Graphene/Ba0.7Sr0.3TiO3 heterostructure for uncooled infrared detectors

被引：4
|
作者：
Li, Ze [1 ]
Zhao, Yu [1 ,2 ]
Li, Weili [1 ]
Peng, Yazhou [1 ]
Zhao, Wenyue [1 ]
Wang, Zhao [1 ]
Shi, Lei [1 ]
Fei, Weidong [1 ]
机构：
[1] Harbin Inst Technol, Sch Mat Sci & Engn, 611,92 Xidazhi St, Harbin 150001, Peoples R China
[2] Harbin Inst Technol, Space Environm Simulat Res Infrastruct, Harbin 150001, Peoples R China
来源：
MATERIALS LETTERS | 2021年 / 305卷
基金：
中国国家自然科学基金;
关键词：
Graphene/Ba0; 7Sr0.3TiO3; heterostructure; Big pi bond; Phase transition; Ferroelectrics; Raman;
D O I：
10.1016/j.matlet.2021.130686
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This paper proposes an uncooled infrared detector based on a heterostructure comprising Ba0.7Sr0.3TiO3 (BST) ceramic and graphene. The relationship between heterojunction current and ambient temperature was determined to further analyze the effect of BST phase transition on the graphene resistance. The current at 0.1 V increased by 0.3% and 4% as the temperature was increased to 27 and 31 degrees C, respectively. Thus, the rate of change within the phase transition temperature range was 0.9%/degrees C. These insights serve as a foundation for the development of graphene/ferroelectric heterostructures for application in uncooled infrared detectors.
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页数：3
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