Temperature-dependent photovoltage response in La0.9Li0.1MnO3/SrTiO3-Nb heterojunction induced by a low intensity pulse laser

Jianyuan Wang; Jianying Bai; Hui Xing; Shuanhu Wang; Min Wang; Kexin Jin; Changle Chen

doi:10.1016/j.ssc.2016.12.012

Temperature-dependent photovoltage response in La_0.9Li_0.1MnO₃/SrTiO₃-Nb heterojunction induced by a low intensity pulse laser

Jianyuan Wang
, Jianying Bai
, Hui Xing
, Shuanhu Wang
, Min Wang
, Kexin Jin
, Changle Chen

School of Physical Science and Technology

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

The photovoltage response under low intensity pulse laser (473 nm) in the perovskite manganite p-n junction La_0.9Li_0.1MnO₃/SrTiO₃:Nb is investigated within a wide temperature range. The maximum photovoltage occurs at around the metal-insulator transition temperature (T_MI 250 K) of La_0.9Li_0.1MnO₃ rather than the lowest temperature, which indicates that the low density charge induced by a weak light can be significantly affected by the leakage rather than the thermal carriers. Moreover, the time response of photovoltage shows distinct temperature-dependent and light intensity-dependent regularities in the temperature regions T<T_MI and T>T_MI respectively. The mechanisms are discussed according to the charge transport and magnetic phase transition of La_0.9Li_0.1MnO₃.

Original language	English
Pages (from-to)	35-38
Number of pages	4
Journal	Solid State Communications
Volume	251
DOIs	https://doi.org/10.1016/j.ssc.2016.12.012
State	Published - 1 Feb 2017

Keywords

A. Manganite
C. Heterojunction
D. Photovoltage

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10.1016/j.ssc.2016.12.012

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@article{38ee5cd640a84445aab5e16d654f5741,

title = "Temperature-dependent photovoltage response in La0.9Li0.1MnO3/SrTiO3-Nb heterojunction induced by a low intensity pulse laser",

abstract = "The photovoltage response under low intensity pulse laser (473 nm) in the perovskite manganite p-n junction La0.9Li0.1MnO3/SrTiO3:Nb is investigated within a wide temperature range. The maximum photovoltage occurs at around the metal-insulator transition temperature (TMI 250 K) of La0.9Li0.1MnO3 rather than the lowest temperature, which indicates that the low density charge induced by a weak light can be significantly affected by the leakage rather than the thermal carriers. Moreover, the time response of photovoltage shows distinct temperature-dependent and light intensity-dependent regularities in the temperature regions TMI and T>TMI respectively. The mechanisms are discussed according to the charge transport and magnetic phase transition of La0.9Li0.1MnO3.",

keywords = "A. Manganite, C. Heterojunction, D. Photovoltage",

author = "Jianyuan Wang and Jianying Bai and Hui Xing and Shuanhu Wang and Min Wang and Kexin Jin and Changle Chen",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier Ltd",

year = "2017",

month = feb,

day = "1",

doi = "10.1016/j.ssc.2016.12.012",

language = "英语",

volume = "251",

pages = "35--38",

journal = "Solid State Communications",

issn = "0038-1098",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Temperature-dependent photovoltage response in La0.9Li0.1MnO3/SrTiO3-Nb heterojunction induced by a low intensity pulse laser

AU - Wang, Jianyuan

AU - Bai, Jianying

AU - Xing, Hui

AU - Wang, Shuanhu

AU - Wang, Min

AU - Jin, Kexin

AU - Chen, Changle

PY - 2017/2/1

Y1 - 2017/2/1

N2 - The photovoltage response under low intensity pulse laser (473 nm) in the perovskite manganite p-n junction La0.9Li0.1MnO3/SrTiO3:Nb is investigated within a wide temperature range. The maximum photovoltage occurs at around the metal-insulator transition temperature (TMI 250 K) of La0.9Li0.1MnO3 rather than the lowest temperature, which indicates that the low density charge induced by a weak light can be significantly affected by the leakage rather than the thermal carriers. Moreover, the time response of photovoltage shows distinct temperature-dependent and light intensity-dependent regularities in the temperature regions TMI and T>TMI respectively. The mechanisms are discussed according to the charge transport and magnetic phase transition of La0.9Li0.1MnO3.

AB - The photovoltage response under low intensity pulse laser (473 nm) in the perovskite manganite p-n junction La0.9Li0.1MnO3/SrTiO3:Nb is investigated within a wide temperature range. The maximum photovoltage occurs at around the metal-insulator transition temperature (TMI 250 K) of La0.9Li0.1MnO3 rather than the lowest temperature, which indicates that the low density charge induced by a weak light can be significantly affected by the leakage rather than the thermal carriers. Moreover, the time response of photovoltage shows distinct temperature-dependent and light intensity-dependent regularities in the temperature regions TMI and T>TMI respectively. The mechanisms are discussed according to the charge transport and magnetic phase transition of La0.9Li0.1MnO3.

KW - A. Manganite

KW - C. Heterojunction

KW - D. Photovoltage

UR - https://www.scopus.com/pages/publications/85006972857

U2 - 10.1016/j.ssc.2016.12.012

DO - 10.1016/j.ssc.2016.12.012

M3 - 文章

AN - SCOPUS:85006972857

SN - 0038-1098

VL - 251

SP - 35

EP - 38

JO - Solid State Communications

JF - Solid State Communications

ER -

Temperature-dependent photovoltage response in La_0.9Li_0.1MnO₃/SrTiO₃-Nb heterojunction induced by a low intensity pulse laser

Abstract

Keywords

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