Scientists Solve Problem of Quantum Dot 'Blinking'

Quantum dots—tiny, intense, tunable sources of colorful light—are illuminating new opportunities in biomedical research, cryptography and other fields. But these semiconductor nanocrystals also have a secret problem, a kind of nervous tic. They mysteriously tend to “blink” on and off like Christmas tree lights, which can reduce their usefulness.

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<p><a href="http://www.physorg.com/news120333121.html">Scientists Solve Problem of Quantum Dot 'Blinking'</a></p> <p>Quantum dots—tiny, intense, tunable sources of colorful light—are illuminating new opportunities in biomedical research, cryptography and other fields. But these semiconductor nanocrystals also have a secret problem, a kind of nervous tic. They mysteriously tend to “blink” on and off like Christmas tree lights, which can reduce their usefulness.</p>