The influence of thermal effect induced by Yb³⁺ sensitization on color regulation in Gd₂O₃:Yb³⁺, Er³⁺ upconversion phosphors

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• 作者：Tao Pang ; ^{tpang@126.com" class="auth_mail" title="E-mail the corresponding author} ; Wen-hui Lu
• 关键词：Upconversion ; Color tuning ; Lanthanide ; Thermal effect
• 刊名：Ceramics International
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：43
• 期：1
• 页码：1061-1065
• 全文大小：734 K

文摘

Color-tunable upconversion luminescence of Gd₂O₃:Yb³⁺, Er³⁺ is achieved by controlling the doping concentration of Yb³⁺. The research of upconversion luminescence properties indicates that the blue shift coexists with the red shift for the main wavelength in the process of increasing the Yb³⁺ concentration. The blue shift depends on the thermal effect induced by Yb³⁺ sensitization, while the red shift is determined by the energy transfer between Yb³⁺(Er³⁺) and Er³⁺. Through depressing the thermal effect, an enhanced red shift of main wavelength is achieved.