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dc.contributor.authorChen, Lung-Chienen_US
dc.contributor.authorTien, Ching-Hoen_US
dc.contributor.authorTseng, Po-Weien_US
dc.contributor.authorTseng, Zong-Liangen_US
dc.contributor.authorHuang, Wei-Lunen_US
dc.contributor.authorXu, You-Xunen_US
dc.contributor.authorKuo, Hao-Chungen_US
dc.date.accessioned2020-10-05T02:01:59Z-
dc.date.available2020-10-05T02:01:59Z-
dc.date.issued2020-01-01en_US
dc.identifier.issn2169-3536en_US
dc.identifier.urihttp://dx.doi.org/10.1109/ACCESS.2020.3020594en_US
dc.identifier.urihttp://hdl.handle.net/11536/155400-
dc.description.abstractIn order to improve the stability and cost of perovskite CsPbBr3 and establish a preparation process for quantum dot materials with excellent luminescence properties, CsPbBr3 quantum dots were synthesized by the hot injection method and the ice bath method in air ambient. Then, a proprietary purification system was used to improve the properties of the quantum dots and prepare high-quality perovskite quantum dot films. Optimal material and light characteristics were exhibited with ethyl acetate:hexane as the purification solvent. In the solution form, the photoluminescence wavelength could be maintained at 508 nm with almost no shift compared with other conditions, and the quantum yield could reach 99%; however, superior performance was obtained in the thin-film form, which exhibited little to no shift in the photoluminescence wavelength and, surprisingly, achieved a quantum yield of 91.6% with a narrow PL emission with a full width at half-maximum of 28 nm. In addition, exceptional thin-film uniformity was observed from scanning electron microscopy image analyses. The CsPbBr3 quantum dot light-emitting diode purified with ethyl acetate:hexane demonstrated an open-circuit voltage of 4 V, a maximum luminous brightness of 488 cd m(-2), and a maximum external quantum efficiency of 0.14%.en_US
dc.language.isoen_USen_US
dc.subjectOptoelectronic devicesen_US
dc.subjectlight emitting diodesen_US
dc.subjectquantum dotsen_US
dc.subjectperovskiteen_US
dc.subjectCsPbBr3en_US
dc.titleEffect of Washing Solvents on the Properties of Air-Synthesized Perovskite CsPbBr3 Quantum Dots for Quantum Dot-Based Light-Emitting Devicesen_US
dc.typeArticleen_US
dc.identifier.doi10.1109/ACCESS.2020.3020594en_US
dc.identifier.journalIEEE ACCESSen_US
dc.citation.volume8en_US
dc.citation.spage159415en_US
dc.citation.epage159423en_US
dc.contributor.department光電工程學系zh_TW
dc.contributor.department光電工程研究所zh_TW
dc.contributor.departmentDepartment of Photonicsen_US
dc.contributor.departmentInstitute of EO Enginerringen_US
dc.identifier.wosnumberWOS:000570082800001en_US
dc.citation.woscount0en_US
Appears in Collections:Articles