Influence of Surface Polarity on Optoelectronic Properties of PEDOT:PSS/ZnO Hybrid Heterojunctions

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985882%3A_____%2F21%3A00543279" target="_blank" >RIV/67985882:_____/21:00543279 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1002/pssa.202000612" target="_blank" >https://doi.org/10.1002/pssa.202000612</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/pssa.202000612" target="_blank" >10.1002/pssa.202000612</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Influence of Surface Polarity on Optoelectronic Properties of PEDOT:PSS/ZnO Hybrid Heterojunctions

Popis výsledku v původním jazyce

The influence of polar and nonpolar crystallographic orientations of ZnO substrates on the current transport mechanism in poly(3,4-ethylenedioxythiophene) poly(4-styrenesulfonate) (PEDOT:PSS)/ ZnO heterojunctions is investigated by DC and AC electrical measurements. It is shown that PEDOT:PSS forms high-quality rectifying junctions on nonpolar planes of n-type ZnO substrates, whereas on polar c-planes, the quality of the junction is affected by the surface polarity, with lower-quality junctions formed on the O-polar c-plane. The lower quality of the junction is attributed to partial degradation of the O-polar surface caused by the acidic nature of PEDOT:PSS. By the analysis of current-voltage characteristics, it is demonstrated that the recombination-tunneling mechanism dominates charge transport in the forward direction. An equivalent circuit is proposed to interpret the data obtained by impedance spectroscopy and the parameters of the equivalent circuit are extracted

Název v anglickém jazyce

Influence of Surface Polarity on Optoelectronic Properties of PEDOT:PSS/ZnO Hybrid Heterojunctions

Popis výsledku anglicky

The influence of polar and nonpolar crystallographic orientations of ZnO substrates on the current transport mechanism in poly(3,4-ethylenedioxythiophene) poly(4-styrenesulfonate) (PEDOT:PSS)/ ZnO heterojunctions is investigated by DC and AC electrical measurements. It is shown that PEDOT:PSS forms high-quality rectifying junctions on nonpolar planes of n-type ZnO substrates, whereas on polar c-planes, the quality of the junction is affected by the surface polarity, with lower-quality junctions formed on the O-polar c-plane. The lower quality of the junction is attributed to partial degradation of the O-polar surface caused by the acidic nature of PEDOT:PSS. By the analysis of current-voltage characteristics, it is demonstrated that the recombination-tunneling mechanism dominates charge transport in the forward direction. An equivalent circuit is proposed to interpret the data obtained by impedance spectroscopy and the parameters of the equivalent circuit are extracted

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Physica Status Solidi A

ISSN

1862-6300

e-ISSN

1862-6319

Svazek periodika

218

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

7

Strana od-do

2000612

Kód UT WoS článku

000609057000001

EID výsledku v databázi Scopus

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