Synthesis of Silicon Carbide Powder Using Recovered Silicon from Solar Waste Silicon Wafer

Yoonjoo Lee; Oh-Kyu Kwon; Ju-Hyeong Sun; Geun-Yong Jang; Joon-Chul Choi; Wooteck Kwon

doi:10.7844/kirr.2022.31.5.52

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2022 Vol.31, Issue 5 Preview Page Next Page

Research Paper

Synthesis of Silicon Carbide Powder Using Recovered Silicon from Solar Waste Silicon Wafer 태양광 폐실리콘 웨이퍼 회수 실리콘을 활용한 탄화규소 분말 합성

31 October 2022. pp. 52-58

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Abstract

Silicon carbide powder was prepared from carbon black and silicon recovered from waste solar panels. In the solar power generation market, the number of crystalline silicon modules exceeds 90%. As the expiration date of a photovoltaic module arrives, the development of technology for recovering and utilizing silicon is very important from an environmental and economic point of view. In this study, silicon was recovered as silicon carbide from waste solar panels: 99.99% silicon powder was recovered through purification from a 95.74% purity waste silicon wafer. To examine the synthesis characteristics of SiC powder, purified 99.99% silicon powder and carbon powder were mixed and heat-treated (1,300, 1,400 and 1,500 °C) in an Ar atmosphere. The characteristics of silicon and silicon carbide powders were analyzed using particle size distribution analyzer, XRD, SEM, ICP, FT-IR, and Raman analysis.

Keywords

solar waste panel

silicon

purification

heat treatment

silicon carbide powder

태양광 폐실리콘 웨이퍼에서 회수한 실리콘과 카본블랙을 활용하여 탄화규소 분말을 제조하였다. 태양광 발전시장에서 결정질 실리콘 모듈이 90% 이상을 차지한다. 태양광 모듈의 사용기한이 도래함에 따라 환경과 경제적인 측면에서 실리콘을 회수하고 활용하는 기술은 매우 중요하다. 본 연구에서는 태양광 폐패널에서 회수한 실리콘을 탄화규소 원료로 활용하기 위하여, 순도 95.74% 폐실리콘 웨이퍼로부터 정제과정을 거쳐 99.99% 실리콘 분말을 회수하였다. 탄화규소 분말 합성특성을 살펴보기 위하여, 정제된 99.99% 실리콘 분말과 탄소분말을 혼합한 후, Ar 분위기에서 열처리(1,300℃, 1,400℃, 1,500℃)과정을 수행하였다. 실리콘과 탄화규소 분말의 특성을 입도분포, XRD, SEM, ICP, FT-IR 및 Raman 분석기를 사용하여 분석하였다.

키워드

태양광 폐패널

실리콘

정제

열처리

탄화규소 분말

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Information

Publisher :The Korean Institute of Resources Recycling
Publisher(Ko) :한국자원리싸이클링학회
Journal Title :Resources Recycling
Journal Title(Ko) :자원리싸이클링
Volume : 31
No :5
Pages :52-58
Received Date : 2022-09-09
Revised Date : 2022-09-21
Accepted Date : 2022-09-26
DOI :https://doi.org/10.7844/kirr.2022.31.5.52

Resources RecyclingISSN:2765-3439(Print) 2765-3447(Online)한국자원리싸이클링학회

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