Demonstration of enhanced absorption in thin film Si solar cells with textured photonic crystal back reflector
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- L. Zeng
- Massachusetts Institute of Technology 1 Department of Materials Science and Engineering, , Cambridge, Massachusetts 02139, USA
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- P. Bermel
- Massachusetts Institute of Technology 2 Department of Physics, , Cambridge, Massachusetts 02139, USA
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- Y. Yi
- Massachusetts Institute of Technology 1 Department of Materials Science and Engineering, , Cambridge, Massachusetts 02139, USA
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- B. A. Alamariu
- Massachusetts Institute of Technology 3 Microsystems Technology Laboratories, , Cambridge, Massachusetts 02139, USA
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- K. A. Broderick
- Massachusetts Institute of Technology 3 Microsystems Technology Laboratories, , Cambridge, Massachusetts 02139, USA
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- J. Liu
- Massachusetts Institute of Technology 1 Department of Materials Science and Engineering, , Cambridge, Massachusetts 02139, USA
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- C. Hong
- Massachusetts Institute of Technology 1 Department of Materials Science and Engineering, , Cambridge, Massachusetts 02139, USA
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- X. Duan
- Massachusetts Institute of Technology 1 Department of Materials Science and Engineering, , Cambridge, Massachusetts 02139, USA
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- J. Joannopoulos
- Massachusetts Institute of Technology 2 Department of Physics, , Cambridge, Massachusetts 02139, USA
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- L. C. Kimerling
- Massachusetts Institute of Technology 1 Department of Materials Science and Engineering, , Cambridge, Massachusetts 02139, USA
Description
<jats:p>Herein the authors report the experimental application of a powerful light trapping scheme, the textured photonic crystal (TPC) backside reflector, to thin film Si solar cells. TPC combines a one-dimensional photonic crystal as a distributed Bragg reflector with a diffraction grating. Light absorption is strongly enhanced by high reflectivity and large angle diffraction, as designed with scattering matrix analysis. 5 μm thick monocrystalline thin film Si solar cells integrated with TPC were fabricated through an active layer transfer technique. Measured short circuit current density Jsc was increased by 19%, compared to a theoretical prediction of 28%.</jats:p>
Journal
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- Applied Physics Letters
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Applied Physics Letters 93 (22), 221105-, 2008-12-01
AIP Publishing
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Details 詳細情報について
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- CRID
- 1360574094357843072
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- ISSN
- 10773118
- 00036951
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- Data Source
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- Crossref
