Research progress in the preparation of quantum dot films for optoelectronic devices

Colloidal quantum dots (CQDs) have been widely applied in the design and development of optoelectronic devices due to their controllable size, tunable band gap and inexpensive low temperature solution processing etc. However, the preparation method of quantum dots film is a critical part of the preparation process of optoelectronic devices, which can restrict the application of CQDs in optoelectronic devices. In this paper, different preparation technologies of CQDs film are summarized. The advantages and disadvantages of different preparation technologies of CQDs film are discussed to suggest suitable options for different CQDs film based optoelectronic devices.

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