Please use this identifier to cite or link to this item:
https://doi.org/10.1038/s43246-021-00175-6
Title: | Ligand size effects in two-dimensional hybrid copper halide perovskites crystals | Authors: | Arramel, Arramel Fauzi, Angga Dito Yin, Xinmao Tang, Chi Sin Mahyuddin, Muhammad Haris Sahdan, Muhammad Fauzi Aminah, Mimin Onggo, Djulia Shukri, Ganes Diao, Caozheng Wang, Hong Birowosuto, Muhammad Danang Wee, Andrew Thye Shen Rusydi, Andrivo |
Issue Date: | 1-Jul-2021 | Publisher: | Springer Nature | Citation: | Arramel, Arramel, Fauzi, Angga Dito, Yin, Xinmao, Tang, Chi Sin, Mahyuddin, Muhammad Haris, Sahdan, Muhammad Fauzi, Aminah, Mimin, Onggo, Djulia, Shukri, Ganes, Diao, Caozheng, Wang, Hong, Birowosuto, Muhammad Danang, Wee, Andrew Thye Shen, Rusydi, Andrivo (2021-07-01). Ligand size effects in two-dimensional hybrid copper halide perovskites crystals. Communications Materials 2 (1) : 70. ScholarBank@NUS Repository. https://doi.org/10.1038/s43246-021-00175-6 | Rights: | Attribution 4.0 International | Abstract: | Intensive effort to tailor photophysics of lead-free perovskites is appealing in recent years. However, their combined electronic and optical property elucidations remain elusive. Here, we report spectroscopic observations of the coexistence Zhang-Rice singlet state and exotic electronic transitions in two-dimensional copper-based perovskites. Herein, several perovskites with different alkylammonium spacers are investigated to unravel their correlated electronic systems and optical responses. Namely, methylammonium, ethylammonium, phenylmethylammonium and phenethylammonium. Using temperature dependent high-resolution X-ray absorption spectroscopy, we observe distinct electronic features highlighting the impact of short spacer chains compared to long-conjugated ligands, demonstrating a pronounced 3d9 and 3d9L signature linewidth variation. Corroborated by density functional theory calculations, the transient dynamics evolution of copper-based hybrid perovskites is influenced by the strong interplay of electron-phonon interactions and geometric constrictions. This finding sheds light on tuning the electronic and optical properties of hybrid perovskites towards efficient photoactive-based devices. © 2021, The Author(s). | Source Title: | Communications Materials | URI: | https://scholarbank.nus.edu.sg/handle/10635/233000 | ISSN: | 2662-4443 | DOI: | 10.1038/s43246-021-00175-6 | Rights: | Attribution 4.0 International |
Appears in Collections: | Staff Publications Elements |
Show full item record
Files in This Item:
File | Description | Size | Format | Access Settings | Version | |
---|---|---|---|---|---|---|
10_1038_s43246-021-00175-6.pdf | 4.06 MB | Adobe PDF | OPEN | None | View/Download |
This item is licensed under a Creative Commons License