Rational strategy for power doubling of monolithic multijunction Ⅲ-Ⅴ photovoltaics by accommodating attachable scattering waveguides

Shin Hyung Lee; Hyo Jin Kim; Jae-Hyun Kim; Gwang Yeol Park; Sun-Kyung Kim; Sung-Min Lee

doi:10.1038/s41377-024-01628-6

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Rational strategy for power doubling of monolithic multijunction Ⅲ-Ⅴ photovoltaics by accommodating attachable scattering waveguides

Original Articles

- Rational strategy for power doubling of monolithic multijunction Ⅲ-Ⅴ photovoltaics by accommodating attachable scattering waveguides
- Light: Science & Applications Vol. 13, Issue 11, Pages: 2734-2744(2024)
- Affiliations：
  
  1.School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
  2.Optoelectronic Convergence Research Center, Korea Photonics Technology Institute, Gwangju 61007, Republic of Korea
  3.Department of Applied Physics, Kyung Hee University, Yongin 17104, Republic of Korea
  4.Department of Electrical Engineering, Hanyang University, Seoul 04763, Republic of Korea
  5.Division of Materials Science and Engineering, Hanyang University, Seoul 04763, Republic of Korea
- Author bio：
  
  Sung-Min Lee (sungminlee@hanyang.ac.kr)
- Funds：
- DOI：10.1038/s41377-024-01628-6
  CLC：
- Received：08 May 2024，
  
  Revised：02 September 2024，
  
  Accepted：2024-09-05，
  
  Published Online：20 September 2024，
  
  Published：30 November 2024
- Accepted：
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Lee, S. H. et al. Rational strategy for power doubling of monolithic multijunction Ⅲ-Ⅴ photovoltaics by accommodating attachable scattering waveguides. Light: Science & Applications, 13, 2734-2744 (2024).
DOI：

Lee, S. H. et al. Rational strategy for power doubling of monolithic multijunction Ⅲ-Ⅴ photovoltaics by accommodating attachable scattering waveguides. Light: Science & Applications, 13, 2734-2744 (2024). DOI： 10.1038/s41377-024-01628-6.

摘要

Abstract

While waveguide-based light concentrators offer significant advantages

their application has not been considered an interesting option for assisting multijunction or other two-terminal tandem solar cells. In this study

we present a simple yet effective approach to enhancing the output power of transfer-printed multijunction InGaP/GaAs solar cells. By utilizing a simply combinable waveguide concentrator featuring a coplanar waveguide with BaSO

Mie scattering elements

we enable the simultaneous absorption of dire

ctly illuminated solar flux and indirectly waveguided flux. The deployment of cells is optimized for front-surface photon collection in monofacial cells. Through systematic comparisons across various waveguide parameters

supported by both experimental and theoretical quantifications

we demonstrate a remarkable improvement in the maximum output power of a 26%-efficient cell

achieving an enhancement of ~93% with the integration of the optimal scattering waveguide. Additionally

a series of supplementary tests are conducted to explore the effective waveguide size

validate enhancements in arrayed cell module performance

and assess the drawbacks associated with rear illumination. These findings provide a comprehensive understanding of our proposed approach towards advancing multi-junction photovoltaics.

关键词

Keywords

references

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