Microstructure Evolution During Monocrystalline Silicon Textured in K3PO4 and K2SiO3 Solution

DOI

10.2991/lemcs-15.2015.235How to use a DOI?

Keywords

Microstructure; Texturization; Monocrystalline silicon; Size; Reflectivity

Abstract

The pyramid construction was formed by different K3PO4 concentrations and texturing time. The pyramid microstructure evolution on monocrystalline silicon surface has been studied. Researchers found that the pyramid is approximately 1.3 m in mean size and almost covered the silicon surface with 6wt% K3PO4 for 10min. The pyramid mean size is approximately 1.2 m and uniform with 26wt% K3PO4 for 5min. Texturing time has a crucial influence on the pyramid size and K3PO4 concentration has a significant influence on the etching rate. With the K3PO4 concentration increasing, the pyramid size becomes smaller, and the etching rate reduces. Furthermore, the average reflectivity of silicon surface has also been studied. For the textured silicon surface, the average reflectivity obtained in the optimal etching conditions (6wt% K3PO4+ 2wt% K2SiO3, 85 , and 20 min) is close to 11.6%. When texturing time is 5 min, the lowest average reflectivity is about 17.2% with different K3PO4 concentrations. This technique provides an alternative way for production high-efficiency silicon solar cells.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Ruizhi Luo
AU  - Shiqing Man
AU  - Junjun Ma
AU  - Yaqin Wang
PY  - 2015/07
DA  - 2015/07
TI  - Microstructure Evolution During Monocrystalline Silicon Textured in K3PO4 and K2SiO3 Solution
BT  - Proceedings of the International Conference on Logistics, Engineering, Management and Computer Science
PB  - Atlantis Press
SP  - 1181
EP  - 1185
SN  - 1951-6851
UR  - https://doi.org/10.2991/lemcs-15.2015.235
DO  - 10.2991/lemcs-15.2015.235
ID  - Luo2015/07
ER  -