Tunable Dual‐Band White Light Emission from Gua3CuCl4 and Gua7Cu3X10·3DMF (X = Br, I)
All‐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...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley-VCH
2022-12-01
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| Series: | Advanced Photonics Research |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/adpr.202200172 |
| _version_ | 1811205622619701248 |
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| author | Isaiah W. Gilley Tielyr D. Creason Timothy M. McWhorter Bayram Saparov |
| author_facet | Isaiah W. Gilley Tielyr D. Creason Timothy M. McWhorter Bayram Saparov |
| author_sort | Isaiah W. Gilley |
| collection | DOAJ |
| description | All‐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. |
| first_indexed | 2024-04-12T03:35:12Z |
| format | Article |
| id | doaj.art-1c2d14767a6e4c3f87db5bccdf5e70ff |
| institution | Directory Open Access Journal |
| issn | 2699-9293 |
| language | English |
| last_indexed | 2024-04-12T03:35:12Z |
| publishDate | 2022-12-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Advanced Photonics Research |
| spelling | doaj.art-1c2d14767a6e4c3f87db5bccdf5e70ff2022-12-22T03:49:27ZengWiley-VCHAdvanced Photonics Research2699-92932022-12-01312n/an/a10.1002/adpr.202200172Tunable Dual‐Band White Light Emission from Gua3CuCl4 and Gua7Cu3X10·3DMF (X = Br, I)Isaiah W. Gilley0Tielyr D. Creason1Timothy M. McWhorter2Bayram Saparov3Department of Chemistry and Biochemistry University of Oklahoma 101 Stephenson Parkway Norman OK 73019 USADepartment of Chemistry and Biochemistry University of Oklahoma 101 Stephenson Parkway Norman OK 73019 USADepartment of Chemistry and Biochemistry University of Oklahoma 101 Stephenson Parkway Norman OK 73019 USADepartment of Chemistry and Biochemistry University of Oklahoma 101 Stephenson Parkway Norman OK 73019 USAAll‐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.https://doi.org/10.1002/adpr.202200172anti-Stokescopper halideslead-free halideslight emissionphotoluminescence |
| spellingShingle | Isaiah W. Gilley Tielyr D. Creason Timothy M. McWhorter Bayram Saparov Tunable Dual‐Band White Light Emission from Gua3CuCl4 and Gua7Cu3X10·3DMF (X = Br, I) Advanced Photonics Research anti-Stokes copper halides lead-free halides light emission photoluminescence |
| title | Tunable Dual‐Band White Light Emission from Gua3CuCl4 and Gua7Cu3X10·3DMF (X = Br, I) |
| title_full | Tunable Dual‐Band White Light Emission from Gua3CuCl4 and Gua7Cu3X10·3DMF (X = Br, I) |
| title_fullStr | Tunable Dual‐Band White Light Emission from Gua3CuCl4 and Gua7Cu3X10·3DMF (X = Br, I) |
| title_full_unstemmed | Tunable Dual‐Band White Light Emission from Gua3CuCl4 and Gua7Cu3X10·3DMF (X = Br, I) |
| title_short | Tunable Dual‐Band White Light Emission from Gua3CuCl4 and Gua7Cu3X10·3DMF (X = Br, I) |
| title_sort | tunable dual band white light emission from gua3cucl4 and gua7cu3x10·3dmf x br i |
| topic | anti-Stokes copper halides lead-free halides light emission photoluminescence |
| url | https://doi.org/10.1002/adpr.202200172 |
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