journal article·2018-02-01Open access

Highly-efficient low cost anisotropic wet etching of silicon wafers for solar cells application

Sami Iqbal, Li-Jiang Zhang, Xing-Chang Fu, Dan Su, Huan-Li Zhou, Weiping Wu, Tong Zhang

AIP Advances· Volume 8· Issue 2

Abstract

In this work, a novel aqueous etching solution was investigated for texturization of silicon substrates. Nearly 30% of incident light is reflected from the surface of crystalline silicon due to its high refractive index. Surface texturization is an efficient practice to reduce surface reflection by enhancing light trapping. Newly formulated etching solution was evaluated for optical reflection, surface morphology and hydrophilicity of silicon substrates. Amazingly, experimental results demonstrate lowest optical reflectance, improved surface morphology as well as enhanced periodicity of the resulting pyramids. A remarkably lowest surface reflectance of 9.94% was achieved. Meanwhile, addition of IPA in the solution plays a major part in improving hydrophilicity of the silicon substrates.
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Research context

OpenAlex topics: Nanowire Synthesis and Applications · Thin-Film Transistor Technologies · Silicon Nanostructures and Photoluminescence

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Joint International Research Laboratory of Information Display and Visualization, School of Electronic Science and Engineering, Southeast University 1 , Nanjing 210096, P. R. China

Suzhou Key Laboratory of Metal Nano-Optoelectronic Technology, Suzhou Research Institute of Southeast University 2 , Suzhou 215123, P. R. China

Key Laboratory of Micro-Inertial Instrument and Advanced Navigation Technology, Ministry of Education, and School of Instrument Science and Engineering, Southeast University 3 , Nanjing 210096, P. R. China

School of Computer Science, Mathematics and Engineering, City University of London 4 , Northampton Square, London EC1V 0HB, United Kingdom

Funding

National Natural Science Foundation of China · Ministry of Science and Technology of the People's Republic of China

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