Abstract
Low-dimensional organic-inorganic halide perovskites (OIHPs) have received intense interest largely due to their remarkable stability compared to their 3D counterparts for potential optoelectronic and photovoltaic (PV) applications. However, 2D OIHPs encounter a 'bottleneck' of ultra-low conductivity between the inorganic sheets, owing to the intrinsic quantum and dielectric confinements, which usually results in unsatisfactory device performance. Herein, we predict and design a new family of 2D OIHPs to break the charge-transport 'bottleneck'. The newly designed 2D OIHPs consist of π-conjugated organic species as the spacers. As such, we find that the electronic structures exhibit type-II band alignment (staggered bandgap). Such a band-structure feature by design, if confirmed in the laboratory, re-enforces a materials design strategy for enhancing optoelectronic or PV device performance with 2D OIHPs.
Original language | English (US) |
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Pages (from-to) | 16742-16747 |
Number of pages | 6 |
Journal | Journal of Materials Chemistry A |
Volume | 7 |
Issue number | 28 |
DOIs | |
State | Published - 2019 |
ASJC Scopus subject areas
- General Chemistry
- Renewable Energy, Sustainability and the Environment
- General Materials Science