Open AccessInfrared quantum-cutting analysis of Er0.3Gd0.7VO4 crystal for solar cell application
Author(s) -
Xiaobo Chen,
Guojian Yang,
Chunlin Zhang,
Yongliang Li,
Liao Hong-bo,
Yunzhi Zhang,
Luan Chen,
Yafei Wang
Publication year - 2010
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.59.8191
Subject(s) - infrared , excited state , quantum , materials science , quantum efficiency , solar cell , optoelectronics , photon , crystal (programming language) , optics , physics , atomic physics , quantum mechanics , computer science , programming language
Recently the infrared quantum cutting has achieved an exciting development in enhancing the efficiency of solar cell. The infrared quantum cutting of Er0.3Gd0.7VO4 crystalline is studied in the present paper. It is found that the approximate quantum cutting efficiencies of 1532.5 nm 4I13/2→4I15/2 fluorescence, when the 2H11/2 and 4G11/2 levels are excited, are about 178.55% and 177.61% respectively. Especially, effective three-photon and four-photon infrared quantum cuttings of Er0.3Gd0.7VO4 crystalline excited by visible and near-violet light are found for the first time in the present paper. An interesting "peak - valley" conversion phenomenon in the excitation spectrum is also observed. It is also the first time for us to find the first-order infrared quantum cutting based single species Er3+ ion for Er0.3Gd0.7VO4 crystalline.