当前位置：
X-MOL 学术
›
Phys. Status Solidi. Rapid Res. Lett.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Rectifying Characteristics of the Perovskite Oxide La1−xSrxMnO3/Nb‐0.7 wt%‐Doped SrTiO3 Heterojunction
Physica Status Solidi-Rapid Research Letters ( IF 2.5 ) Pub Date : 2020-10-13 , DOI: 10.1002/pssr.202000360 Dan Zhang 1 , Huayi Liu 1 , Shuyu Wang 1 , Qiuting Yuan 1 , Xu Li 1 , Wei Zhang 1 , Guangsheng Fu 1 , Yan‐Fang Zhang 2 , Beiyi Zhu 2 , Guoyi Dong 1 , Fengjin Xia 3 , Yueju Fu 1
Physica Status Solidi-Rapid Research Letters ( IF 2.5 ) Pub Date : 2020-10-13 , DOI: 10.1002/pssr.202000360 Dan Zhang 1 , Huayi Liu 1 , Shuyu Wang 1 , Qiuting Yuan 1 , Xu Li 1 , Wei Zhang 1 , Guangsheng Fu 1 , Yan‐Fang Zhang 2 , Beiyi Zhu 2 , Guoyi Dong 1 , Fengjin Xia 3 , Yueju Fu 1
Affiliation
|
The influence of Sr‐doping on the rectifying characteristics of the perovskite oxide La1−xSrxMnO3/Nb‐0.7 wt%‐doped SrTiO3(LSMO/NSTO) heterojunction is studied systematically. Clear rectification characteristics are observed in the Au/LSMO/NSTO heterojunction with Sr‐doping rate of 0.1–0.6 at 300 K. The threshold voltage and Schottky barrier height increase linearly with the increase in Sr‐doping. Combined with first‐principles calculations, it is found that the variation of Sr‐doping concentration directly leads to a change in the LSMO work function, then a change in barrier height, and finally a change in the threshold voltage and rectification characteristics. Ultimately, it is proved that the rectification characteristics of the perovskite metal oxide heterostructure are consistent with the potential barrier mechanism of semiconductors. The rectifying characteristics of the perovskite oxide p–n junction can be well modulated by the change in energy band structure caused by Sr‐doping. These results lay a foundation for further understanding of the rectification characteristics of the perovskite oxide heterostructure and improving its application value.
中文翻译：
钙钛矿氧化物La1-xSrxMnO3 / Nb-0.7 wt％-掺杂的SrTiO3异质结的整流特性
Sr掺杂对钙钛矿氧化物La 1− x Sr x MnO 3 /Nb-0.7 wt％掺杂SrTiO 3的整流特性的影响（LSMO / NSTO）异质结得到了系统的研究。在300 K时，Sr掺杂率为0.1–0.6的Au / LSMO / NSTO异质结中观察到了清晰的整流特性。阈值电压和肖特基势垒高度随Sr掺杂的增加而线性增加。结合第一性原理计算，发现Sr掺杂浓度的变化直接导致LSMO功函数的变化，然后导致势垒高度的变化，最后导致阈值电压和整流特性的变化。最终证明钙钛矿型金属氧化物异质结构的整流特性与半导体的势垒机理一致。锶掺杂引起的能带结构变化可以很好地调节钙钛矿氧化物PN结的整流特性。这些结果为进一步了解钙钛矿氧化物异质结构的整流特性并提高其应用价值奠定了基础。
更新日期：2020-10-13
中文翻译：
钙钛矿氧化物La1-xSrxMnO3 / Nb-0.7 wt％-掺杂的SrTiO3异质结的整流特性
Sr掺杂对钙钛矿氧化物La 1− x Sr x MnO 3 /Nb-0.7 wt％掺杂SrTiO 3的整流特性的影响（LSMO / NSTO）异质结得到了系统的研究。在300 K时，Sr掺杂率为0.1–0.6的Au / LSMO / NSTO异质结中观察到了清晰的整流特性。阈值电压和肖特基势垒高度随Sr掺杂的增加而线性增加。结合第一性原理计算，发现Sr掺杂浓度的变化直接导致LSMO功函数的变化，然后导致势垒高度的变化，最后导致阈值电压和整流特性的变化。最终证明钙钛矿型金属氧化物异质结构的整流特性与半导体的势垒机理一致。锶掺杂引起的能带结构变化可以很好地调节钙钛矿氧化物PN结的整流特性。这些结果为进一步了解钙钛矿氧化物异质结构的整流特性并提高其应用价值奠定了基础。
京公网安备 11010802027423号