Size-Controllable Growth of Single Crystal In(OH)3 and In2O3 Nanocubes

Tang, Qun; Zhou, Wenjia; Zhang, Wu; Ou, Shaomin; Jiang, Ke; Yu, and Weichao; Qian, Yitai

doi:10.1021/cg049914d

Cited by 218 publications

(117 citation statements)

References 21 publications

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“…5 consist of a blue-green band at 2.65 eV in the case of powder and of bands at 2.65 and 3.17 eV in the case of nanowires. The blue-green emission has also been reported in different In 2 O 3 nanostructures 17,18,20,21 while the PL band peak in the range 3.1-3.2 eV has been observed in nanowires. 7,22 The CL spectra recorded in the samples treated with the second step annealing at 650°C are similar to that shown in Fig.…”

Section: -2mentioning

confidence: 76%

“…Also the cubes grown in this work appear at the top of a long rod which differs from previously reported In 2 O 3 nanocubes grown by a hydrothermal method. 18 Since the starting material in the growth process is InN, compositional analysis of the arrows and other structures has been performed, by x-ray microanalysis in SEM, in order to determine the possible presence of nitrogen. Nitrogen was detected in all cases in amounts ranging from about 0.4 at.…”

Section: Growth and Luminescence Of Elongated In 2 O 3 Micro-and Nanomentioning

confidence: 99%

“…The blue-green band has been attributed to oxygen vacancies 5,17,18,21 and the 3.1 eV to near band edge emission 22 and to defects generated during growth. 7 The CL results indicate that the samples treated with a second step at 600°C, contain a higher amount of defects related to oxygen vacancies than those treated at 650°C, which exhibit well formed structures.…”

Section: -2mentioning

confidence: 99%

See 2 more Smart Citations

Growth and luminescence of elongated In2O3 micro- and nanostructures in thermally treated InN

Măgdaş

Cremades

Piqueras

2006

Applied Physics Letters

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Indium oxide elongated micro- and nanostructures have been grown by thermal treatment of InN powder. Chains of nanopyramids connected by nanowires, forming a necklace-like structure, as well as cubes and arrow-like structures consisting of a long rod with a micron size pyramid on the top, grow at temperatures in the range 600–700°C in a catalyst free process. The structures have been characterized by scanning electron microscopy and cathodoluminescence.

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Section: -2mentioning

confidence: 76%

Section: Growth and Luminescence Of Elongated In 2 O 3 Micro-and Nanomentioning

confidence: 99%

Section: -2mentioning

confidence: 99%

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Growth and luminescence of elongated In2O3 micro- and nanostructures in thermally treated InN

Măgdaş

Cremades

Piqueras

2006

Applied Physics Letters

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“…This ion has also attracted significant research attention due to its potential application as biological sensors, phosphors, electroluminescent devices, optical amplifiers or lasers when used as doping in a variety of materials 10,11 . Dutta et al 12 showed Indium hydroxides with different morphology such as spheres 13 , flowers 14,15 , cubes [16][17][18][19][20][21][22] , rods 23,24 , etc., have been synthesized by several synthesis methods. The physical and chemical properties of these powders can be influenced by particle shape and size distribution, which depend on the synthesis method.…”

Section: Introductionmentioning

confidence: 99%

Optical characterization of europium-doped indium hydroxide nanocubes obtained by Microwave-Assisted Hydrothermal method

et al. 2014

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Crystalline europium-doped indium hydroxide (In(OH) 3 :Eu) nanostructures were prepared by rapid and efficient Microwave-Assisted Hydrothermal (MAH) method. Nanostructures were obtained at low temperature. FE-SEM images confirm that these samples are composed of 3D nanostructures. XRD, optical diffuse reflectance and photoluminescence (PL) measurements were used to characterize the products. Emission spectra of europium-doped indium hydroxide (IH:xEu) samples under excitation (350.7 nm) presented broad band emission regarding the indium hydroxide (IH) , but the luminescence is drastically quenched for the IH matrix.

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“…Over the past decade, attention has focused on the preparation of nanomaterials with controlled sizes and morphologies [1][2][3], which are important in determining the properties of the materials. Unfortunately, real time growth mechanisms for this controlled synthesis remain unclear.…”

mentioning

confidence: 99%

Kinetic investigation of in situ growth of CdMoO4 nano-octahedra

Jiang

Fan

et al. 2011

Chin. Sci. Bull.

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CdMoO 4 nano-octahedra were grown in situ at room temperature by reverse-microemulsion. Energy evolution from this growth process was monitored using microcalorimetry. The microcalorimetric heat flow (MCHF) curve showed a characteristic endothermic peak for the initial reaction, and double discontinuous exothermic peaks for the subsequent crystal growth. Combined with complementary characterization techniques, the evolution of morphology and size of the CdMoO 4 nano-octahedra were correlated with the MCHF peaks. Calculations based on the microcalorimetric results at 298.15 K provided rate constants of 7.56×10 -5 s -1 for the reaction and nucleation process and 1.59×10 -4 s -1 for the crystallization process. Over the past decade, attention has focused on the preparation of nanomaterials with controlled sizes and morphologies [1-3], which are important in determining the properties of the materials. Unfortunately, real time growth mechanisms for this controlled synthesis remain unclear. Consequently, clarification of the aggregation pathways and thermodynamics of in situ growth of nanoparticles is critical. Several methods have been used to explore the aggregation pathways during crystal growth, such as classical crystallization kinetic theory [4], in situ electron microscopy [5][6][7], scanning tunneling microscopy [8,9], in situ ellipsometry [10], in situ synchrotron X-ray absorption [11], and quartz crystal microbalance in combination with in situ X-ray photoelectron spectroscopy [12]. However, these methods cannot be used to evaluate instantaneous information from the non-equilibrium growth of nanomaterials. Moreover, they are expensive, carried out under harsh conditions, lack universality, and do not provide information on energetics. Thus, alternative methods are required to determine the energy evolution during synthesis of nanomaterials. This information could be used to effectively control the *Corresponding author (email: huangzyhappy@163.com) size distribution, structure and growth directions of nanoparticles.Calorimetry is an effective method to measure the changes in heat associated with crystal growth [13,14]. The major advantage of this method is that the system will not be disturbed during measurements. Additionally, continuous and accurate recordings can be provided on energy evolution in the system. In situ microcalorimetry has been used to systematically study the thermochemical and thermokinetic properties of the synthesis process and crystal growth of rare-earth complexes [15][16][17]. This method has also been applied to the zeolite and silica system, and used to delineate the relationship between thermodynamic factors and changes in the solution chemistry and interface properties [18][19][20][21][22][23][24]. The formation mechanism of MCM-41 mesoporous silica was also investigated using microcalorimetry [25]. In addition, microcalorimetry has been used to determine standard molar enthalpies [26] and the surface and interface enthalpies [27]. It is therefore reasonable to apply calorime...

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Size-Controllable Growth of Single Crystal In(OH)₃ and In₂O₃ Nanocubes

Cited by 218 publications

References 21 publications

Growth and luminescence of elongated In2O3 micro- and nanostructures in thermally treated InN

Growth and luminescence of elongated In2O3 micro- and nanostructures in thermally treated InN

Optical characterization of europium-doped indium hydroxide nanocubes obtained by Microwave-Assisted Hydrothermal method

Kinetic investigation of in situ growth of CdMoO4 nano-octahedra

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