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

Gilley, Isaiah W.; Creason, Tielyr D.; McWhorter, Timothy M.; Saparov, Bayram

dc.contributor.author	Gilley, Isaiah W.
dc.contributor.author	Creason, Tielyr D.
dc.contributor.author	McWhorter, Timothy M.
dc.contributor.author	Saparov, Bayram
dc.date.accessioned	2022-10-17T11:52:02Z
dc.date.available	2022-10-17T11:52:02Z
dc.date.issued	2022-08-17
dc.identifier.citation	Gilley, 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.202200172	en_US
dc.identifier.uri	https://hdl.handle.net/11244/336539
dc.description.abstract	ll-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.sponsorship	This 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 preparation	en_US
dc.language	en_US	en_US
dc.rights	Attribution 4.0 International	*
dc.rights.uri	https://creativecommons.org/licenses/by/4.0/	*
dc.subject	anti-Stokes	en_US
dc.subject	copper halides	en_US
dc.subject	lead-free halides	en_US
dc.subject	light emission	en_US
dc.subject	photoluminescence	en_US
dc.title	Tunable Dual-Band White Light Emission from Gua_3CuCl_4 and Gua_7Cu_3X_10·3DMF (X = Br, I)	en_US
dc.type	Article	en_US
dc.description.peerreview	Yes	en_US
dc.identifier.doi	10.1002/adpr.202200172	en_US
ou.group	Dodge Family College of Arts and Sciences::Department of Chemistry and Biochemistry	en_US