Characterization of vapor-phase-grown ZnSe nanoparticles

Demetrius Sarigiannis; John D. Peck; George Kioseoglou; Athos Petrou; T. J. Mountziaris

doi:10.1063/1.1481769

Characterization of vapor-phase-grown ZnSe nanoparticles

Demetrius Sarigiannis
, John D. Peck
, George Kioseoglou
, Athos Petrou
, T. J. Mountziaris

Physics

SUNY Buffalo

Research output: Contribution to journal › Article › peer-review

106 Scopus citations

Abstract

ZnSe nanoparticles were synthesized by reacting vapors of (CH ₃)₂Zn:N(C₂H₅)₃ and H ₂Se, diluted in H₂, in an opposed flow reactor operating at room temperature and 120 Torr. The particles were collected as random aggregates on silicon substrates and transmission electron microscopy (TEM) grids placed downstream of the reaction zone. Particle characterization using TEM and electron diffraction revealed the presence of polycrystalline nanoparticles with diameter of about 40 nm that were apparently formed from coagulation of smaller nanocrystals with characteristic size of about 4 nm. Raman spectra of the nanoparticles revealed an asymmetrically broadened feature associated with the LO phonon of ZnSe, indicating the presence of smaller single-crystalline grains.

Original language	English
Pages (from-to)	4024-4026
Number of pages	3
Journal	Applied Physics Letters
Volume	80
Issue number	21
DOIs	https://doi.org/10.1063/1.1481769
State	Published - May 27 2002

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title = "Characterization of vapor-phase-grown ZnSe nanoparticles",

abstract = "ZnSe nanoparticles were synthesized by reacting vapors of (CH 3)2Zn:N(C2H5)3 and H 2Se, diluted in H2, in an opposed flow reactor operating at room temperature and 120 Torr. The particles were collected as random aggregates on silicon substrates and transmission electron microscopy (TEM) grids placed downstream of the reaction zone. Particle characterization using TEM and electron diffraction revealed the presence of polycrystalline nanoparticles with diameter of about 40 nm that were apparently formed from coagulation of smaller nanocrystals with characteristic size of about 4 nm. Raman spectra of the nanoparticles revealed an asymmetrically broadened feature associated with the LO phonon of ZnSe, indicating the presence of smaller single-crystalline grains.",

author = "Demetrius Sarigiannis and Peck, \{John D.\} and George Kioseoglou and Athos Petrou and Mountziaris, \{T. J.\}",

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T1 - Characterization of vapor-phase-grown ZnSe nanoparticles

AU - Sarigiannis, Demetrius

AU - Peck, John D.

AU - Kioseoglou, George

AU - Petrou, Athos

AU - Mountziaris, T. J.

PY - 2002/5/27

Y1 - 2002/5/27

N2 - ZnSe nanoparticles were synthesized by reacting vapors of (CH 3)2Zn:N(C2H5)3 and H 2Se, diluted in H2, in an opposed flow reactor operating at room temperature and 120 Torr. The particles were collected as random aggregates on silicon substrates and transmission electron microscopy (TEM) grids placed downstream of the reaction zone. Particle characterization using TEM and electron diffraction revealed the presence of polycrystalline nanoparticles with diameter of about 40 nm that were apparently formed from coagulation of smaller nanocrystals with characteristic size of about 4 nm. Raman spectra of the nanoparticles revealed an asymmetrically broadened feature associated with the LO phonon of ZnSe, indicating the presence of smaller single-crystalline grains.

AB - ZnSe nanoparticles were synthesized by reacting vapors of (CH 3)2Zn:N(C2H5)3 and H 2Se, diluted in H2, in an opposed flow reactor operating at room temperature and 120 Torr. The particles were collected as random aggregates on silicon substrates and transmission electron microscopy (TEM) grids placed downstream of the reaction zone. Particle characterization using TEM and electron diffraction revealed the presence of polycrystalline nanoparticles with diameter of about 40 nm that were apparently formed from coagulation of smaller nanocrystals with characteristic size of about 4 nm. Raman spectra of the nanoparticles revealed an asymmetrically broadened feature associated with the LO phonon of ZnSe, indicating the presence of smaller single-crystalline grains.

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U2 - 10.1063/1.1481769

DO - 10.1063/1.1481769

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SN - 0003-6951

VL - 80

SP - 4024

EP - 4026

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 21

ER -

Characterization of vapor-phase-grown ZnSe nanoparticles

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