Al2O3:Cr3+/tellurite glass composites: An efficient light converter for silicon solar cell. Issue 9 (November 2015)

• Record Type: Journal Article
• Authors: Han, Boning; Yang, Yanmin; Wu, Jianhong; Wei, Jun; Li, Zhiqiang; Mai, Yaohua
• Is Part Of: Ceramics international. Volume 41:Issue 9(2015)Part B
• Page Start: 12267
• Page End: 12272
• Publication Date: 2015-11
• Subjects: Tellurite glass -- Nanowire -- Solar cell; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2015.06.050
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: Al2 O3 :Cr 3+ nanocrystals have been developed as spectral converters for improving silicon cell photovoltaic conversion efficiency. In the Al2 O3 lattice, Cr 3+ ions act as broadband spectral acceptors by absorbing UV–vis (320–670 nm) photons, which are effectively converted into the strong red emission centered at around 696 nm, indicating Al2 O3 :Cr 3+ can be a good material for overcoming the so-called spectral mismatch in the silicon solar cell. The Al2 O3 :Cr 3+ nanocrystals are successfully introduced into tellurite glass to form transparent composites with good optical performance which can be characterized by photoluminescence (PL) spectra. These tellurite glass composites open a brand new field for the research of improving silicon solar cell photovoltaic conversion efficiency.