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High color purity ZnSe/ZnS core/shell quantum dot based blue light emitting diodes with an inverted device structure
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10.1063/1.4817086
/content/aip/journal/apl/103/5/10.1063/1.4817086
http://aip.metastore.ingenta.com/content/aip/journal/apl/103/5/10.1063/1.4817086
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

The PL/absorption spectra of the two QD samples in toluene and EL spectra of QD-LEDs. Insets are the photos of QD PL.

Image of FIG. 2.
FIG. 2.

(a) The structure of the QD-LED; (b) energy level diagram of the materials used in this work; (c) EL spectra of Device A under different voltages. The inset shows the photograph of Device A under operating voltage of 5.0 V; (d) the EL spectra of Device B under different voltages. The inset shows the photograph of Device B under operating voltage of 6.0 V.

Image of FIG. 3.
FIG. 3.

(a) Current density-voltage-luminance and (b) efficiency-current density curves of devices A and B. The inset shows the CIE coordinates of the QD-LEDs with respect to the color triangle of NTSC.

Image of FIG. 4.
FIG. 4.

(a) PL spectra of TCTA, CBP, and ZnSe/ZnS QDs and absorption spectrum of the QDs in toluene; (b) and (c) represent the TRPL of CBP in QD/CBP and TCTA in QD/TCTA films, respectively.

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/content/aip/journal/apl/103/5/10.1063/1.4817086
2013-07-30
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: High color purity ZnSe/ZnS core/shell quantum dot based blue light emitting diodes with an inverted device structure
http://aip.metastore.ingenta.com/content/aip/journal/apl/103/5/10.1063/1.4817086
10.1063/1.4817086
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