DataVXACS Applied Electronic MaterialsPaper
journal article·2019-03-26Open access

Near-Unity Photoluminescence Quantum Yield in Blue-Emitting Cs3Cu2Br5–xIx (0 ≤ x ≤ 5)

Rachel Roccanova, Aymen Yangui, Hariharan Nhalil, Hongliang Shi, Mao-Hua Du, Bayrammurad Saparov

ACS Applied Electronic Materials· Volume 1· Issue 3
Publisher pageOpen full text
Source abstract

Abstract

Recently, interest in developing efficient, low-cost, nontoxic, and stable metal halide emitters that can be incorporated into solid-state lighting technologies has taken hold. Here we report nontoxic, stable, and highly efficient blue-light-emitting Cs3Cu2Br5–xIx (0 ≤ x ≤ 5). Room-temperature photoluminescence measurements show bright blue emission in the 456 to 443 nm range with near-unity quantum yield for Cs3Cu2I5. Density functional theory calculations and power-dependent PL measurements suggest that the emission results from self-trapped excitons induced by strong charge localization within the zero-dimensional cluster structure of Cs3Cu2Br5–xIx.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Perovskite Materials and Applications · 2D Materials and Applications · Organic and Molecular Conductors Research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Chemistry and Biochemistry, University of Oklahoma, 101 Stephenson Parkway, Norman, Oklahoma 73019, United States

Department of Physics, Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 52900, Israel

Key Laboratory of Micro-Nano Measurement-Manipulation and Physics (Ministry of Education), Department of Physics, Beihang University, Beijing 100191, China

Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States

Funding

University of Oklahoma · Basic Energy Sciences · Oklahoma Center for the Advancement of Science and Technology

References (30)

Show source-provided references
1. 10.1109/EPTC.2006.34274610.1109/EPTC.2006.342746 ↗
2. 10.1038/s41563-018-0081-x10.1038/s41563-018-0081-x ↗
3. 10.1002/aenm.20160251210.1002/aenm.201602512 ↗
4. 10.1021/jacs.8b0773110.1021/jacs.8b07731 ↗
5. 10.1021/acs.chemmater.7b0416110.1021/acs.chemmater.7b04161 ↗
6. 10.1021/acs.chemmater.8b0067610.1021/acs.chemmater.8b00676 ↗
7. 10.1002/adma.20180454710.1002/adma.201804547 ↗
8. 10.1016/j.jssc.2004.05.00410.1016/j.jssc.2004.05.004 ↗
9. 10.1002/zaac.1988563011410.1002/zaac.19885630114 ↗
10. Asplund M. · Acta Chem. Scand. A · 1984 · 38 · 13510.3891/acta.chem.scand.38a-0135 ↗
11. 10.1021/ic000672q10.1021/ic000672q ↗
12. 10.1021/acs.inorgchem.7b0198610.1021/acs.inorgchem.7b01986 ↗
13. 10.1021/acs.chemmater.6b0043310.1021/acs.chemmater.6b00433 ↗
14. 10.1021/je020188x10.1021/je020188x ↗
15. 10.1016/S0040-6031(99)00326-310.1016/S0040-6031(99)00326-3 ↗
16. 10.1038/nmat444610.1038/nmat4446 ↗
17. 10.1143/JPSJ.22.48810.1143/JPSJ.22.488 ↗
18. 10.1021/cg100270d10.1021/cg100270d ↗
19. 10.1002/1521-3951(200103)224:1<313::AID-PSSB313>3.0.CO;2-B10.1002/1521-3951(200103)224:1<313::AID-PSSB313>3.0.CO;2-B ↗
20. 10.1016/0022-2313(94)90036-110.1016/0022-2313(94)90036-1 ↗
21. 10.1002/anie.20170282510.1002/anie.201702825 ↗
22. 10.1002/ange.20171038310.1002/ange.201710383 ↗
23. 10.1002/crat.20110062110.1002/crat.201100621 ↗
24. 10.1063/1.186805910.1063/1.1868059 ↗
25. 10.1021/ja411045r10.1021/ja411045r ↗
26. 10.1021/acs.jpcc.5b0621110.1021/acs.jpcc.5b06211 ↗
27. 10.1021/acs.jpclett.6b0079310.1021/acs.jpclett.6b00793 ↗
28. 10.1002/adom.20160066710.1002/adom.201600667 ↗
29. 10.1103/PhysRevLett.59.233710.1103/PhysRevLett.59.2337 ↗
30. 10.1016/j.dyepig.2018.02.03610.1016/j.dyepig.2018.02.036 ↗