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Paper by Dr. Nguyen Cong Thanh, a researcher, Energy and Environment Area, has been selected as a journal front cover.

Paper by Dr. Nguyen Cong Thanh, a researcher in Ohdaira Lab. of Energy and Environment Area, has been selected as a journal front cover.

■Publication
Journal of Materials Research

■Author
Cong Thanh Nguyen, Koichi Koyama, Huynh Thi Cam Tu, Keisuke Ohdaira, and Hideki Matsumura

■Title
Texture size control by mixing glass microparticles with alkaline solution for crystalline silicon solar cells

■Abstract
In this paper, we show a novel method to obtain small size textures usable in crystalline silicon (c-Si) solar cells. SiO2-based glass microparticles are mixed with a conventional KOH-based alkaline solution for making the textures. Using this mixing method, the texture size can be drastically reduced from 10 to ≤2 µm (0.3-2 µm). In addition, the process time and c-Si loss during the texture formation are reduced from 25 to 2 min and from 20 to 2 µm, respectively. Thus, the process is applicable to c-Si with thickness down to 50 µm. High-quality passivation showing the effective minority carrier lifetimes (τeff) larger than several ms and effective antireflection coating are possible on the new textures. The process is named "microparticle-assisted texturing (MPAT) process", and its features are also demonstrated.

Reference : https://doi.org/10.1557/jmr.2018.151

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June 21, 2018

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