Defective States in Micro-Crystalline CsPbBr₃ and Their Role on Photoconductivity.
CsPbBr3
charge transfer
defects
microcrystals
thermally stimulated current
Journal
Nanomaterials (Basel, Switzerland)
ISSN: 2079-4991
Titre abrégé: Nanomaterials (Basel)
Pays: Switzerland
ID NLM: 101610216
Informations de publication
Date de publication:
01 Feb 2019
01 Feb 2019
Historique:
received:
04
12
2018
revised:
19
01
2019
accepted:
22
01
2019
entrez:
6
2
2019
pubmed:
6
2
2019
medline:
6
2
2019
Statut:
epublish
Résumé
Intrinsic defects in CsPbBr₃ microcrystalline films have been studied using thermally stimulated current (TSC) technique in a wide temperature range (100⁻400 K). Below room temperature, TSC emission is composed by a set of several energy levels, in the range 0.11⁻0.27 eV, suggesting a quasi-continuum distribution of states with almost constant density. Above room temperature, up to 400 K, the temperature range of interest for solar cells, both dark current and photocurrent, are mainly dominated by energy levels in the range 0.40⁻0.45 eV. Even if measured trap densities are high, in the range 10
Identifiants
pubmed: 30717081
pii: nano9020177
doi: 10.3390/nano9020177
pmc: PMC6409602
pii:
doi:
Types de publication
Journal Article
Langues
eng
Subventions
Organisme : Fondazione Cassa di Risparmio Firenze, Italy
ID : CARIFI Bando 2017
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