Energies (Dec 2023)

Perovskite Solar Cell on Stainless Steel Substrate over 10% Efficiency for Building-Integrated Photovoltaics

  • Solhee Lee,
  • Sang-Won Lee,
  • Soohyun Bae,
  • Jae-Keun Hwang,
  • Wonkyu Lee,
  • Dowon Pyun,
  • Seok-Hyun Jeong,
  • Kyunghwan Kim,
  • Ji-Seong Hwang,
  • Sujin Cho,
  • Donghwan Kim,
  • Yoonmook Kang,
  • Hae-Seok Lee

DOI
https://doi.org/10.3390/en16248061
Journal volume & issue
Vol. 16, no. 24
p. 8061

Abstract

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This study investigated the integration of perovskite solar cells (PSCs) on stainless steel (SS) substrates for application in building-integrated photovoltaics (BIPV). Using advanced atomic force microscopy measurements, we confirmed that enhanced substrate roughness increased the reflectance along an interface. Consequently, a remarkable final efficiency of 11.9% was achieved. Notably, PSCs, known for their exceptional efficiency of 26.1%, can overcome the inherent efficiency limitations of SS-based thin-film solar cells. In this study, a PSC with an efficiency of 14% was fabricated on a flexible SS substrate. This study is a significant step towards advancing sustainable energy solutions for BIPV applications. The global shift towards renewable energy sources has catalyzed intensive research and development efforts, rendering the exploration of alternative materials and manufacturing processes a priority. The success of PSCs on SS substrates underscores their promise to achieve a balance between efficiency and versatility in BIPV solutions. Moreover, our findings reveal that controlling the substrate surface characteristics can significantly enhance the performance of PSCs, offering a pathway toward greater energy efficiency and sustainability in the construction industry.

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