Nanocomposite p-n Junction Polycarbazole CdSe/TiO2 Thin Films on ITO via Electrochemical Crosslinking

被引：6
作者：
Frau, Antonio F. [1 ,2 ]
Park, Yushin [1 ,2 ]
Pernites, Roderick B. [1 ,2 ]
Advincula, Rigoberto C. [1 ,2 ,3 ]
机构：
[1] Univ Houston, Dept Chem, Houston, TX 77204 USA
[2] Univ Houston, Dept Chem & Biomol Engn, Houston, TX 77204 USA
[3] Case Western Reserve Univ, Dept Macromol Sci & Engn, Cleveland, OH 44106 USA
来源：
MACROMOLECULAR MATERIALS AND ENGINEERING | 2012年 / 297卷 / 09期
基金：
美国国家科学基金会;
关键词：
electropolymerization; junctions; layers; PLED; quantum dots; RAY PHOTOELECTRON-SPECTROSCOPY; LIGHT-EMITTING-DIODES; CDSE NANOCRYSTALS; ANODIC-OXIDATION; ALKANEPHOSPHONIC ACIDS; CONJUGATED POLYMERS; ELECTRON-TRANSFER; TIO2; ELECTRODES; CARBAZOLE; SURFACE;
D O I：
10.1002/mame.201100313
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The fabrication and characterization of a hybrid polymer p-n junction-type thin film via electropolymerization of NPs and a precursor polymer is described. Blends of TiO2 NPs, CdSe NCs, Cbz-COOH, and PVK were utilized to enable electrochemical deposition on ITO glass substrates. Spectroscopic, microscopic, and wetting measurements confirmed thin film fabrication. CV yielded a CPN nanocomposite with electropolymerized (i.e., crosslinked) carbazole units embedding CdSe NCs. Absorption and emission measurements confirmed a charge transfer mechanism between the crosslinked carbazole and the NCs resulting in a p-n junction-type thin film on ITO; with the observed quenching of CdSe NC emission. Several possible applications of such thin films are also discussed.
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页码：875 / 886
页数：12
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