Time-resolved photoconductivity of PbSe nanocrystal arrays
Time-resolved photoconductivity of PbSe nanocrystal arrays
复制标题
DOI：
10.1021/jp0646123
复制
发表时间：
2006-12-21
影响因子：
3.3
通讯作者：
Nozik, Arthur J.
中科院分区：
文献类型：
--
作者：
Murphy, James E.;Beard, Matthew C.;Nozik, Arthur J.
我们利用时间分辨太赫兹光谱（TRTS）报道了化学处理的PbSe纳米线阵列的亚皮秒光电导动力学。TRTS允许的程度interdot电子耦合和载体的动态被同时提取。研究了以下结合到量子点表面的封端配体：肼、乙二胺、丁胺和苯胺。此外，用NaOH处理阵列。我们发现，治疗的影响程度的电子耦合和载流子动力学。
We report the sub-picosecond photoconductivity dynamics of chemically treated PbSe nanocrystal arrays utilizing time-resolved terahertz spectroscopy (TRTS). TRTS allows both the degree of interdot electronic coupling and the carrier dynamics to be extracted simultaneously. The following capping ligands bonded to the quantum dot surface were studied: hydrazine, ethylenediamine, butlyamine, and aniline. In addition, the arrays were treated with NaOH. We find that the treatments affect both the degree of electronic coupling and the carrier dynamics.