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White Hybrid Light-Emitting Devices Based on the Emission of Thermal Annealed Ternary CdSe/ZnS Quantum Dots
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作者 QU Da-Long ZHANG Zhen-Song +4 位作者 YUE Shou-Zhen WU Qing-yang yan ping-rui ZHAO Yi LIU Shi-Yong 《Chinese Physics Letters》 SCIE CAS CSCD 2012年第9期196-198,共3页
We report on a white hybrid light-emitting device employing a mixture of ternary CdSe/ZnS quantum dots(QDs)as an emitting layer(EML)and a small molecular material tris(8-hydroxyquinoline)aluminum(Alq3)as an electron-t... We report on a white hybrid light-emitting device employing a mixture of ternary CdSe/ZnS quantum dots(QDs)as an emitting layer(EML)and a small molecular material tris(8-hydroxyquinoline)aluminum(Alq3)as an electron-transporting layer.The film morphology of the spin-coated mixture of QDs is strongly improved via thermal annealing,and therefore a close-packed QD-EML is realized between organic charge-transporting layers.As a result,compared to the device with an unannealed QD-EML,the emission of Alq3 is deeply suppressed.In addition,a maximum luminance of more than 1000 cd/m2 and a maximum luminous efficiency of 2.2 cd/A are achieved. 展开更多
关键词 LUMINOUS TERNARY QUANTUM
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