An intense NIR emission from Ca14Al10Zn6O35:Mn4+, Yb3+via energy transfer for solar spectral converters. Issue 2 (26th November 2015)

• Record Type: Journal Article
• Authors: Lü, Wei; Jiao, Mengmeng; Shao, Baiqi; Zhao, Lingfei; Feng, Yang; You, Hongpeng
• Is Part Of: Dalton transactions. Volume 45:Issue 2(2016)
• Page Start: 466
• Page End: 468
• Publication Date: 2015-11-26
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/c5dt03465e
• Languages: English
• ISSNs: 1477-9226

Abstract

Abstract : We introduce non-rare-earth ion Mn 4+ to transfer energy to Yb 3+, which can exhibit strong near-infrared luminescence. Abstract : To date, most current reports on the development and optimization of solar spectral converters have described the utilization of energy transfer among rare-earth ions. Here, we introduce non-rare-earth ion Mn 4+ to transfer energy to Yb 3+, which can exhibit strong near-infrared luminescence. It can harvest UV-blue photons and exhibits intense NIR emission of Yb 3+ around 1000 nm, perfectly matching the maximum spectral response of Si solar cells. It demonstrates for the first time that efficient energy transfer occurs with a decrease in the excited state lifetime and red photoluminescence (PL) from Mn 4+ with increasing Yb 3+ concentration. These results demonstrate that the Mn 4+ ions can be an efficient and direct sensitizer harvesting UV-blue photons. It could provide new avenues for developing harvesting Si-based solar cells.