Probing Photoinduced Degradation of CH3NH3PbI3 Perovskite Films by Kelvin Probe and Photoluminescence Techniques

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F18%3A00327150" target="_blank" >RIV/68407700:21230/18:00327150 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/18:00502168

Výsledek na webu

<a href="https://www.eupvsec-proceedings.com/proceedings?paper=46113" target="_blank" >https://www.eupvsec-proceedings.com/proceedings?paper=46113</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4229/35thEUPVSEC20182018-3DO.4.5" target="_blank" >10.4229/35thEUPVSEC20182018-3DO.4.5</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Probing Photoinduced Degradation of CH3NH3PbI3 Perovskite Films by Kelvin Probe and Photoluminescence Techniques

Popis výsledku v původním jazyce

In this work, the photoinduced degradation of CH3NH3PbI3 perovskite films under illumination in ambient conditions (relative humidity 30-50%) was studied by Kelvin Probe and Photoluminescence techniques. Using Kelvin Probe techniques, we investigated the effects on the work function of the CH3NH3PbI3 film on fluorine-doped SnO2 (FTO) at various photoinduced degradation states in the dark and under illumination. It was found that the work function of CH3NH3PbI3 film on FTO was gradually increased in the dark after every 10 min illumination step until the film was completely degraded. The gradual increase in work function due to the degradation can be ascribed to modulation doping of the CH3NH3PbI3 by PbI2 phase. It was also found that the contact potential difference (CPD) of CH3NH3PbI3 on FTO was increased under illumination as a result of a positive surface photovoltage relative to the FTO.

Název v anglickém jazyce

Probing Photoinduced Degradation of CH3NH3PbI3 Perovskite Films by Kelvin Probe and Photoluminescence Techniques

Popis výsledku anglicky

In this work, the photoinduced degradation of CH3NH3PbI3 perovskite films under illumination in ambient conditions (relative humidity 30-50%) was studied by Kelvin Probe and Photoluminescence techniques. Using Kelvin Probe techniques, we investigated the effects on the work function of the CH3NH3PbI3 film on fluorine-doped SnO2 (FTO) at various photoinduced degradation states in the dark and under illumination. It was found that the work function of CH3NH3PbI3 film on FTO was gradually increased in the dark after every 10 min illumination step until the film was completely degraded. The gradual increase in work function due to the degradation can be ascribed to modulation doping of the CH3NH3PbI3 by PbI2 phase. It was also found that the contact potential difference (CPD) of CH3NH3PbI3 on FTO was increased under illumination as a result of a positive surface photovoltage relative to the FTO.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

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

Projekt

<a href="/cs/project/EF15_003%2F0000464" target="_blank" >EF15_003/0000464: Centrum pokročilé fotovoltaiky</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of the International Conference of 35th European Photovoltaic Solar Energy Conference and Exhibition

ISBN

3-936338-50-7

ISSN

—

e-ISSN

2196-0992

Počet stran výsledku

4

Strana od-do

856-859

Název nakladatele

WIP Wirtschaft und Infrastruktur GmbH & Co Planungs KG

Místo vydání

München

Místo konání akce

Brusel

Datum konání akce

24. 9. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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