Issue 28, 2024, Issue in Progress

Textured anti-reflection and down-conversion composite functional films for high-efficiency solar cells

Abstract

Advances in high-efficiency solar cells introduce photon management challenges, including the difficult texturization of flat surfaces and low photon utilization at short wavelengths. While bifacial crystalline silicon solar cells have a front pyramid structure and SiNx layers reduce reflections, managing photons on the flat backside remains a challenge. To enhance light utilization, a soft nanoimprint technique was utilized to create pyramid micro-structured polyurethane films doped with europium (Eu3+) complex. These films, which possess anti-reflection and down-conversion properties, can be applied externally to various high-efficiency solar cells without compromising electrical performance. Research on the backside of bifacial PERC solar cells revealed that the optimal composite functional film increases the integrated current by 5.70%, with a 1.27% gain from down-conversion effects. This specialized film presents a novel approach to interface matching for different types of solar cells.

Graphical abstract: Textured anti-reflection and down-conversion composite functional films for high-efficiency solar cells

Article information

Article type
Paper
Submitted
08 May 2024
Accepted
17 Jun 2024
First published
24 Jun 2024
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2024,14, 20191-20198

Textured anti-reflection and down-conversion composite functional films for high-efficiency solar cells

S. Jin, S. Wang, H. Feng, D. He, A. Hsu, Z. Du, W. Sun, H. He, C. Shou, S. Sun, D. Yang and L. Wang, RSC Adv., 2024, 14, 20191 DOI: 10.1039/D4RA03397C

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