Skip to content

Research at St Andrews

Light harvesting for organic photovoltaics

Research output: Contribution to journalReview article

Author(s)

School/Research organisations

Abstract

The field of organic photovoltaics has developed rapidly over the last 2 decades, and small solar cells with power conversion efficiencies of 13% have been demonstrated. Light absorbed in the organic layers forms tightly bound excitons that are split into free electrons and holes using heterojunctions of electron donor and acceptor materials, which are then extracted at electrodes to give useful electrical power. This review gives a concise description of the fundamental processes in photovoltaic devices, with the main emphasis on the characterization of energy transfer and its role in dictating device architecture, including multilayer planar heterojunctions, and on the factors that impact free carrier generation from dissociated excitons. We briefly discuss harvesting of triplet excitons, which now attracts substantial interest when used in conjunction with singlet fission. Finally, we introduce the techniques used by researchers for characterization and engineering of bulk heterojunctions to realize large photocurrents, and examine the formed morphology in three prototypical blends.
Close

Details

Original languageEnglish
Pages (from-to)796-837
Number of pages42
JournalChemical Reviews
Volume117
Issue number2
Early online date7 Dec 2016
DOIs
Publication statusPublished - 25 Jan 2017

Discover related content
Find related publications, people, projects and more using interactive charts.

View graph of relations

Related by author

  1. Large crystalline domains and enhanced exciton diffusion length enable efficient organic solar cells

    Zhang, Y., Sajjad, M. T., Blaszczyk, O., Parnell, A. J., Ruseckas, A., Serrano, L. A., Cooke, G. & Samuel, I. D. W., 10 Sep 2019, In : Chemistry of Materials. 31, 17, p. 6548-6557

    Research output: Contribution to journalArticle

  2. Enhanced exciton harvesting in a planar heterojunction organic photovoltaic device by solvent vapor annealing

    Zhang, Y., Sajjad, M. T., Blaszczyk, O., Ruseckas, A., Serrano, L. A., Cooke, G. & Samuel, I. D. W., Jul 2019, In : Organic Electronics. 70

    Research output: Contribution to journalArticle

  3. BODIPY derivatives with near infra-red absorption as small molecule donors for bulk heterojunction solar cells

    Marques dos Santos, J., Jagadamma, L. K., Latif, N. M., Ruseckas, A., Samuel, I. D. W. & Cooke, G., 16 May 2019, In : RSC Advances. 9, 27, p. 15410-15423 14 p.

    Research output: Contribution to journalArticle

Related by journal

  1. Recent developments in organoboron chemistry - old dogs, new tricks

    Fyfe, J. W. B. & Watson, A. J. B., 13 Jul 2017, In : Chemical Reviews. 3, 1, p. 31-55 5 p.

    Research output: Contribution to journalReview article

  2. Organic lasers: recent developments on materials, device geometries, and fabrication techniques

    Kuehne, A. J. C. & Gather, M. C., 9 Nov 2016, In : Chemical Reviews. 116, 21, p. 12823-12864 42 p.

    Research output: Contribution to journalReview article

  3. Enzymatic fluorination and biotechnological developments of the fluorinase

    O'Hagan, D. & Deng, H., 28 Jan 2015, In : Chemical Reviews. 115, 2, p. 634-649 16 p.

    Research output: Contribution to journalArticle

  4. Organophosphorus-tellurium chemistry: from fundamentals to applications

    Nordheider, A., Woollins, J. D. & Chivers, T., 23 Sep 2015, In : Chemical Reviews. 115, 18, p. 10378–10406

    Research output: Contribution to journalReview article

ID: 247959408

Top