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Zero-Dimensional Lead-Free Hybrid Perovskite-like Material with a Quantum-Well Structure
CSIR Natl Inst Interdisciplinary Sci & Technol NI, Photosci & Photon Sect, Thiruvananthapuram 695019, Kerala, India;Acad Sci & Innovat Res AcSIR, Ghaziabad 201002, India.
Savitribai Phule Pune Univ, Ctr Modelling & Simulat, Pune 411007, Maharashtra, India.
CSIR Natl Inst Interdisciplinary Sci & Technol NI, Photosci & Photon Sect, Thiruvananthapuram 695019, Kerala, India;Acad Sci & Innovat Res AcSIR, Ghaziabad 201002, India.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Theory.ORCID iD: 0000-0002-6765-2084
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2019 (English)In: Chemistry of Materials, ISSN 0897-4756, E-ISSN 1520-5002, Vol. 31, no 6, p. 1941-1945Article in journal (Refereed) Published
Abstract [en]

Low-dimensional perovskites are an emerging class of materials with high stability and excellent optoelectronic properties. Herein, we introduce a novel, lead-free, zero-dimensional perovskite-like material, (1,3-propanediammonium)(2)Bi2I10 center dot 2H(2)O, for optoelectronic applications. This material exhibited good moisture and thermal stability under ambient conditions. Single-crystal X-ray diffraction analysis revealed a quantum-well structure having the inorganic Bi2I104- clusters periodically arranged in the crystallographic "c" axis separated by a distance of 5.36 angstrom, sandwiched by independent layers of organic cations. The density functional theory calculations showed that the oxygen in water molecules has a significant contribution to the band edges of the material. The photodetector device fabricated using this material showed an efficient charge separation at low voltage (1 V) due to the good electronic conduction between the Bi2I104- dimer units.

Place, publisher, year, edition, pages
American Chemical Society (ACS), 2019. Vol. 31, no 6, p. 1941-1945
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Materials Chemistry
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URN: urn:nbn:se:uu:diva-382454DOI: 10.1021/acs.chemmater.8b04642ISI: 000462950400012OAI: oai:DiVA.org:uu-382454DiVA, id: diva2:1315044
Available from: 2019-05-10 Created: 2019-05-10 Last updated: 2019-05-10Bibliographically approved

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Chakraborty, Sudip

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