Colored ultrathin hybrid photovoltaics with high quantum efficiency

Kyu-Tae Lee; Jae Yong Lee; Sungyong Seo; L Jay Guo

doi:10.1038/lsa.2014.96

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Colored ultrathin hybrid photovoltaics with high quantum efficiency

Original Articles

- Colored ultrathin hybrid photovoltaics with high quantum efficiency
- Light: Science & Applications Vol. 3, Issue 4, (2014)
- Affiliations：
  
  Department of Electrical Engineering and Computer Science, The University of Michigan, Ann Arbor, Michigan 48109, USA
- Author bio：
  
  Professor LJ Guo, Department of Electrical Engineering and Computer Science, The University of Michigan, Ann Arbor, Michigan 48109, USA Email: guo@umich.edu
- Funds：
- DOI：10.1038/lsa.2014.96
  CLC：
- Published：2014-12，
  
  Published Online：24 October 2014，
  
  Received：06 April 2014，
  
  Revised：01 August 2014，
  
  Accepted：03 August 2014
- Accepted：
Scan QR Code
Lee, K. T. et al. Colored ultrathin hybrid photovoltaics with high quantum efficiency. Light: Science & Applications, 3, e215 (2014).
DOI：

Lee, K. T. et al. Colored ultrathin hybrid photovoltaics with high quantum efficiency. Light: Science & Applications, 3, e215 (2014). DOI： 10.1038/lsa.2014.96.

摘要

Abstract

Most current

solar panels are fabricated

via

complex processes using expensive semiconductor materials

and they are rigid and heavy with a dull

black appearance. As a result of their non-aesthetic appearance and weight

they are primarily installed on rooftops to minimize their negative impact on building appearance. The large surfaces and interiors of modern buildings are not efficiently utilized for potential electric power generation. Here

we introduce dual-function solar cells based on ultrathin dopant-free amorphous silicon embedded in an optical cavity that not only efficiently extract the photogenerated carriers but also display distinctive colors with the desired angle-insensitive appearances. Light-energy-harvesting colored signage is demonstrated. Furthermore

a cascaded photovoltaics scheme based on tunable spectrum splitting can be employed to increase power efficiency by absorbing a broader band of light energy. This study pioneers a new approach to architecturally compatible and decorative thin-film photovoltaics.

关键词

Keywords

color filtersnanocavitiesorganic–inorganic nanostructuresphotovoltaicsspectrum splitting

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