Combining Dual-Light Emissions to Achieve Efficient Broadband Yellowish-Green Luminescence in One-Dimensional Hybrid Lead Halides
- 19 January 2021
- journal article
- research article
- Published by American Chemical Society (ACS) in Inorganic Chemistry
- Vol. 60 (3), 1491-1498
- https://doi.org/10.1021/acs.inorgchem.0c02785
Abstract
In recent years, low-dimensional lead halides have emerged as some of most attractive photoelectric materials due to their intrinsic broadband emissions with a potential application in white-light emitting diodes. To achieve the desired performance, tremendous research has emphasized the modulation of inorganic components as optical centers; however, less work has paid attention to the direct contribution of the organic components. Herein, we successfully assembled two new hybrid lead halides of [H2BPP]Pb2X6 (X = Br, 1, and Cl, 2) containing one-dimensional double [Pb2X6]2– chains using optically active 1,3-bis(4-pyridyl)-propane (BPP) as an organic cation. Under UV-light excitation, compounds 1 and 2 exhibit broadband yellowish-green emissions, which were verified by promising photoluminescence quantum efficiencies (PLQEs) of 8.10% and 4.84%, respectively. The broadband light emissions are derived from the combination of dual higher-energy blue and lower-energy yellow light spectra, which can be attributed to the individual contributions of the organic and inorganic components, respectively, according to the time-resolved and temperature-dependent emission spectra as well as theoretical calculations. This work proves the great contribution of organic components to the photophysical properties and provides a new design strategy to realize broadband light emission by rationally combining the dual-emitting properties of different assembly blocks.Funding Information
- Shandong Province (J18kz005)
- National Natural Science Foundation of China (21671080)
- Young Innovative Talents Introduction & Cultivation Program for Colleges and Universities of Shandong Province
This publication has 62 references indexed in Scilit:
- Ultrasonication-assisted trace amount solvent synthesis of Cs4PbBr6crystal with ultra-bright green light emissionAPL Materials, 2020
- Light emission from perovskite materialsAPL Materials, 2020
- A one-dimensional dual emissive hybrid perovskite with flexibly tunable white-light emissionJournal of Materials Chemistry C, 2020
- New Insights into Mn-Mn Coupling Interaction-Directed Photoluminescence Quenching Mechanism in Mn2+-Doped SemiconductorsJournal of the American Chemical Society, 2020
- Intrinsic White‐Light‐Emitting Metal–Organic Frameworks with Structurally Deformable Secondary Building UnitsAngewandte Chemie, 2019
- A New Type of Three-Dimensional Hybrid Polymeric Haloplumbate Based on Rare High-Nuclear Heterometallic ClustersInorganic Chemistry, 2018
- New Y2LuCaAl2SiO12:Ln (Ln = Ce3+, Eu3+, and Tb3+) phosphors for white LED applicationsInorganic Chemistry Frontiers, 2018
- Single-component small-molecule white light organic phosphorsChemical Communications, 2017
- Lanthanide-Activated Phosphors Based on 4f-5d Optical Transitions: Theoretical and Experimental AspectsChemical Reviews, 2017
- Ce3+-Doped garnet phosphors: composition modification, luminescence properties and applicationsChemical Society Reviews, 2016