ALL-ANGLED LIGHT-TRAPPED MICRO-NANO HYBRID TEXTUREDMONO-Si PERC SOLAR CELLS

Zou Shuai; Wu Chengkun; Xu Lei; Zhang Xiaohong; Su Xiaodong

doi:10.19912/j.0254-0096.tynxb.2020-1121

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Acta Energiae Solaris Sinica ›› 2022, Vol. 43 ›› Issue (7) : 134-139. DOI: 10.19912/j.0254-0096.tynxb.2020-1121

ALL-ANGLED LIGHT-TRAPPED MICRO-NANO HYBRID TEXTUREDMONO-Si PERC SOLAR CELLS

Zou Shuai¹, Wu Chengkun¹, Xu Lei¹, Zhang Xiaohong², Su Xiaodong¹

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Abstract

In this work, the nano-scaled structures have been uniformly fabricated on alkali-etched micron-scaled pyramid-structures by Ag metal-catalyzed chemical etching technique. The deposition characteristic of Ag nanoparticles on micron pyramid-structures and its influence on the uniformity of nanostructure were studied, as well as on the performances of the mono-Si PERC （Passivated Emitter and Rear Contact） solar cells. The results show that the distribution uniformity of Ag nanoparticles deposited on the micron pyramid-structures can be improved by using polyvinylpyrrolidone as an additive. The prepared nanostructures are uniformly distributed on the micron pyramid-structures and are easy to be passivated by the subsequent SiN_x. The average efficiency of the fabricated mono-Si PERC cells is 22.22%, which is 0.46% higher than that of the control group without the additive. The all-angled light trapping property for silicon solar cells can be realized by forming the unique nano-on-micron texture （NOM-texture）, which can meet the requirements of Building Integrated Photovoltaics such as new Solar Roof on the high efficiency and quasi-omnidirectional appearance of the cells.

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monocrystalline silicon / solar cells / texturing / metal-catalyzed chemical etching / polyvinylpyrrolidone / all-angled light-trapping

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Zou Shuai, Wu Chengkun, Xu Lei, Zhang Xiaohong, Su Xiaodong. ALL-ANGLED LIGHT-TRAPPED MICRO-NANO HYBRID TEXTUREDMONO-Si PERC SOLAR CELLS[J]. Acta Energiae Solaris Sinica. 2022, 43(7): 134-139 https://doi.org/10.19912/j.0254-0096.tynxb.2020-1121

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