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Proceedings Paper

Light-emitting devices based on type-II InP/ZnO quantum dots (Conference Presentation)

Paper Abstract

Colloidal quantum dots (QDs) are intriguing materials due to their outstanding properties like spectral tunabilty, high quantum efficiency, narrow emission spectra and solution processability. Many past and on-going researches on quantum dot light-emitting devices (QLEDs) have led to achieving efficiency levels comparable to organic LEDs and semiconductor LEDs. However, most QLED studies are based on toxic QDs, which raises concerns about environmental and health issues. Our study demonstrates the application of a new non-toxic nanomaterial, InP/ZnO QDs, to LEDs. Integrating InP/ZnO QDs into device architecture, we produced low turn-on voltage (2.8 V), saturated color devices, which have luminance levels (600 cd/m2) suitable for display technology.

Paper Details

Date Published: 9 March 2020
Proc. SPIE 11302, Light-Emitting Devices, Materials, and Applications XXIV, 113021J (9 March 2020); doi: 10.1117/12.2545116
Show Author Affiliations
Onuralp Karatum, Koç Univ. (Turkey)
Houman Bahmani Jalali, Koç Univ. (Turkey)
Sadra Sadeghi, Koç Univ. (Turkey)
Rustamzhon Melikov, Koç Univ. (Turkey)
Shashi Bhushan Srivastava, Koç Univ. (Turkey)
Sedat Nizamoglu, Koç Univ. (Turkey)

Published in SPIE Proceedings Vol. 11302:
Light-Emitting Devices, Materials, and Applications XXIV
Jong Kyu Kim; Michael R. Krames; Martin Strassburg, Editor(s)

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