Quenching of quantum dots luminescence under light irradiation and its influence on the biological application
Quenching of quantum dots luminescence under light irradiation and its influence on the biological application
复制标题
光照射下量子点发光的猝灭及其对生物应用的影响
DOI：
10.1088/1742-6596/784/1/012014
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
P. S. Samokhvalov
中科院分区：
文献类型：
--
作者：
K. V. Vokhmintcev;C. Guhrenz;N. Gaponik;I. Nabiev;P. S. Samokhvalov
量子点在强辐射下的稳定性限制了其应用。我们已经研究了核/壳量子点光致发光的稳定性下的典型的实验室或工业环境的照射。我们的研究结果表明，量子点的光致发光的稳定性是由其壳层的结构和厚度，后者的因素有最强的量子点的耐辐照性的影响。结果表明，所观察到的量子点的光降解基本上是由量子点外的激发电荷载流子的转移引起的。载流子隧穿长度的增加已被证明是防止QD光致发光淬灭的有效方式。氯仿量子点溶液应避免在光照下保存，因为会降低其生物适用性。
Applications of quantum dots (QDs) can be limited by their stability under intensive irradiation. We have studied the stability of core/shell QD photoluminescence under the irradiation typical for the laboratory or industrial environment. Our results show that QD photoluminescence stability is determined by the structure and thickness of their shell; the latter factor has the strongest effect on the QD resistance to irradiation. It has been shown that the observed photodegradation of QDs is basically caused by the transfer of excited charge carriers outside the QD. An increase in the carrier tunneling length has been shown to be an efficient way to prevent quenching of QD photoluminescence. Storage of chloroform QDs solution under the light should be avoided due to the decrease of the biological applicability.
影响因子：
11.4
作者：
Carlos Martín;M. A. Baltanás;A. Cassano
通讯作者：
A. Cassano