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Updated: Sep 11, 2025

Synthesis of Non-uniformly Pr-doped SrTiO3 Ceramics and Their Thermoelectric Properties

Synthesis of Non-uniformly Pr-doped SrTiO3 Ceramics and Their Thermoelectric Properties

Published on: August 15, 2015

Er 和 Nb 杂 SrTiO 材料的光学和热电特性之间的关系₃

Guibin Zhang¹, Xin Wang¹, Yaqian Du¹

¹Key Laboratory of Biophysics and Bioinformatics of Inner Mongolia Autonomous Region at Inner Mongolia University, School of Physical Science and Technology, Inner Mongolia University, 235 West University Road, Hohhot, Inner Mongolia 010021, China.

ACS applied materials & interfaces

|August 18, 2025

概括

本研究探讨了被光子激发的电子与声子相互作用,以调节酸 (SrTiO3) 中的热电和光学特性. 和氧空缺 (Vo) 增强光热电转换,实现60%的ZT改进.

科学领域:

材料科学材料科学材料科学
固态物理固态物理
能源转换能源转换

背景情况:

酸 (SrTiO3) 具有显著的热电和光学特性,通常是独立研究的.
了解光学吸收和热电性能之间的相互作用对于先进的能源应用至关重要.

研究的目的:

基于光子激发的电子与声子相互作用,研究SrTiO3中热电和光学性质的调节机制.
通过Er doping和氧空缺 (Vo) 来提高光热电转换效率.

主要方法:

基于光子激发的电子与声子相互作用的拟议监管机制.
引入了Er兴奋剂来增强光子吸收和光激发电子生成.
嵌入氧气空缺 (Vo) 改善电子 - 声子相互作用和能量转换.

主要成果:

通过Er doping和Vo引入,SrTiO3.3中的热电特性得到了协同优化.
在Sr0.85Er0.15Ti0.9Nb0.1O3 (Vo) 中,在1073K时达到0.32的最大热电功率 (ZT),提高了60%.
在980nm激光激发下,证明了显著的光热电转换,电输出功率为3.85μW.

结论:

由光子激发的电子-声子相互作用是调节SrTiO3.3光热电特性的关键.
Er-Nb与氧空缺 (Vo) 的配合有效地提高了 SrTiO3.3 中的光电能量转换.
这项工作为开发用于光热电应用的高吸收性SrTiO3基材料提供了基础.

关键词:

ErNb配角的SrTiO3是有三角形的.基于 SrTiO3 的热电材料.有空缺的氧气位光热电的特性光热电的特性上升转换的发光效应

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