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McGill University researchers set out to uncover the secrets of perovskite’s ability to act as a semiconductor, even with structural defects. In doing so, they have discovered what amounts to a new state of matter.
Perovskites have garnered attention in the last decade due to their ability to act as a semiconductor even with the presence of defects within the material’s crystal structure. Traditionally, semiconductors need near-perfect crystals to be effective, which requires ultraprecise (and costly and stringent) methods for their manufacture.
The distortion of the perovskite crystal lattice is followed by the formation of an exciton ‘quantum drop.’ Courtesy of Colin Sonnichsen.
“Historically, people have…