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Phonon-enhanced photothermoelectric effect in SrTiO3 ultra-broadband photodetector

文献类型：期刊论文

作者Lu, Xiaowei1,2; Bao, Xinhe1; Jiang, Peng1
刊名NATURE COMMUNICATIONS
出版日期2019-01-11
卷号10页码:7
ISSN号2041-1723
DOI10.1038/s41467-018-07860-0
通讯作者Jiang, Peng(pengjiang@dicp.ac.cn) ; Bao, Xinhe(xhbao@dicp.ac.cn)
英文摘要The self-powered and ultra-broadband photodetectors based on photothermoelectric (PTE) effect are promising for diverse applications such as sensing, environmental monitoring, night vision and astronomy. The sensitivity of PTE photodetectors is determined by the Seebeck coefficient and the rising temperature under illumination. Previous PTE photodetectors mostly rely on traditional thermoelectric materials with Seebeck coefficients in the range of 100 mu VK-1, and array structures with multiple units are usually employed to enhance the photodetection performance. Herein, we demonstrate a reduced SrTiO3 (r-STO) based PTE photodetector with sensitivity up to 1.2 VW-1 and broadband spectral response from 325 nm to 10.67 mu m. The high performance of r-STO PTE photodetector is attributed to its intrinsic high Seebeck coefficient and phonon-enhanced photoresponse in the long wavelength infrared region. Our results open up a new avenue towards searching for novel PTE materials beyond traditional thermoelectric materials for low-cost and high-performance photodetector at room temperature.
WOS关键词2-DIMENSIONAL ELECTRON-GAS ; HIGH-RESPONSIVITY ; PHOTOCURRENT ; FILMS ; CONVERSION ; SURFACE
资助项目National Key Research and Development Program of China[2016YFA0203500] ; Dalian Institute of Chemical Physics ; DICP[ZZBS201608]
WOS研究方向Science & Technology - Other Topics
语种英语
WOS记录号WOS:000455473700006
出版者NATURE PUBLISHING GROUP
资助机构National Key Research and Development Program of China ; National Key Research and Development Program of China ; Dalian Institute of Chemical Physics ; Dalian Institute of Chemical Physics ; DICP ; DICP ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Dalian Institute of Chemical Physics ; Dalian Institute of Chemical Physics ; DICP ; DICP ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Dalian Institute of Chemical Physics ; Dalian Institute of Chemical Physics ; DICP ; DICP ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Dalian Institute of Chemical Physics ; Dalian Institute of Chemical Physics ; DICP ; DICP
源URL[http://cas-ir.dicp.ac.cn/handle/321008/166216]  
专题大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者Bao, Xinhe; Jiang, Peng
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Ctr Excellence Nanosci, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Lu, Xiaowei,Bao, Xinhe,Jiang, Peng. Phonon-enhanced photothermoelectric effect in SrTiO3 ultra-broadband photodetector[J]. NATURE COMMUNICATIONS,2019,10:7.
APA Lu, Xiaowei,Bao, Xinhe,&Jiang, Peng.(2019).Phonon-enhanced photothermoelectric effect in SrTiO3 ultra-broadband photodetector.NATURE COMMUNICATIONS,10,7.
MLA Lu, Xiaowei,et al."Phonon-enhanced photothermoelectric effect in SrTiO3 ultra-broadband photodetector".NATURE COMMUNICATIONS 10(2019):7.

入库方式： OAI收割

来源：大连化学物理研究所

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