Calculations of Some Doping Nanostructurations and Patterns Improving the Functionality of High-Temperature Superconductors for Bolometer Device Applications
Autor: | Carlos Montero-Orille, Martín M. Botana, Manuel V. Ramallo, Jose C. Verde, Alberto S. Viz |
---|---|
Přispěvatelé: | Universidade de Santiago de Compostela. Departamento de Física Aplicada, Universidade de Santiago de Compostela. Departamento de Física de Partículas |
Rok vydání: | 2019 |
Předmět: |
Materials science
High-temperature superconductivity superconducting devices General Chemical Engineering Photodetector nanostructured and microstructured superconductors 01 natural sciences Article 010305 fluids & plasmas law.invention lcsh:Chemistry Condensed Matter::Materials Science high temperature superconductors Operating temperature law Condensed Matter::Superconductivity 0103 physical sciences Nanostructured Materials nanostructured materials General Materials Science Superconducting Devices 010306 general physics Superconductivity Resistive touchscreen business.industry Doping Bolometer High Temperature Superconductors Photodetectors Bolometers lcsh:QD1-999 Nanostructured And Microstructured Superconductors Optoelectronics photodetectors Condensed Matter::Strongly Correlated Electrons business Order of magnitude bolometers |
Zdroj: | Nanomaterials Volume 10 Issue 1 Minerva. Repositorio Institucional de la Universidad de Santiago de Compostela instname Nanomaterials, Vol 10, Iss 1, p 97 (2020) |
ISSN: | 2079-4991 |
Popis: | We calculate the effects of doping nanostructuration and the patterning of thin films of high-temperature superconductors (HTS) with the aim of optimizing their functionality as sensing materials for resistive transition-edge bolometer devices (TES). We focus, in particular, on spatial variations of the carrier doping into the CuO 2 layers due to oxygen off-stoichiometry, (that induce, in turn, critical temperature variations) and explore following two major cases of such structurations: First, the random nanoscale disorder intrinsically associated to doping levels that do not maximize the superconducting critical temperature our studies suggest that this first simple structuration already improves some of the bolometric operational parameters with respect to the conventional, nonstructured HTS materials used until now. Secondly, we consider the imposition of regular arrangements of zones with different nominal doping levels (patterning) we find that such regular patterns may improve the bolometer performance even further. We find one design that improves, with respect to nonstructured HTS materials, both the saturation power and the operating temperature width by more than one order of magnitude. It also almost doubles the response of the sensor to radiation. |
Databáze: | OpenAIRE |
Externí odkaz: |