Monodisperse CdSe Nanorods at Low Temperatures

Nann, Thomas; Riegler, Jürgen

doi:10.1002/1521-3765(20021018)8:20<4791::aid-chem4791>3.0.co;2-h

Cited by 42 publications

(25 citation statements)

References 6 publications

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“…QDs have been reported (Crouch et al, 2003;Heine et al, 1998;Lou et al, 2004;Murray et al, 1993;Murray et al, 2000;Murray et al, 2001;Nordell et al, 2005;Park et al, 2004;Rosenthal et al, 2007;Yoon et al, 2005;Yu et al, 2005). The essential elements of these methods involve appropriate metallic or organometallic precursors (zinc, cadmium or mercury) with corresponding chalcogen precursors (sulfur, selenium or tellurium) in a coordinating solvent at high temperatures (Danek et al, 1994;Heine et al, 1998;Lou et al, 2004;Malik et al, 2005;Murray et al, 1993;Murray et al, 2000;Murray et al, 2001;Nann et al, 2002;Peng et al, 2001). The pyrolysis of organometallic precursors of cadmium and Se (or Te) introduced in (Murray et al, 1993;Murray et al, 2000) continues to be a wide used method for synthesizing CdSe or CdTe QDs.…”

Section: Synthesis Of Ii-vi Semiconductor Core/shell Qds and Encapsulmentioning

confidence: 99%

Semiconductor II-VI Quantum Dots with Interface States and Their Biomedical Applications

Torchynska¹,

Vorobiev²

2011

Advanced Biomedical Engineering

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Section: Synthesis Of Ii-vi Semiconductor Core/shell Qds and Encapsulmentioning

confidence: 99%

Semiconductor II-VI Quantum Dots with Interface States and Their Biomedical Applications

Torchynska¹,

Vorobiev²

2011

Advanced Biomedical Engineering

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“…[9][10][11][12] It was found that solvent, temperature, and reactant have significant effect on crystal structure and particle size of II-VI semiconductor nanoparticles, including CdS nanorods, ZnSe nanorods, CdS nanowires. [16,[89][90][91][92][93][94][95][96][97][98][99][100][101] Furthermore, wurtzite ZnSe and CdSe nanorods can also be synthesized by using n-butylamine, i.e., a monodentate amine, as solvent ( Fig. 1).…”

Section: Pure Solvent Systemmentioning

confidence: 99%

Synthesis of Semiconducting Functional Materials in Solution: From II‐VI Semiconductor to Inorganic–Organic Hybrid Semiconductor Nanomaterials

Yao

2008

Adv Funct Materials

116

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This Feature Article provides a brief overview of the latest development and emerging new synthesis solution strategies for II–VI semiconducting nanomaterials and inorganic‐organic semiconductor hybrid materials. Research on the synthesis of II–VI semiconductor nanomaterials and inorganic–organic hybrid semiconducting materials via solution strategies has made great progress in the past few years. A variety of II–VI semiconductor and a new family of [MQ(L)0.5] (M = Mn, Zn, Cd; Q = S, Se, Te; L = diamine, deta) hybrid nanostructures can be generated using solution synthetic routes. Recent advances have demonstrated that the solution strategies in pure solvent and a mixed solvent can not only determine the crystal size, shape, composition, structure and assembly properties, but also the crystallization pathway, and act as a matrix for the formation of a variety of different II–VI semiconductor and hybrid nanocomposites with diverse morphologies. These II–VI semiconductor nanostructures and their hybrid nanocomposites display obvious quantum size effects, unique and tunable optical properties.

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“…157 Differing structures have also been observed; intermittent addition of high concentrations of precursor (CdCl 2 and TBPSe) to a hot TOPO solution resulted in the formation of pyramid-type structures estimated at ca. 60 nm high, each side approximately 70 nm long.…”

Section: Anisotropic Quantum Dotsmentioning

confidence: 98%

The Preparation of II–VI Semiconductor Nanomaterials

2014

Semiconductor Quantum Dots

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Although nanoparticles (notably metals) can be traced to antiquity, the origins of modern semiconductor quantum dots (QDs) is a much later development. Specic advances in quantum-conned semiconductor particles can be traced to Grätzel, 1 who reported the synthesis of colloidal CdS to examine photo-corrosion, and Brus 2 who notably reported the band edge luminescence of the same material. At approximately the same time, Ekimov reported quantum connement in CuCl prepared in a silica glass, 3,4 while Henglein, an early pioneer of colloidal semiconductors, reported the synthesis of CdS on colloidal SiO 2 . 5 Fendler then reported the use of a reverse micelle to prepare CdS nanoparticles, 6 which was importantly improved on by Henglein, who used polyphosphates as a well-dened passivating agent, allowing nanoparticles to be processed and redispersed. 7The work described above utilised mainly inorganic salts as precursors in aqueous-based reactions. Consequently, the low temperatures used and the presence of air and water oen resulted in polydispersed materials with relatively poor optical and crystalline properties. The small number of available suitable precursors also reduced the number of systems that could be explored. The need to improve these reactions by removing air and water dictated the use of organic-based starting materials; however, inorganic reagents such as Na 2 Se could not easily be used in organic solvents so alternatives were required.Independently, Steigerwald pioneered many of the early chemical routes to bulk solid-state materials, 8 inspired by the early work on the deposition of

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Monodisperse CdSe Nanorods at Low Temperatures

Cited by 42 publications

References 6 publications

Semiconductor II-VI Quantum Dots with Interface States and Their Biomedical Applications

Semiconductor II-VI Quantum Dots with Interface States and Their Biomedical Applications

Synthesis of Semiconducting Functional Materials in Solution: From II‐VI Semiconductor to Inorganic–Organic Hybrid Semiconductor Nanomaterials

The Preparation of II–VI Semiconductor Nanomaterials

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