Interfacial-charge-transfer-induced photochromism of MoO₃@TiO₂ crystalline-core amorphous-shell nanorods

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• 作者：Ning Li^a ; ^d ; Yamei Li^b ; Yijie Zhou^a ; Wenjing Li^a ; Shidong Ji^a ; Heliang Yao^a ; Xun Cao^a ; ^{caoxun2015@gmail.com} ; Ping Jin^a ; ^c ; ^{p-jin@mail.sic.ac.cn}
• 关键词：MoO3@TiO2 ; Core-shell ; Photochromic ; Heterojunction ; Interfacial charge transfer ; The anneal treatment
• 刊名：Solar Energy Materials and Solar Cells
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：160
• 期：Complete
• 页码：116-125
• 全文大小：1757 K
• 卷排序：160

文摘

MoO3@TiO2 core-shell nanorods (MT) show a better photochromic efficiency than MoO3, due to the heterojunction formed. For MT, the proper energy band alignment between the MoO3 and TiO2 can efficiently rectify the charge transfer. The Ti3+ defects in TiO2 increased the carrier concentration and mediated the charge transfer. For MT after annealing, The large interfacial contact area also favored the superior performance.