Hole transporting materials for perovskite solar cells: a chemical approach

Photovoltaic solar cells based on perovskites have come to the forefront in science by achieving exceptional power conversion efficiencies (PCEs) in less than a decade of research. This "still young" generation of solar cells is currently rivalling, in PCEs, well-established technologies,...

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Published in:Chemical Society reviews 2018-11, Vol.47 (23), p.8541-8571
Main Authors: Urieta-Mora, Javier, García-Benito, Inés, Molina-Ontoria, Agustín, Martín, Nazario
Format: Article
Language:English
Subjects:
Cadmium telluride
Cadmium tellurides
Charge materials
Chemical synthesis
Design engineering
Energy conversion efficiency
Intermetallic compounds
Organic chemistry
Perovskites
Photovoltaic cells
Solar cells
Tellurides
Transportation
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Summary:Photovoltaic solar cells based on perovskites have come to the forefront in science by achieving exceptional power conversion efficiencies (PCEs) in less than a decade of research. This "still young" generation of solar cells is currently rivalling, in PCEs, well-established technologies, such as cadmium telluride (CdTe) and silicon. Further improvements in device stability by means of innovative materials are yet to come, with technology becoming closer to meeting the market requirements. Emerging from this groundbreaking discovery, a great number of charge transporting materials have flourished, which is particularly true for hole transporting materials (HTMs). The huge number of molecules prepared stem from design and engineering of a wide variety of new and also chemically modified old molecules where organic synthesis has played a fundamental role. In this review, the contribution of chemistry through those synthetic protocols used for producing new and innovative HTMs from relatively simple organic molecules is presented in a rational and systematic manner. The variety and impact of synthetic strategies followed, the structure-property relationship and stability, conductivity and device performance are highlighted from a chemical viewpoint. In this review, the contribution of chemistry towards producing new and innovative hole-transporting materials for highly efficient perovskite solar cells is presented in a rational and systematic manner.
ISSN:0306-0012
1460-4744
DOI:10.1039/c8cs00262b