Mechanistic Study of the Role of Primary Amines in Precursor Conversions to Semiconductor Nanocrystals at Low Temperature |
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| Authors: | Dr Kui Yu Dr Xiangyang Liu Queena Y Chen Prof Huaqing Yang Prof Mingli Yang Xinqin Wang Prof Xin Wang Dr Hong Cao Dr Dennis M Whitfield Prof Changwei Hu Dr Ye Tao |
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| Affiliation: | 1. Key Laboratory of Green Chemistry and Technology, Ministry of Education, Sichuan University, Chengdu 610065 (P. R. China);2. National Research Council of Canada, Ottawa, ON, K1A 0R6 (Canada) |
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| Abstract: | Primary alkyl amines (RNH2) have been empirically used to engineer various colloidal semiconductor nanocrystals (NCs). Here, we present a general mechanism in which the amine acts as a hydrogen/proton donor in the precursor conversion to nanocrystals at low temperature, which was assisted by the presence of a secondary phosphine. Our findings introduce the strategy of using a secondary phosphine together with a primary amine as new routes to prepare high‐quality NCs at low reaction temperatures but with high particle yields and reproducibility and thus, potentially, low production costs. |
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| Keywords: | amines colloidal quantum dots nanocrystal precursor conversions phosphines semiconductor particles |
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