Chemistry and photophysics of thiol-stabilized II-VI semiconductor nanocrystals

2000 ◽  
Vol 72 (1-2) ◽  
pp. 179-188 ◽  
Author(s):  
Alexander Eychmüller ◽  
Andrey L. Rogach
Keyword(s):  
Crystal Structure ◽  
Optical Properties ◽  
Physical Properties ◽  
Semiconductor Nanocrystals ◽  
Size Quantization ◽  
Cubic Crystal ◽  
Quantization Effect ◽  
Size Regime ◽  
Mercury Chalcogenides ◽  
Size Quantization Effect

The chemical and physical properties of thiol-stabilized semiconductor nanocrystals are reviewed. The materials prepared include cadmium and mercury chalcogenides with sizes ranging between 1.4 and about 8 nm. In this size regime, the optical properties of the particles are governed by the size-quantization effect. All nanocrystals synthesized belong to the cubic crystal structure. Some applications of this class of materials are outlined.

Pressure modulates the phase stability and physical properties of zinc nitride iodine

RSC Advances ◽  
2015 ◽  
Vol 5 (96) ◽  
pp. 78754-78759 ◽  
Author(s):  
Xiaofeng Li ◽  
Lin Xue ◽  
Lijuan Tang ◽  
Ziyu Hu
Keyword(s):  
Crystal Structure ◽  
Optical Properties ◽  
Physical Properties ◽  
Density Function ◽  
Phase Stability ◽  
Chemical Bonding ◽  
Metal Nitride ◽  
Electronic And Optical Properties ◽  
Zinc Nitride ◽  
Bonding Characteristics

To explore new stable phases in metal nitride halides, the structural, electronic and optical properties, and chemical bonding characteristics of Zn2NI under pressure were studied on the basis of crystal structure predicting evolution and density function calculations.

The crystal structure of klyuchevskite, K3Cu3(Fe,Al)O2(SO4)4, a new mineral from Kamchatka volcanic sublimates

1992 ◽  
Vol 56 (384) ◽  
pp. 411-416 ◽  
Author(s):  
M. G. Gorskaya ◽  
S. K. Filatov ◽  
I. V. Rozhdestvenskaya ◽  
L. P. Vergasova
Keyword(s):  
Crystal Structure ◽  
Optical Properties ◽  
Physical Properties ◽  
Unit Cell ◽  
New Mineral ◽  
Strong Anisotropy ◽  
Structural Analogue ◽  
Optical Indicatrix ◽  
Space Group ◽  
Perfect Cleavage

AbstractThe crystal structure of klyuchevskite, K3Cu3(Fe,Al)O2(SO4)4, was determined in space group I2 using the total of 715 independent reflections up to R 0.12. Klyuchevskite is a structural analogue of piypite (caratiite) K4Cu4O2(SO4)4MeCl with the substitution K+ + Cu2+ → (Fe3+,Al) + MeCl. Compared to piypite, the ordering of Cu2+ and Fe3+ cations in the klyuchevskite structure results in the distortion of the unit cell and in lowering the symmetry of the chains to 1.This brings about a more compact packing of the chains. The chain-like arrangement of the structure determines physical properties of the mineral, its acicular habit, perfect cleavage, strong anisotropy of optical properties and orientation of optical indicatrix.

Size quantization effect in water-dispersible LEEH capped ZnSe nanocrystals

2021 ◽  
Author(s):  
Ansuman Nayak ◽  
Sukanta Kumar Triapthy ◽  
Nilesh Dalai ◽  
Swagat Kumar Nayak ◽  
Duryodhan Sahu
Keyword(s):  
Size Quantization ◽  
Water Dispersible ◽  
Quantization Effect ◽  
Znse Nanocrystals ◽  
Size Quantization Effect
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