Synergistic enhancement of electric heating and infrared radiation characteristics in La0.7Sr0.3Al0.5Mn0.5O3@Pt thin film enabling electro-thermal-optical conversion
{"title":"Synergistic enhancement of electric heating and infrared radiation characteristics in La0.7Sr0.3Al0.5Mn0.5O3@Pt thin film enabling electro-thermal-optical conversion","authors":"Xiaoyun Sun, Haigang Hou, Dongliang Zhang, Liuxu Yu, Jian Yang, Guiwu Liu, Junlin Liu, Guanjun Qiao","doi":"10.1007/s10854-024-13418-2","DOIUrl":null,"url":null,"abstract":"<div><p>Non dispersive infrared gas sensor represents the leading trend in gas sensor technology with the infrared light source serving as a critical component. The working principle of infrared light sources involves energy conversions of electricity to heat and thermal to light, which is independently carried out by the electric heating layer and the infrared radiation layer. The complex multi-film structure of infrared light sources leads to high heat transfer loss, long response time, and increased heat capacity. This study defines a coral-like porous thin film containing Pt nanoparticles loaded on La<sub>0.7</sub>Sr<sub>0.3</sub>Al<sub>0.5</sub>Mn<sub>0.5</sub>O<sub>3</sub> (La<sub>0.7</sub>Sr<sub>0.3</sub>Al<sub>0.5</sub>Mn<sub>0.5</sub>O<sub>3</sub>@Pt), created from the concept of multi-functional materials. This thin film exhibits outstanding electric heating and infrared radiation properties. The co-doping of A-site and B-site of LaAlO<sub>3</sub> made the La<sub>0.7</sub>Sr<sub>0.3</sub>Al<sub>0.5</sub>Mn<sub>0.5</sub>O<sub>3</sub> thin film not only possessed certain oxygen vacancies and lattice distortion, but also formed a coral-like micro-porous structure. The loading of Pt nanoparticles possesses high electrical conductivity and localized surface plasmon resonance effect, further nanostructured the coral-like micro-porous structure of La<sub>0.7</sub>Sr<sub>0.3</sub>Al<sub>0.5</sub>Mn<sub>0.5</sub>O<sub>3</sub> thin film. Benefit from the synergistic effect of the co-doping of Sr<sup>2+</sup> and Mn<sup>2+</sup>and loading of Pt nanoparticles, the resistance of the La<sub>0.7</sub>Sr<sub>0.3</sub>Al<sub>0.5</sub>Mn<sub>0.5</sub>O<sub>3</sub>@Pt thin film was reduced by 9 orders of magnitude. Meanwhile, its electric heating performance was improved by a factor of 11.29 compared to the LaAlO<sub>3</sub> thin film. Moreover, the infrared absorptivity of La<sub>0.7</sub>Sr<sub>0.3</sub>Al<sub>0.5</sub>Mn<sub>0.5</sub>O<sub>3</sub>@Pt thin film exhibited in the range of 2.5–25 μm was ~ 96.7%, which is 1.60 times higher than that of LaAlO<sub>3</sub> thin film, indicating a significant improvement in the infrared radiation performance.</p></div>","PeriodicalId":646,"journal":{"name":"Journal of Materials Science: Materials in Electronics","volume":null,"pages":null},"PeriodicalIF":2.8000,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materials Science: Materials in Electronics","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s10854-024-13418-2","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
Non dispersive infrared gas sensor represents the leading trend in gas sensor technology with the infrared light source serving as a critical component. The working principle of infrared light sources involves energy conversions of electricity to heat and thermal to light, which is independently carried out by the electric heating layer and the infrared radiation layer. The complex multi-film structure of infrared light sources leads to high heat transfer loss, long response time, and increased heat capacity. This study defines a coral-like porous thin film containing Pt nanoparticles loaded on La0.7Sr0.3Al0.5Mn0.5O3 (La0.7Sr0.3Al0.5Mn0.5O3@Pt), created from the concept of multi-functional materials. This thin film exhibits outstanding electric heating and infrared radiation properties. The co-doping of A-site and B-site of LaAlO3 made the La0.7Sr0.3Al0.5Mn0.5O3 thin film not only possessed certain oxygen vacancies and lattice distortion, but also formed a coral-like micro-porous structure. The loading of Pt nanoparticles possesses high electrical conductivity and localized surface plasmon resonance effect, further nanostructured the coral-like micro-porous structure of La0.7Sr0.3Al0.5Mn0.5O3 thin film. Benefit from the synergistic effect of the co-doping of Sr2+ and Mn2+and loading of Pt nanoparticles, the resistance of the La0.7Sr0.3Al0.5Mn0.5O3@Pt thin film was reduced by 9 orders of magnitude. Meanwhile, its electric heating performance was improved by a factor of 11.29 compared to the LaAlO3 thin film. Moreover, the infrared absorptivity of La0.7Sr0.3Al0.5Mn0.5O3@Pt thin film exhibited in the range of 2.5–25 μm was ~ 96.7%, which is 1.60 times higher than that of LaAlO3 thin film, indicating a significant improvement in the infrared radiation performance.
期刊介绍：
The Journal of Materials Science: Materials in Electronics is an established refereed companion to the Journal of Materials Science. It publishes papers on materials and their applications in modern electronics, covering the ground between fundamental science, such as semiconductor physics, and work concerned specifically with applications. It explores the growth and preparation of new materials, as well as their processing, fabrication, bonding and encapsulation, together with the reliability, failure analysis, quality assurance and characterization related to the whole range of applications in electronics. The Journal presents papers in newly developing fields such as low dimensional structures and devices, optoelectronics including III-V compounds, glasses and linear/non-linear crystal materials and lasers, high Tc superconductors, conducting polymers, thick film materials and new contact technologies, as well as the established electronics device and circuit materials.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
