Method for fabrication of saturated RGB quantum dot light-emitting devices

  title={Method for fabrication of saturated RGB quantum dot light-emitting devices},
  author={Seth Coe-Sullivan and Jonathan S. Steckel and Leeann Kim and Moungi G. Bawendi and Vladimir Bulovi{\'c}},
  booktitle={SPIE OPTO},
Creation of patterned, efficient, and saturated color hybrid organic/inorganic quantum dot light emitting devices (QD-LEDs) is dependent on development of integrated fabrication and patterning methods for the QD layer. We show that micro-contact printing can be applied to QD deposition, generating micron-scale pattern definition, needed in pixilated-display applications. We demonstrate saturated color QD-LEDs with external quantum efficiencies in excess of 1%. Combining this technique with the… Expand
35.1: Invited Paper: Quantum Dot Light Emitting Devices for Pixelated Full Color Displays
Quantum dot light emitting devices (QD-LEDs) developed over the past four years demonstrate high external quantum efficiencies, saturated visible color emission, narrow-band infra-red emission, andExpand
Mist fabrication of light emitting diodes with colloidal nanocrystal quantum dots
In this letter, we report a mist-deposition process for the assembly and patterning of nanocrystal quantum dots (NQDs) during the fabrication of quantum dot light emitting diodes (QD-LEDs), whichExpand
Bright, multicoloured light-emitting diodes based on quantum dots
Quantum-dot-based LEDs are characterized by pure and saturated emission colours with narrow bandwidth, and their emission wavelength is easily tuned by changing the size of the quantum dots. However,Expand
The quantum dot has many applications, one of which is the light emitting diode. Quantum dot light emitting diodes were fabricated for their use in display technologies. The quantum dot lightExpand
Bright and color-saturated emission from blue light-emitting diodes based on solution-processed colloidal nanocrystal quantum dots.
We report a multilayer solution-processed blue light-emitting diode based on colloidal core/shell CdS/ZnS nanocrystal quantum dots (QDs). At a low-operating voltage of 5.5 V, the device emitsExpand
Improved brightness and color saturation for blue quantum-dot LEDs
The next generation of flat-panel displays and solid-state lighting will have challenges in the areas of maximizing efficiency, brightness, color saturation, area, and flexible-substrateExpand
Bright and color-saturated emission from blue light emitting diodes based on solution-processed colloidal nanocrystal quantum dots
  • Zhan'ao Tan, F. Zhang, +6 authors Linsong Li
  • Materials Science, Medicine
  • 2008 Conference on Lasers and Electro-Optics and 2008 Conference on Quantum Electronics and Laser Science
  • 2008
A bright and color-saturated blue light-emitting-diode based on colloidal core/shell-CdS/ZnS quantum-dots is reported, and Broad-band, long-wavelength emission from the deep-traps in QDs is minimized to less than 5% of the total emission. Expand
Efficient Red/Green/Blue Tandem Quantum-Dot Light-Emitting Diodes with External Quantum Efficiency Exceeding 21.
The demonstrated full-color tandem QLEDs, with extremely high efficiency, long operational lifetime, low roll-off efficiency, and high color purity, would be ideal candidates to bring Q LEDs into the next generation of full- color displays and the solid-state lighting market. Expand
Study of the converter based on photonic crystals filters and quantum dots for solar blind ultraviolet imaging system
Abstract. Miniaturization and high accuracy are the future directions of the solar-blind ultraviolet imaging system. Based on the principle of quantum dot photoluminescence and one-dimensionalExpand
Inverted CdSe/CdS/ZnS quantum dot light emitting devices with titanium dioxide as an electron-injection contact.
The studies on the time-resolved photoluminescence spectra of the QD-HTL composite structures showed that the energy transfer (ET) efficiencies from the two HTLs to theQD layer were similar and the charge separation between QDs andHTLs could be neglected. Expand


Tuning the performance of hybrid organic/inorganic quantum dot light-emitting devices
Abstract The luminescence of inorganic core-shell semiconductor nanocrystal quantum dots (QDs) can be tuned across much of the visible spectrum by changing the size of the QDs while preserving aExpand
Electroluminescence from single monolayers of nanocrystals in molecular organic devices
A hybrid light-emitting diode (LED) that combines the ease of processability of organic materials with the narrow-band, efficient luminescence of colloidal quantum dots (QDs) is demonstrated and a 25-fold improvement in luminescent efficiency is observed. Expand
Light-emitting diodes made from cadmium selenide nanocrystals and a semiconducting polymer
ELECTROLUMINESCENT devices have been developed recently that are based on new materials such as porous silicon1 and semiconducting polymers2,3. By taking advantage of developments in the preparationExpand
Nearly 100% internal phosphorescence efficiency in an organic light emitting device
We demonstrate very high efficiency electrophosphorescence in organic light-emitting devices employing a phosphorescent molecule doped into a wide energy gap host. UsingExpand
Self-Assembly of CdSe−ZnS Quantum Dot Bioconjugates Using an Engineered Recombinant Protein
A novel and direct method is described for conjugating protein molecules to luminescent CdSe−ZnS core−shell nanocrystals (Quantum Dots) for use as bioactive fluorescent probes in sensing, imaging,Expand
Chapter 1 Polymeric and Molecular Organic Light Emitting Devices: A Comparison
Publisher Summary This chapter focuses on light-emitting devices (LEDs) containing luminescent polymer thin films. The first LEDs-containing luminescent polymer thin films were demonstrated in 1990Expand
(CdSe)ZnS Core-Shell Quantum Dots - Synthesis and Characterization of a Size Series of Highly Luminescent Nanocrystallites
We report a synthesis of highly luminescent (CdSe)ZnS composite quantum dots with CdSe cores ranging in diameter from 23 to 55 A. The narrow photoluminescence (fwhm ≤ 40 nm) from these composite dotsExpand
Large-Area Ordered Quantum-Dot Monolayers via Phase Separation During Spin-Casting†
We investigate a new method for forming large-area (> cm2) ordered monolayers of colloidal nanocrystal quantum dots (QDs). The QD thin films are formed in a single step by spin-casting a mixedExpand
Quantum dot bioconjugates for ultrasensitive nonisotopic detection.
Highly luminescent semiconductor quantum dots (zinc sulfide-capped cadmium selenide) have been covalently coupled to biomolecules for use in ultrasensitive biological detection and these nanometer-sized conjugates are water-soluble and biocompatible. Expand
Novel Blue Organic Light Emitting Materials
The new blue light emitting materials containing anthracene were designed, synthesized and characterized. The materials were prepared in high yields by well-known reactions such as Grignard reaction,Expand