Origins of infrared transparency in highly conductive perovskite stannate BaSnO3

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F20%3A00536217" target="_blank" >RIV/68378271:_____/20:00536217 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21230/20:00342224

Výsledek na webu

<a href="http://hdl.handle.net/11104/0314037" target="_blank" >http://hdl.handle.net/11104/0314037</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/5.0010322" target="_blank" >10.1063/5.0010322</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Origins of infrared transparency in highly conductive perovskite stannate BaSnO3

Popis výsledku v původním jazyce

Near-infrared absorption in transparent conducting oxides (TCOs) is usually caused by electronic intraband transition at high doping levels. Improved infrared transparency is commonly explained by enhanced drift mobility in these TCOs. Here, an alternative cause behind the high infrared transparency of La-doped barium stannate (LBSO) transparent electrodes is presented. Following the Drude model formalism, we reconstructed spectrally resolved dielectric permittivity for a set of thin films with different free electron concentrations. A comparison of optical properties of LBSO with the tin-doped indium oxide thin films with identical carrier concentrations suggests that the redshift of the screened plasma wavelength for LBSO originates from its large high-frequency dielectric constant of 4.4, one of the highest reported for the s-orbital-based TCOs. Moreover, our measurements confirm an optical mobility significantly higher (>300 cm(2)/V s) than the drift mobility.

Název v anglickém jazyce

Origins of infrared transparency in highly conductive perovskite stannate BaSnO3

Popis výsledku anglicky

Near-infrared absorption in transparent conducting oxides (TCOs) is usually caused by electronic intraband transition at high doping levels. Improved infrared transparency is commonly explained by enhanced drift mobility in these TCOs. Here, an alternative cause behind the high infrared transparency of La-doped barium stannate (LBSO) transparent electrodes is presented. Following the Drude model formalism, we reconstructed spectrally resolved dielectric permittivity for a set of thin films with different free electron concentrations. A comparison of optical properties of LBSO with the tin-doped indium oxide thin films with identical carrier concentrations suggests that the redshift of the screened plasma wavelength for LBSO originates from its large high-frequency dielectric constant of 4.4, one of the highest reported for the s-orbital-based TCOs. Moreover, our measurements confirm an optical mobility significantly higher (>300 cm(2)/V s) than the drift mobility.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

<a href="/cs/project/GA18-24268S" target="_blank" >GA18-24268S: Manipulace vlastností rozhraní oxidů přechodových kovů</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

APL Materials

ISSN

2166-532X

e-ISSN

—

Svazek periodika

8

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

6

Strana od-do

1-6

Kód UT WoS článku

000542353500001

EID výsledku v databázi Scopus

2-s2.0-85087883580