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Red, green, and blue lasing enabled by single-exciton gain in colloidal quantum dot films

Patent ·
OSTI ID:1257995
The methods and materials described herein contemplate the use films of colloidal quantum dots as a gain medium in a vertical-cavity surface-emitting laser. The present disclosure demonstrates a laser with single-exciton gain in the red, green, and blue wavelengths. Leveraging this nanocomposite gain, the results realize a significant step toward full-color single-material lasers.
Research Organization:
BROWN UNIVERSITY, Providence, RI (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FG02-07ER46387
Assignee:
BROWN UNIVERSITY (Providence, RI)
Patent Number(s):
9,373,931
Application Number:
14/391,557
OSTI ID:
1257995
Country of Publication:
United States
Language:
English

References (44)

Quantum dots in biology and medicine journal October 2004
Electron–electron and electron‐hole interactions in small semiconductor crystallites: The size dependence of the lowest excited electronic state journal May 1984
Quantum dots versus organic dyes as fluorescent labels journal August 2008
Quantization of Multiparticle Auger Rates in Semiconductor Quantum Dots journal February 2000
Measurement of the size dependent hole spectrum in CdSe quantum dots journal April 1994
High-performance crosslinked colloidal quantum-dot light-emitting diodes journal May 2009
Gain and the threshold of three-dimensional quantum-box lasers journal September 1986
Single-exciton optical gain in semiconductor nanocrystals journal May 2007
Multiexcitons confined within a subexcitonic volume: Spectroscopic and dynamical signatures of neutral and charged biexcitons in ultrasmall semiconductor nanocrystals journal December 2003
Synthesis and Characterization of Highly Luminescent CdSe−Core CdS/Zn 0.5 Cd 0.5 S/ZnS Multishell Nanocrystals journal May 2005
Pseudopotential Theory of Auger Processes in CdSe Quantum Dots journal July 2003
Transient photoluminescence and simultaneous amplified spontaneous emission from multiexciton states in CdSe quantum dots journal August 2004
Multiparticle interactions and stimulated emission in chemically synthesized quantum dots journal April 2002
Efficient CdSe/CdS Quantum Dot Light-Emitting Diodes Using a Thermally Polymerized Hole Transport Layer journal March 2006
From amplified spontaneous emission to microring lasing using nanocrystal quantum dot solids journal August 2002
Excitonic gain and laser emission in ZnSe-based quantum wells journal September 1992
Multidimensional quantum well laser and temperature dependence of its threshold current journal June 1982
Gain dynamics and excitonic transition in CdSe colloidal quantum dots journal September 2007
Quantum dot bioconjugates for imaging, labelling and sensing journal June 2005
Resonators and materials for organic lasers based on energy transfer journal January 1998
Full-colour quantum dot displays fabricated by transfer printing journal February 2011
Photocatalytic Hydrogen Production with Tunable Nanorod Heterostructures journal March 2010
Gain Control in Semiconductor Quantum Dots via State-Resolved Optical Pumping journal March 2009
Exciton-Exciton Interaction and Optical Gain in Colloidal CdSe/CdS Dot/Rod Nanocrystals journal August 2009
Zero- to one-dimensional transition and Auger recombination in semiconductor quantum rods
  • Htoon, H.; Hollingsworth, J. A.; Malko, A. V.
  • Quantum Electronics and Laser Science (QELS). Postconference Digest, Postconference Digest Quantum Electronics and Laser Science, 2003. QELS. https://doi.org/10.1109/QELS.2003.237852
conference January 2003
Compositional Disorder-Induced Broadening for Free Excitons in II-VI Semiconducting Mixed Crystals journal October 1978
Multiexcitonic two-state lasing in a CdSe nanocrystal laser journal September 2004
(Zn,Cd)Se/ZnSe quantum-well lasers: Excitonic gain in an inhomogeneously broadened quasi-two-dimensional system journal April 1993
Semiconductor Lasers: Past, Present, and Future journal June 1996
Synthesis and characterization of nearly monodisperse CdE (E = sulfur, selenium, tellurium) semiconductor nanocrystallites journal September 1993
Some physical properties of ZnCdS solid solutions journal October 1976
Inkjet-Printed Quantum Dot-Polymer Composites for Full-Color AC-Driven Displays journal June 2009
Optical Gain and Stimulated Emission in Nanocrystal Quantum Dots journal October 2000
State-resolved manipulations of optical gain in semiconductor quantum dots: Size universality, gain tailoring, and surface effects journal October 2009
Large-Area Ordered Quantum-Dot Monolayers via Phase Separation During Spin-Casting journal July 2005
Scaling of multiexciton lifetimes in semiconductor nanocrystals journal May 2008
Electroluminescence from single monolayers of nanocrystals in molecular organic devices journal December 2002
Multiexciton fluorescence from semiconductor nanocrystals journal November 2005
Type-II Quantum Dots: CdTe/CdSe(Core/Shell) and CdSe/ZnTe(Core/Shell) Heterostructures journal September 2003
Bright, multicoloured light-emitting diodes based on quantum dots journal November 2007
Electrically driven light emission from single colloidal quantum dots at room temperature journal January 2007
Blue-green semiconductor lasers journal October 1994
Quantum dots in the strong confinement regime: a model system for gain in quasi-zero-dimensional semiconductors conference May 1996
Breaking the phonon bottleneck in nanometer quantum dots: Role of Auger-like processes journal January 1995

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