Nobel Chemistry Honors 'Quantum Dots' Revolutionizing Screen Colors

The Nobel Prize-Winning Quantum Dot Revolution

---

In a burst of acclaim for their groundbreaking work, scientists Moungi Bawendi, Louis Brus, and Aleksey Ekimov were bestowed with the prestigious 2023 Nobel Prize in Chemistry. Their remarkable discovery revolves around the tiniest clusters of atoms known as quantum dots, which have found their way into our lives, enriching the vibrant hues of flat screens, illuminating LED lamps, and aiding surgeons in visualizing blood vessels within tumors.

The Nobel Prize-awarding academy hailed the trio of U.S.-based scientists for their pioneering research on quantum dots, minuscule entities that bear a size relationship to a football akin to a football's size in relation to the Earth, playfully asserting that they had "infused nanotechnology with a burst of color."

These quantum dots, with their unique ability to alter the color of light based on particle size while maintaining the atomic structure, have been hailed as the architects of a dazzling future. Enthusiastic researchers anticipate their contributions to flexible electronics, diminutive sensors, slimmer solar cells, and secure encrypted quantum communication.

The Nobel Prize, a hallowed tradition dating back over a century, is bestowed by the esteemed Royal Swedish Academy of Sciences and carries with it a handsome reward of 11 million Swedish crowns ($1 million).

Johan Aqvist, Chair of the Nobel Committee for Chemistry, couldn't contain his fascination, describing one of the "captivating and extraordinary properties" of quantum dots as their ability to metamorphose light's hues solely through changes in particle size while preserving the atomic blueprint.

Overwhelmed by the honor, Bawendi confessed to feeling "astonished, drowsy, stunned, surprised, and profoundly honored" by the prestigious accolade. Brus, equally caught off guard, revealed that he initially ignored numerous phone calls as the news of his achievement broke.

However, there was a minor hiccup earlier in the day when the academy inadvertently disclosed the names of the laureates in a press release. Hans Ellegren, the academy's secretary-general, termed it "unfortunate," but affirmed that it did not impact the selection of the deserving Nobel laureates.

Quantum dot technology, the driving force behind the high-definition QLED TVs offered by industry giants like Samsung, Sony, and TCL, traces its origins back to the early 1980s work of Aleksey Ekimov.

Expressing his astonishment, Bawendi marveled at the commercial-scale production of these quantum wonders. "I could never have imagined that these things could be produced on such a massive scale," he remarked during a press conference at the Massachusetts Institute of Technology (MIT), where he serves as a professor.

Ekimov, a trailblazer in his own right, unraveled the mysteries of color changes in glass, driven by the size of copper chloride molecules contained within, all the while uncovering the role of subatomic forces at play.

In a phone interview with Reuters, 78-year-old Ekimov, originally hailing from the Soviet Union but later making his home in the U.S., expressed amazement at the evolution of flat-screen technology, something he couldn't have foreseen during his groundbreaking work in the 1980s. He humorously recalled, "Remember what a TV was back then!"

A few years later, Brus expanded on Ekimov's work, delving into microscopic particles suspended in liquids, emphasizing the collaborative nature of their efforts rather than a single "eureka!" moment.

Bawendi, in 1993, ushered in a revolution in quantum dot production, significantly enhancing their quality. This research paved the way for LEDs that mimic natural sunlight, casting aside the bluish tint that had previously deterred their adoption.

Brus, a professor emeritus at Columbia University, and Ekimov, affiliated with Nanocrystals Technology Inc in New York, each followed their unique paths in their journey to this illustrious recognition. Brus's extensive career includes a 23-year tenure at AT&T Bell Labs, where he devoted much of his time to the study of nanocrystals. He humbly stated, "I'm no genius; I'm far from it. But what matters is identifying the problems others may overlook and aren't working on."

Bawendi, born in Paris, recalled his humble beginnings as a chemistry student and the struggles he faced, including failing his initial chemistry exam. With a chuckle, he shared, "I scored 20 out of 100, the lowest in the class. I thought, 'Oh no, this is the end of me. What am I doing here?'"

This chemistry Nobel marks the third of the prestigious awards this year, following those in medicine and physics. Established as per the will of the eminent Swedish chemist and dynamite inventor Alfred Nobel, these prizes have been celebrated since 1901, honoring exceptional contributions in science, literature, and peace.

While the physics Nobel often claims the spotlight with iconic laureates like Albert Einstein, the chemistry laureates list boasts its own array of luminaries, including pioneers like Ernest Rutherford in radioactivity and Marie Curie, who also secured a Nobel Prize in physics.

($1 = 11.0225 Swedish crowns)

Source : Reuters (Reporting by Niklas Pollard and Ludwig Burger)