The world’s best dye
Quantum dots are tiny nanocrystals with extraordinary optical and electrical properties with possible uses in dye production, bioimaging, and solar energy production. Researchers at the University of Illinois at Chicago have developed a way to introduce precisely four copper ions into each and every quantum dot.
The introduction of these “guest” ions, called doping, opens up possibilities for fine-tuning the optical properties of the quantum dots and producing spectacular colors.
“When the crystallinity is perfect, the quantum dots do something that no one expected–they become very emissive and end up being the world’s best dye,” says Preston Snee, assistant professor of chemistry at UIC and principal investigator on the study.
The results are reported in the journal ACS Nano, available online in advance of print publication.
Incorporating guest ions into the crystal lattice can be very challenging, says UIC graduate student Ali Jawaid, first author of the paper.
Controlling the number of ions in each quantum dot is tricky. Merely targeting an average number of guest ions will not produce quantum dots with optimal electrical and optical properties.
Jawaid developed a procedure that reliably produces perfect quantum dots, each doped with exactly four copper ions. Snee believes the method will enable them to substitute other guest ions with the same consistent results.
“This opens up the opportunity to study a wide array of doped quantum dot systems,” he said.
The Latest Bing News on:
Quantum dots
- Intel's quantum leap in wafer-wide cryo-testing sets cool new standardon May 8, 2024 at 2:47 am
Spin qubit arrays have reached a handful quantum dots, Intel says, but for practical quantum applications, the physical qubit count will need to be increased substantially. This calls for fabrication ...
- Europe Quantum Processors Market Forecast to Register 17.53% CAGR During 2023-2033, Despite High Cost of Development and Implementationon May 7, 2024 at 6:39 pm
Dublin, May 08, 2024 (GLOBE NEWSWIRE) -- The "Europe Quantum Processors Market: Focus on Application, Type, Business Model, and Country - Analysis and Forecast, 2023-2033" report has been added to ...
- Philips Evnia 49-inch QD OLED curved gaming monitoron May 7, 2024 at 7:25 am
Philips monitors has l:aunched a new 49-inch QD OLED curved gaming monitor in the form of the Philips Evnia 49M2C8900 ...
- Million qubits chip a possibility, could enable practical quantum computerson May 7, 2024 at 5:28 am
The breakthrough opens the door to integrating millions of qubits on a single chip using mature manufacturing processes. For practical quantum computers to become a reality, breakthroughs like this ...
- The quantum revolution may be just around the corner — Congress should acton May 4, 2024 at 5:00 am
In November, the House Science Committee voted unanimously to reauthorize the 2018 National Quantum Initiative. The bill has been stuck in Congress ever since. If passed by Congress, it would ...
- A science-based afterlife: Can quantum entanglement save my failing body? - opinionon May 4, 2024 at 3:13 am
Will quantum biology finally provide a fact-based explanation reconciling the supernatural with the physical world?
- One step closer to a sci-fi reality—NASA announces funding for a quantum dot solar sail and a levitating train on the Moonon May 3, 2024 at 8:22 am
Other potential projects set to receive additional funding include a pulsed plasma rocket, a "fluidic telescope" designed to be a space-based optical observatory, and a radioisotope thermoradiative ...
- Study unveils 3D printing PQD-polymer architectures at room temperatureon May 2, 2024 at 7:52 am
A technology enabling the fabrication of intricate three-dimensional (3D) quantum dot (QD)-based structures at room temperature has been developed.
- Unraveling the efficiency losses and improving methods in quantum dot-based infrared up-conversion photodetectorson May 1, 2024 at 1:33 pm
A new publication from Opto-Electronic Science; DOI 10.29026/oes.2024.230029 discusses unraveling the efficiency losses and improving methods in quantum dot-based infrared up-conversion photodetectors ...
- Stunning image shows atoms transforming into quantum waves — just as Schrödinger predictedon May 1, 2024 at 7:43 am
A new imaging technique, which captured frozen lithium atoms transforming into quantum waves, could be used to probe some of the most poorly understood aspects of the quantum world.
The Latest Google Headlines on:
Quantum dots
[google_news title=”” keyword=”quantum dots” num_posts=”10″ blurb_length=”0″ show_thumb=”left”]
The Latest Bing News on:
Doped quantum dot systems
- One step closer to a sci-fi reality—NASA announces funding for a quantum dot solar sail and a levitating train on the Moonon May 3, 2024 at 8:22 am
Other potential projects set to receive additional funding include a pulsed plasma rocket, a "fluidic telescope" designed to be a space-based optical observatory, and a radioisotope thermoradiative ...
- Unraveling the efficiency losses and improving methods in quantum dot-based infrared up-conversion photodetectorson May 1, 2024 at 1:33 pm
A new publication from Opto-Electronic Science; DOI 10.29026/oes.2024.230029 discusses unraveling the efficiency losses and improving methods in quantum dot-based infrared up-conversion photodetectors ...
- Stunning image shows atoms transforming into quantum waves — just as Schrödinger predictedon May 1, 2024 at 7:43 am
A new imaging technique, which captured frozen lithium atoms transforming into quantum waves, could be used to probe some of the most poorly understood aspects of the quantum world.
- New system boosts efficiency of quantum error correctionon April 28, 2024 at 5:00 pm
workable quantum systems out of bits that are so easily disturbed—and wiped of data—by tiny changes in their environment? Engineers have long struggled with how to make quantum computers less ...
- Researchers Transmit and Read Quantum Information for the First Timeon April 19, 2024 at 11:13 pm
Scientists and engineers have been toiling on quantum computing systems for decades with only limited success. While the hardware has become much more capable, there are still some fundamental ...
- Researchers Transmit and Read Quantum Information for the First Timeon April 17, 2024 at 5:00 pm
According to the study, this system relies on generating photons using semiconductor quantum dots, but making this system talk to the new quantum memory was no easy feat. The memory, known as ORCA ...
- Stretchable quantum dot displayon April 14, 2024 at 5:00 pm
The team announced the first development of intrinsically stretchable quantum dot light-emitting diodes ... any information through the EurekAlert system.
- Handling the heaton October 27, 2023 at 4:46 pm
Both bulk and quantum-well-based sources do not function well at high temperatures and this can cause severe problems for system designers. The quantum dot (QD) laser should, theoretically ...
- Quantum Processes Systems, and Informationon August 22, 2023 at 1:48 pm
A new and exciting approach to the basics of quantum theory, this undergraduate textbook contains extensive discussions of conceptual puzzles and over 800 exercises and problems. Beginning with three ...
- Quantum Computing Is Coming, And It’s Reinventing The Tech Industryon January 24, 2023 at 6:30 am
Last week, Australian engineers announced the discovery of a way to control electrons within quantum dots that run logic gates without the need for a large, bulky system. This could help with ...
The Latest Google Headlines on:
Doped quantum dot systems
[google_news title=”” keyword=”doped quantum dot systems” num_posts=”10″ blurb_length=”0″ show_thumb=”left”]