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https://hdl.handle.net/10356/179961
Title: | MAPbI3 perovskite multiple quantum wells for enhanced light emission and detection | Authors: | White, Luke Robert Warren Kosasih, Felix Utama Ma, Ke Fu, Jianhui Feng, Minjun Sherburne, Matthew P. Asta, Mark Sum, Tze Chien Mhaisalkar, Subodh Gautam Bruno, Annalisa |
Keywords: | Engineering Physics |
Issue Date: | 2024 | Source: | White, L. R. W., Kosasih, F. U., Ma, K., Fu, J., Feng, M., Sherburne, M. P., Asta, M., Sum, T. C., Mhaisalkar, S. G. & Bruno, A. (2024). MAPbI3 perovskite multiple quantum wells for enhanced light emission and detection. ACS Energy Letters, 9(9), 4450-4458. https://dx.doi.org/10.1021/acsenergylett.4c01499 | Project: | NRF-CRP25-2020-0004 MOE-T2EP50221-0035 |
Journal: | ACS Energy Letters | Abstract: | Multiple quantum wells (MQWs) based on thermally evaporated hybrid perovskite have been demonstrated in type-I and type-II energy band configurations by combining MAPbI3 with bathocuproine (BCP) and lead phthalocyanine (PbPC), respectively. Their optoelectronic properties and charge dynamics have been studied, together with their device potentials. Density functional theory calculations highlighted the major role of surface-localized carriers in ultrathin MAPbI3 and when BCP or PbPC are on top. This restrained charge exchange can reduce the band bending and minimize the disruption of band alignment, confirming the potential of these interlayer materials for MQWs. Furthermore, type-I MQWs show a remarkable increase in photoluminescence intensity (up to 50 times) and a faster radiative recombination rate as MAPbI3 thickness decreases, demonstrating promising light emission capabilities. Type-II MQWs exhibit extended spectral sensitivity and efficient charge separation, significantly improving photodetector performance. This work sets a foundational framework for the further exploration of perovskite MQWs in light-emitting and photodetection applications. | URI: | https://hdl.handle.net/10356/179961 | ISSN: | 2380-8195 | DOI: | 10.1021/acsenergylett.4c01499 | DOI (Related Dataset): | 10.21979/N9/ZZAOHL | Schools: | Interdisciplinary Graduate School (IGS) School of Materials Science and Engineering School of Physical and Mathematical Sciences |
Research Centres: | Energy Research Institute @ NTU (ERI@N) | Rights: | © 2024 American Chemical Society. All rights reserved. This article may be downloaded for personal use only. Any other use requires prior permission of the copyright holder. The Version of Record is available online at http://doi.org/10.1021/acsenergylett.4c01499. | Fulltext Permission: | embargo_20250920 | Fulltext Availability: | With Fulltext |
Appears in Collections: | ERI@N Journal Articles |
Files in This Item:
File | Description | Size | Format | |
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white_et_al_manuscript_2024_ACS_mapbi3_perovskite_MQW_for_enhanced_light_emission_and_detection.pdf Until 2025-09-20 | Manuscript | 1.94 MB | Adobe PDF | Under embargo until Sep 20, 2025 |
white_et_al_SI_2024_ACS_mapbi3_perovskite_MQW_for_enhanced_light_emission_and_detection.pdf Until 2025-09-20 | Supplementary Information | 2.13 MB | Adobe PDF | Under embargo until Sep 20, 2025 |
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