Abdi Jalebi, Mojtaba;
Sadhanala, Aditya;
Friend, Richard H;
(2016)
Morphology, structure and optical properties of low bandgap organic-inorganic halide perovskite based on CH₃NH₃SnxPb₁₋ₓI₃.
In: Hosseini, Hamid Reza Madaah and Hormozi-Nezhad, Mohammad Reza, (eds.)
Proceedings of the 6th International Conference on Nanostructures (ICNS6).
International Conference on Nanostructures (ICNS): Kish Island, Iran.
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ICNS6, Abstract, 05.09.2015, MASn(1-x)PbxI3- Mojtaba Abdi-Jalebi.pdf - Accepted Version Download (865kB) | Preview |
Abstract
Herein, we investigate morphology, structure and optical properties of low band gap organic-inorganic halide perovskite based on a mixture of lead and tin as the divalent cation in ABX3 structure. A significant change in morphology of CH3NH3SnxPb1−xI3 perovskite with x as well as an alteration in crystal structure from I4cm (β-phase) to pseudocubic P4mm (α-phase) space groups is observed when Sn is the dominant divalent cation (x ≥ 0.5). Photo thermal defection optical absorption spectroscopy (PDS) and photoluminescence (PL) of CH3NH3SnxPb1−xI3 show the non-linear change in the band edge of perovskite. The bandgap as low as 1.17 eV and the most red-shifted PL at 1035nm is achieved for perovskite with x=0.8. In addition, higher electronic disorder is measured for CH3NH3SnxPb1−xI3 compounds with higher x.
| Type: | Proceedings paper |
|---|---|
| Title: | Morphology, structure and optical properties of low bandgap organic-inorganic halide perovskite based on CH₃NH₃SnxPb₁₋ₓI₃ |
| Event: | 6th International Conference on Nanostructures (ICNS6) |
| Location: | Kish Island, Iran |
| Dates: | 7 Mar 2016 - 10 Mar 2016 |
| Open access status: | An open access version is available from UCL Discovery |
| Publisher version: | http://icns7.sharif.ir/page_657.html |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Low bandgap perovskite, CH3NH3SnxPb1−xI3, Photothermal deflection spectroscopy |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > MAPS Faculty Office UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > MAPS Faculty Office > Institute for Materials Discovery |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10159093 |
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