Tunable Dual-Band White Light Emission from Gua_3CuCl_4 and Gua_7Cu_3X_10·3DMF (X = Br, I)

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dc.contributor.authorGilley, Isaiah W.
dc.contributor.authorCreason, Tielyr D.
dc.contributor.authorMcWhorter, Timothy M.
dc.contributor.authorSaparov, Bayram
dc.date.accessioned2022-10-17T11:52:02Z
dc.date.available2022-10-17T11:52:02Z
dc.date.issued2022-08-17
dc.description.abstractll-inorganic copper(I) halides have recently emerged as attractive alternatives to lead-based halide perovskites and rare-earth-doped inorganics for light emission applications. Most of the newly discovered all-inorganic Cu(I) halides demonstrate high-efficiency blue emission albeit with unusually poor tunability of photoluminescence (PL) properties. This work reports the facile preparation of three new copper(I) halides based on the guanidinium cation: (CN3H6)3CuCl4, (CN3H6)7Cu3Br10·3(C3H7NO), and (CN3H6)7Cu3I10·3(C3H7NO). A comprehensive characterization of PL is presented for these novel materials, which have highly tunable, dual blue–yellow emission responsive to both excitation wavelength and vacuum annealing. These have remarkable photoluminescence quantum yield (PLQY) values of up to 34.6% and color-rendering indices (CRI) up to 97% for tunable, single-phase white light emission with correlated color temperatures (CCT) ranging from 4851 to 18 921 K, demonstrating the excellent potential of Cu(I) halides for light emission applications.en_US
dc.description.peerreviewYesen_US
dc.description.sponsorshipThis work was supported by the University of Oklahoma (OU) startup funds and by funds provided by the National Science Foundation (DMR-2045490). Financial support was provided by the University of Oklahoma Libraries’ Open Access Fund. The structure of Gua3CuCl4 was determined by T.D.C., and the structure of Gua7Cu2Br10·3DMF was determined by Dr. Douglas R. Powell. The diffractometer used for SCXRD measurements was purchased through funds from the National Science Foundation (CHE-1726630). The authors would also like to thank Hadiah Fattal for performing TGA/DSC measurements and Nancy Wang for her assistance in material preparationen_US
dc.identifier.citationGilley, I.W., Creason, T.D., McWhorter, T.M. and Saparov, B. (2022), Tunable Dual-Band White Light Emission from Gua3CuCl4 and Gua7Cu3X10·3DMF (X = Br, I). Adv. Photonics Res. 2200172. https://doi.org/10.1002/adpr.202200172en_US
dc.identifier.doi10.1002/adpr.202200172en_US
dc.identifier.urihttps://hdl.handle.net/11244/336539
dc.languageen_USen_US
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectanti-Stokesen_US
dc.subjectcopper halidesen_US
dc.subjectlead-free halidesen_US
dc.subjectlight emissionen_US
dc.subjectphotoluminescenceen_US
dc.titleTunable Dual-Band White Light Emission from Gua_3CuCl_4 and Gua_7Cu_3X_10·3DMF (X = Br, I)en_US
dc.typeArticleen_US
ou.groupDodge Family College of Arts and Sciences::Department of Chemistry and Biochemistryen_US

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