Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/31305
Title: 2D layered perovskite containing functionalised benzothieno-benzothiophene molecules: formation, degradation, optical properties and photoconductivity
Authors: VAN GOMPEL, Wouter 
HERCKENS, Roald 
DENIS, Paul-Henry 
MERTENS, Martijn 
Gélvez-Rueda, María C.
Van Hecke, Kristof
RUTTENS, Bart 
D'HAEN, Jan 
Grozema, Ferdinand C.
LUTSEN, Laurence 
VANDERZANDE, Dirk 
Issue Date: 2020
Publisher: ROYAL SOC CHEMISTRY
Source: Journal of Materials Chemistry C, 8 (21) , p. 7181 -7188
Abstract: 2D layered hybrid perovskites are currently in the spotlight for applications such as solar cells, light-emitting diodes, transistors and photodetectors. The structural freedom of 2D layered perovskites allows for the incorporation of organic cations that can potentially possess properties contributing to the performance of the hybrid as a whole. In this study, we incorporated a benzothieno[3,2-b]benzothiophene (BTBT) alkylammonium cation into the organic layer of a 2D layered lead iodide perovskite. The formation and degradation of this material are discussed in detail. It is shown that the use of a solvent vapour annealing method significantly enhances the absorption, emission and crystallinity of films of this 2D layered perovskite as compared to regular thermal annealing. The photoconductivity of the films was determined using time-resolved microwave conductivity (TRMC) as well as in a device. In both cases, the solvent vapour annealed films show markedly higher photoconductivity than the films obtained using the regular thermal annealing approach.
Keywords: Hybrid Perovskites;Moisture;Films
Document URI: http://hdl.handle.net/1942/31305
ISSN: 2050-7526
e-ISSN: 2050-7534
DOI: 10.1039/d0tc01053g
ISI #: WOS:000540457400023
Rights: © The Royal Society of Chemistry 2020 Open Access Article, This article is licensed under a Creative Commons Attribution
Category: A1
Type: Journal Contribution
Validations: ecoom 2021
Appears in Collections:Research publications

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