Deciphering the effect of traps on electronic charge transport properties of methylammonium lead tribromide perovskite
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F20%3A10417392" target="_blank" >RIV/00216208:11320/20:10417392 - isvavai.cz</a>
Výsledek na webu
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=15qUBSU9of" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=15qUBSU9of</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1126/sciadv.abb6393" target="_blank" >10.1126/sciadv.abb6393</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Deciphering the effect of traps on electronic charge transport properties of methylammonium lead tribromide perovskite
Popis výsledku v původním jazyce
Halide perovskites have undergone remarkable developments as highly efficient optoelectronic materials for a variety of applications. Several studies indicated the critical role of defects on the performance of perovskite devices. However, the parameters of defects and their interplay with free charge carriers remain unclear. In this study, we explored the dynamics of free holes in methylammonium lead tribromide (MAPbBr(3)) single crystals using the time-of-flight (ToF) current spectroscopy. By combining ToF spectroscopy and Monte Carlo simulation, three energy states were detected in the bandgap of MAPbBr(3). In addition, we found the trapping and detrapping rates of free holes ranging from a few microseconds to hundreds of microseconds. Contrary to previous studies, we revealed a strong detrapping activity of traps. We showed that these traps substantially affect the transport properties of MAPbBr(3), including mobility and mobility-lifetime product. Our results provide an insight on charge transport properties of perovskite semiconductors.
Název v anglickém jazyce
Deciphering the effect of traps on electronic charge transport properties of methylammonium lead tribromide perovskite
Popis výsledku anglicky
Halide perovskites have undergone remarkable developments as highly efficient optoelectronic materials for a variety of applications. Several studies indicated the critical role of defects on the performance of perovskite devices. However, the parameters of defects and their interplay with free charge carriers remain unclear. In this study, we explored the dynamics of free holes in methylammonium lead tribromide (MAPbBr(3)) single crystals using the time-of-flight (ToF) current spectroscopy. By combining ToF spectroscopy and Monte Carlo simulation, three energy states were detected in the bandgap of MAPbBr(3). In addition, we found the trapping and detrapping rates of free holes ranging from a few microseconds to hundreds of microseconds. Contrary to previous studies, we revealed a strong detrapping activity of traps. We showed that these traps substantially affect the transport properties of MAPbBr(3), including mobility and mobility-lifetime product. Our results provide an insight on charge transport properties of perovskite semiconductors.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Návaznosti výsledku
Projekt
<a href="/cs/project/GA19-11920S" target="_blank" >GA19-11920S: Transport náboje v pixelových detektorech záření CdZnTe</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2020
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Science advances [online]
ISSN
2375-2548
e-ISSN
—
Svazek periodika
6
Číslo periodika v rámci svazku
37
Stát vydavatele periodika
US - Spojené státy americké
Počet stran výsledku
10
Strana od-do
eabb6393
Kód UT WoS článku
000571356100023
EID výsledku v databázi Scopus
2-s2.0-85090903080