Please use this identifier to cite or link to this item: https://ktisis.cut.ac.cy/handle/10488/14120
Title: High mobility, hole transport materials for highly efficient PEDOT:PSS replacement in inverted perovskite solar cells
Authors: Neophytou, Marios 
Griffiths, Jack 
Fraser, James 
Nielsen, Christian B.
Kirkus, Mindaugas 
McCulloch, Iain
Chen, Hu 
Major Field of Science: Engineering and Technology
Field Category: Mechanical Engineering;Materials Engineering
Keywords: Perovskite Solar Cell;Lead Bromide;Formamidine
Issue Date: 2017
Source: Journal of Materials Chemistry C, 2017, vol. 5, no. 20, pp. 4940-4945
Volume: 5
Issue: 20
Start page: 4940
End page: 4945
Journal: Journal of Materials Chemistry C 
Abstract: © 2017 The Royal Society of Chemistry. Perovskite solar cells are one of the most promising photovoltaic technologies due to their rapid increase in power conversion efficiency (3.8% to 21.1%) in a very short period of time and the relative ease of their fabrication compared to traditional inorganic solar cells. One of the drawbacks of perovskite solar cells is their limited stability in non-inert atmospheres. In the inverted device configuration this lack of stability can be attributed to the inclusion of poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) as the hole transporting layer. Herein we report the synthesis of two new triarylamine based hole transporting materials, synthesised from readily available starting materials. These new materials show increased power conversion efficiencies, of 13.0% and 12.1%, compared to PEDOT:PSS (10.9%) and exhibit increased stability achieving lifetimes in excess of 500 hours. Both molecules are solution processible at low temperatures and show potential for low cost, scalable production of large scale perovskite solar cells on flexible substrates.
ISSN: 2050-7534
DOI: 10.1039/c7tc00858a
Rights: © The Royal Society of Chemistry
Type: Article
Affiliation : King Abdullah University of Science and Technology 
University of Glasgow 
Queen Mary University of London 
Imperial College London 
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