“quantum dot”的概念、定义、翻译、参考文献-科学参考

quantum dot

Physics

A quantum-mechanical system, usually made from a semiconductor, in which electrons can be confined into a small region a few nanometres in size containing a few thousand atoms. Such systems act as ‘artificial atoms’ with their own sets of quantum states for the electrons. Quantum dots have important potential practical applications. See also Nanophysics (Feature).

Chemistry

A nanoscale system usually made from a semiconductor that can be regarded as an ‘artificial atom’ since electrons can be confined into a region of a few nanometres. Quantum dots have their own sets of quantum states and shell structure for their electrons.

Electronics and Electrical Engineering

A semiconductor nanocrystal that is small enough for its properties to be dominated by quantum-mechanical effects and to be influenced strongly by parameters such as shape and size. Quantum dots are capable of emitting narrowband light at specific, tunable centre frequencies and hence are well suited to flatscreen display applications in which they can potentially offer both increased brightness and a wider range of colours. They are also capable of absorbing light of specific frequencies and are being investigated as a possible photovoltaic for use in solar cells.

单词	quantum dot
释义	quantum dot Physics A quantum-mechanical system, usually made from a semiconductor, in which electrons can be confined into a small region a few nanometres in size containing a few thousand atoms. Such systems act as ‘artificial atoms’ with their own sets of quantum states for the electrons. Quantum dots have important potential practical applications. See also Nanophysics (Feature). Chemistry A nanoscale system usually made from a semiconductor that can be regarded as an ‘artificial atom’ since electrons can be confined into a region of a few nanometres. Quantum dots have their own sets of quantum states and shell structure for their electrons. Electronics and Electrical Engineering A semiconductor nanocrystal that is small enough for its properties to be dominated by quantum-mechanical effects and to be influenced strongly by parameters such as shape and size. Quantum dots are capable of emitting narrowband light at specific, tunable centre frequencies and hence are well suited to flatscreen display applications in which they can potentially offer both increased brightness and a wider range of colours. They are also capable of absorbing light of specific frequencies and are being investigated as a possible photovoltaic for use in solar cells.
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