A low-temperature synthesis of strongly thermochromic W and Sr co-doped VO2 films with a low transition temperature

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F24%3A43973134" target="_blank" >RIV/49777513:23520/24:43973134 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

A low-temperature synthesis of strongly thermochromic W and Sr co-doped VO2 films with a low transition temperature

Popis výsledku v původním jazyce

We report a scalable sputter technique for the deposition of strongly thermochromic W and Sr co-doped VO2 films onto 170 nm thick Y-stabilized ZrO2 layers on a 1 mm thick conventional soda-lime glass at a low substrate temperature of 320 °C (the usual temperatures used in other laboratories are 450 °C and higher) and without any substrate bias voltage. The W and Sr co-doped VO2 films have been synthesized using a controlled high-power impulse magnetron sputtering of a V-W target combined with a simultaneous pulsed DC magnetron sputtering of a Sr target in argon-oxygen gas mixtures. The fundamental principles of this technique and the structure (X-ray diffraction), optical (spectrophotometry and spectroscopic ellipsometry), and electrical (four-point probe system) properties of the thermochromic films are presented.The results are important for further improvement of this scalable sputter deposition technique for a low-temperature synthesis of high-performance durable thermochromic VO2-based multilayer coatings designed for smart-window applications.

Název v anglickém jazyce

A low-temperature synthesis of strongly thermochromic W and Sr co-doped VO2 films with a low transition temperature

Popis výsledku anglicky

We report a scalable sputter technique for the deposition of strongly thermochromic W and Sr co-doped VO2 films onto 170 nm thick Y-stabilized ZrO2 layers on a 1 mm thick conventional soda-lime glass at a low substrate temperature of 320 °C (the usual temperatures used in other laboratories are 450 °C and higher) and without any substrate bias voltage. The W and Sr co-doped VO2 films have been synthesized using a controlled high-power impulse magnetron sputtering of a V-W target combined with a simultaneous pulsed DC magnetron sputtering of a Sr target in argon-oxygen gas mixtures. The fundamental principles of this technique and the structure (X-ray diffraction), optical (spectrophotometry and spectroscopic ellipsometry), and electrical (four-point probe system) properties of the thermochromic films are presented.The results are important for further improvement of this scalable sputter deposition technique for a low-temperature synthesis of high-performance durable thermochromic VO2-based multilayer coatings designed for smart-window applications.

Druh

O - Ostatní výsledky

CEP obor

—

OECD FORD obor

20506 - Coating and films

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů