کوانتوم دات به زبان ساده - به زبان انگلیسی

Quantum dots (QDs), also called semiconductor nanocrystals, are semiconductor particles a few nanometres in size, having optical and electronic properties that differ from those of larger particles as a result of quantum mechanical effects. They are a central topic in nanotechnology and materials science. When the quantum dots are illuminated by UV light, an electron in the quantum dot can be excited to a state of higher energy. In the case of a semiconducting quantum dot, this process corresponds to the transition of an electron from the valence band to the conductance band. The excited electron can drop back into the valence band releasing its energy as light. This light emission (photoluminescence) is illustrated in the figure on the right. #نقاط_کوانتومی #کوانتوم #کوانتوم_دات #پوریازرشناس #پوریا_زرشناس #nobelprize #quantom #quantom_dot #pouryazarshenas #pourya_zarshenas

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