DSpace Repository

Anisotropic Photoconductivity and Long-Lived Charge Carriers in Bismuth-Based One-Dimensional Perovskite with Type-IIa Band Alignment

Show simple item record

dc.contributor.author Pious, JK
dc.contributor.author Basavarajappa, MG
dc.contributor.author Muthu, C
dc.contributor.author Nishikubo, R
dc.contributor.author Saeki, A
dc.contributor.author Chakraborty, S
dc.contributor.author Nair, VC
dc.date.accessioned 2021-05-12T09:12:53Z
dc.date.available 2021-05-12T09:12:53Z
dc.date.issued 2020-08-20
dc.identifier.citation The Journal of Physical Chemistry Letters;11(16): 6757-6762 en_US
dc.identifier.uri https://doi.org/10.1021/acs.jpclett.0c01772
dc.identifier.uri http://hdl.handle.net/123456789/3748
dc.description.abstract Bismuth-based perovskites are attracting intense scientific interest due to low toxicity and excellent moisture stability compared to lead-based analogues. However, high exciton binding energy, poor charge carrier separation, and transport efficiencies lower their optoelectronic performances. To address these issues, we have integrated an electronically active organic cation, naphthalimide ethylammonium, between the [BiI5 2−]n chains via crystal engineering to form a novel perovskite-like material (naphthalimide ethylammonium) 2BiI5 (NBI). Single crystal analysis revealed a one-dimensional quantum-well structure for NBI in which inter-inorganic well electronic coupling is screened by organic layers. It exhibited anisotropic photoconductivity and long-lived charge carriers with milliseconds lifetime, which is higher than that of CH3NH3PbI3. Density functional theory calculations confirmed type-IIa band alignment between organic cations and inorganic chains, allowing the former to electronically contribute to the overall charge transport properties of the material. en_US
dc.language.iso en en_US
dc.publisher American Chemical Society en_US
dc.subject perovskite en_US
dc.subject type-IIa band alignment en_US
dc.subject bismuth-based en_US
dc.title Anisotropic Photoconductivity and Long-Lived Charge Carriers in Bismuth-Based One-Dimensional Perovskite with Type-IIa Band Alignment en_US
dc.type Article en_US


Files in this item

This item appears in the following Collection(s)

  • 2020
    Research articles authored by NIIST researchers published in 2020

Show simple item record

Search DSpace


Advanced Search

Browse

My Account