Selective Synthesis of Wurtzite CdSe Nanorods and Zinc Blend CdSe Nanocrystals through a Convenient Solvothermal Route

Liu, Yong; Qiu, Huayu; Xü, Yao; Wu, Dong; Li, MeiJiang; Jiang, Jianxiong; Lai, Guoqiao

doi:10.1007/s11051-006-9100-y

Cited by 24 publications

(10 citation statements)

References 33 publications

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“…However, the reactant NaSeO 3 is highly toxic. In 2007, Lai and co‐workers use Se powder, which is much less toxic than NaSeO 3 , as the Se source and en as the solvent to synthesize CdSe nanostructures 39. It was found that not only the structure, but also the morphology, of CdSe nanocrystals can be successfully tuned by changing the reactants’ compositions.…”

Section: Growth Of Cdse Nanostructuresmentioning

confidence: 99%

Growth and Device Application of CdSe Nanostructures

Zhao

Fang

2012

Adv Funct Materials

127

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Inorganic semiconductor nanostructures have attracted increasing interest in recent years because of their distinguishable role in fundamental studies and technical applications, mainly due to their size-and shape-dependent properties and fl exible processing methods. The use of such nanostructures in optic, optoelectric, and piezoelectric prospects is expected to play a crucial role in future nanoscale devices. Cadmium selenide (CdSe), a well-known direct bandgap II-VI semiconductor in which the bandgap favors absorption over a wide range of the visible spectrum, has been a promising material for applications in such fi elds as photodetectors, fi eld-effect transistors (FETs), fi eld emitters, solar cells, light-emitting diodes (LEDs), memory devices, biosensors, and biomedical imaging. The research on CdSe nanostructures has made remarkable progress in the last few years. The research activities on CdSe nanostructures including various methods for the synthesis of CdSe nanostructures and the unique properties and device applications of these nanostructures are reviewed. Potential future directions of this research area are also highlighted.

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Section: Growth Of Cdse Nanostructuresmentioning

confidence: 99%

Growth and Device Application of CdSe Nanostructures

Zhao

Fang

2012

Adv Funct Materials

127

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“…Growth of crystalline nanorods at high temperature was typically elucidated by Masahiro and Byrappa through the hydrothermal liquid–solid growth mechanism, through which it was clearly explained that the effect of nucleation and growth plays a crucial role to synthesize a nanoparticle with different morphologies. CdSe existing in the wurtzite form is an anisotropic material with a unique c -axis, and CdSe nanorods are generally prepared under the fast growth rate conditions. , To attain CdSe nanocrystals in distinct morphologies, high concentrations of single CdSe molecules are extensively required to enforce the nucleation and rate of crystal growth. However, with help of a complex reaction, it is simple and effective to control the nucleation and growth of the nanocrystals.…”

Section: Resultsmentioning

confidence: 99%

Temperature-Driven Morphology Control on CdSe Nanofractals and Its Influence over the Augmented Rate of H₂ Evolution: Charge Separation via the S-Scheme Mechanism with Incorporated Cu₃P

Ravi

Kumaravel

Subramanian

et al. 2021

ACS Appl. Energy Mater.

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The thermodynamically controlled synthesis of dendritic fractals and nanorods via the hydrothermal reaction has been described, and their extensive photocatalytic hydrogen production properties under simulated solar light have been demonstrated. The long-range and short-range growth of CdSe monomers has been controlled by varying the reaction temperature from 100 to 200 °C. Changes in the physical and optical properties of prepared dendrites and nanorods have been evidently proven with microscopic analysis, diffuse reflectance spectroscopy, and BET analysis. A high-surface area CdSe dendritic fractal has been incorporated with bifunctional Cu3P nanoparticles that resulted in a highly efficient photocatalyst construction. Consequently, a pivotal upswing in the photocatalytic performance of CdSe was found by the formation of the S-scheme heterojunction with Cu3P. The unique properties of transition-metal phosphides kept them as a highly capable co-catalyst to replace precious metals. The physicochemical properties of the prepared materials were characterized by X-ray diffraction, transmission electron microscopy, and X-ray photoelectron spectroscopy. The key challenge in the photocatalytic water splitting process is to develop an efficient photocatalyst not only with high chemical and photochemical stability but also with strong solar light absorption and effective charge separation ability. The co-catalyst Cu3P gives an effective path as it forms the S-scheme heterojunction with CdSe dendritic fractals. This enhances photoactivity and stability of the prepared composite. The composite made of CdSe and Cu3P showed a better rate of H2 production (92.1 mmol h–1 gcat –1) with 4% visible light to hydrogen conversion efficacy. The effects of Cu3P growth, size, and morphology of CdSe on the photocatalytic performance have been studied. Based on the material characterization and photocatalytic activity results, the working mechanism is also proposed.

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“…Dimensional reduction of CdQ by the incorporation of A2Qresem-bles size reduction of CdQ particles into the nanometer range [2]. Nanometer-sized CdQ materials have attracted extensive research efforts last two decades and are still garnering alot of attention [3][4][5]. The title compound is the first example of A/Cd/Q (A =alkali metal; Q=S,Se, Te) ternary compounds to be prepared by ahydro (or solvo) thermal method.…”

Section: Discussionmentioning

confidence: 99%

“…Until now, only the lattice parameters for K 2Cd3Se4 were reported, no complete structure determination was made [1]. The title crystal structure is composed of two-dimensional anionic layers (Cd 3 [6]. The (Cd 3 Se 4 ) n 2n-layer spreads out along the crystallographic b and c axes, with the repeating unit of aCd 3Se4 2-cluster (figure, top).…”

Section: Discussionmentioning

confidence: 99%

Refinement of the crystal structure of dipotassium tricadmium(II) tetraselenide, K2Cd3Se4

Kim¹,

Yun²,

Kim³

2011

Zeitschrift Für Kristallographie - New Crystal Structures

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Selective Synthesis of Wurtzite CdSe Nanorods and Zinc Blend CdSe Nanocrystals through a Convenient Solvothermal Route

Cited by 24 publications

References 33 publications

Growth and Device Application of CdSe Nanostructures

Growth and Device Application of CdSe Nanostructures

Temperature-Driven Morphology Control on CdSe Nanofractals and Its Influence over the Augmented Rate of H₂ Evolution: Charge Separation via the S-Scheme Mechanism with Incorporated Cu₃P

Refinement of the crystal structure of dipotassium tricadmium(II) tetraselenide, K2Cd3Se4

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Selective Synthesis of Wurtzite CdSe Nanorods and Zinc Blend CdSe Nanocrystals through a Convenient Solvothermal Route

Cited by 24 publications

References 33 publications

Growth and Device Application of CdSe Nanostructures

Growth and Device Application of CdSe Nanostructures

Temperature-Driven Morphology Control on CdSe Nanofractals and Its Influence over the Augmented Rate of H2 Evolution: Charge Separation via the S-Scheme Mechanism with Incorporated Cu3P

Refinement of the crystal structure of dipotassium tricadmium(II) tetraselenide, K2Cd3Se4

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Resources

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Temperature-Driven Morphology Control on CdSe Nanofractals and Its Influence over the Augmented Rate of H₂ Evolution: Charge Separation via the S-Scheme Mechanism with Incorporated Cu₃P