Impedance spectroscopy of doped ZnO thin films deposited by PLD
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F25%3A00639575" target="_blank" >RIV/68378271:_____/25:00639575 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Impedance spectroscopy of doped ZnO thin films deposited by PLD
Original language description
In this study, we focused on exploring the impact of dopants on ZnO thin films grown by Pulsed Laser Deposition (PLD) on sapphire substrates for potential photodetector applications. Photothermal deflection spectroscopy (PDS) was used to investigate sub-bandgap absorption features and Urbach energy, shedding light on the density of states and structural disorder within the films. Furthermore, photoluminescence (PL) analysis supported the PDS results by showing variations in emission characteristics related to Indium doping. Impedance spectroscopy was then utilized to delve into the electrical behavior of the ZnO films, employing equivalent circuit models to extract crucial parameters like carrier concentration and mobility. Our findings revealed notable changes in optical properties with varying Indium concentration, suggesting a shift in electronic structure and defect states. This integrated approach provided a thorough understanding of the optoelectronic features of ZnO films, indicating that optimized Indium doping could improve photoresponse and charge transport, positioning ZnO as a promising material for advanced photodetector technologies.
Czech name
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Czech description
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Classification
Type
O - Miscellaneous
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů