Experimental investigations for recycling of silicon and glass from waste photovoltaic modules
This paper reports a new procedure for the recovery of resources from waste photovoltaic modules. The tempered glass was recovered using organic solvents. The metal impurities were removed by applying a chemical etching solution on the surface of the PV cell. We offer a much more efficient approach for recycling PV cells than the conventional method. The highest yield of silicon recovered was 86% when the PV cell was placed in the chemical etching solution for 20 min, along with the surfactant, which accounted for 20% of the total solution's weight at room temperature. This investigation showed that a high yield of pure silicon with purity of 99.999% could be obtained. The recovered pure silicon from waste PV modules would be contributed to the solution of several problems such as the supply of silicon, manufacturing costs, and end-of-life management of PV modules.
Year of publication: |
2012
|
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Authors: | Kang, Sukmin ; Yoo, Sungyeol ; Lee, Jina ; Boo, Bonghyun ; Ryu, Hojin |
Published in: |
Renewable Energy. - Elsevier, ISSN 0960-1481. - Vol. 47.2012, C, p. 152-159
|
Publisher: |
Elsevier |
Subject: | Photovoltaic module | Ethylene vinyl acetate | Etching solution | Silicon | Recycling |
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