
Saliba, Michael  
Date Issued

2017

Publisher

Schweizerische Chemische Gesellschaft

Published in
Chimia
Volume

71

Issue

11

Start page

754

End page

761

Subjects

Crystal engineering

•

Hole conductor

•

Perovskite solar cell

•

Solar cell efficiency

•

Photoluminescence spectroscopy

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

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LPI  
Available on Infoscience
January 15, 2018
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/143836
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