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- W2008093323 abstract "The field emission (FE) device based on quantum dot (QD) films as a cathodoluminescent (CL) material has not emerged yet due to the relatively low quantum efficiency and weak photostability of nanocrystals (NCs). Here we improve film stability and luminescence yields by preparing neat films of well-packed core-multishell QDs using spray coating method and then using low-temperature atomic layer deposition (ALD) to infill the pores of these films with metal oxides to produce inorganic nanocomposites. The ALD coatings to protect oxidation and degradation by electrons prevent internal atomic and molecular diffusion and decrease surface trap densities of QD films. Furthermore, the CL of the core-multishell QD films is 2.4 times higher than before ALD infilling. We fabricate the FE device by combining cathode structure with carbon nanotube (CNT) emitters and anode plates with QD thin film and successfully can get brilliant images of the light-emitting FE device. Our research opens a way for developing new quantum optoelectronics with high-performance." @default.
- W2008093323 created "2016-06-24" @default.
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- W2008093323 date "2013-05-14" @default.
- W2008093323 modified "2023-10-18" @default.
- W2008093323 title "Visible cathodoluminescence of quantum dot films by direct irradiation of electron beam and its materialization as a field emission device" @default.
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- W2008093323 doi "https://doi.org/10.1364/oe.21.012519" @default.
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