• one-step synthesis and optical evaluation of hollow cdse nanospheres with controllable morphology

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/01/01
    • تاریخ انتشار در تی پی بین: 1392/01/01
    • تعداد بازدید: 565
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     a straightforward one-step route was developed to synthesize hollow cdse nanospheres with adjustable inner and outer diameters. this proposed method was efficient and green because it adopted nontoxic trisodium citrate as stabilzing reagent, operated under ambient condition and only used water as reaction solvent. the desired hollow and grain-like cdse nanospheres could be synthesized by expediently regulating the reaction conditions. especially, this work focused on studying the influence of solution ph on the morphology and optical characteristics of the hollow cdse nanospheres, and discussing the formation mechanism using h2 bubbles as soft templates in detailed. the results suggested that the synchronous formation rate of initial cdse nanocrystals and h2 bubbles was the key to prepare hollow nanospheres. this facile one-step synthesis of hollow cdse nanospheres with controllable morphology and peculiar optical property will be a reference and can be spread to the synthesis of other hollow nanomaterials.

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