Insight into the perovskite photoluminescence enhancement: Photoluminescence and electrical properties study

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F17%3A00487036" target="_blank" >RIV/68378271:_____/17:00487036 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Insight into the perovskite photoluminescence enhancement: Photoluminescence and electrical properties study

Popis výsledku v původním jazyce

We studied the photoluminescence (PL) enhancement of perovskite thin films by PL microscopy and compared the results with Fourier-transform photocurrent spectroscopy (FTPS) which was recently used to identify sharp absorption edge as the reason for the high material quality of perovskite films. In this study, we explore the absorption edge (defect density) and photo-current upon illumination. Surprisingly, even if the local electrical quality improves, the photo-current detected by FTPS decreases with illumination time. Furthermore, a microscopic model based on grain boundaries to explain the measured dependences is proposed.n

Název v anglickém jazyce

Insight into the perovskite photoluminescence enhancement: Photoluminescence and electrical properties study

Popis výsledku anglicky

We studied the photoluminescence (PL) enhancement of perovskite thin films by PL microscopy and compared the results with Fourier-transform photocurrent spectroscopy (FTPS) which was recently used to identify sharp absorption edge as the reason for the high material quality of perovskite films. In this study, we explore the absorption edge (defect density) and photo-current upon illumination. Surprisingly, even if the local electrical quality improves, the photo-current detected by FTPS decreases with illumination time. Furthermore, a microscopic model based on grain boundaries to explain the measured dependences is proposed.n

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

20704 - Energy and fuels

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

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