Super Sensitization: Grand Charge (Hole/Electron) Separation in ATC Dye Sensitized CdSe, CdSe/ZnS Type-I, and CdSe/CdTe Type-II Core-Shell Quantum Dots

2014 ◽  
Vol 20 (41) ◽  
pp. 13305-13313 ◽  
Author(s):  
Tushar Debnath ◽  
Partha Maity ◽  
Hirendra N. Ghosh
Keyword(s):  
Quantum Dots ◽  
Charge Hole ◽  
Core Shell ◽  
Type I ◽  
Type Ii ◽  
Dye Sensitized

Interfacial strain effect on type-I and type-II core/shell quantum dots

2016 ◽  
Vol 97 ◽  
pp. 489-494 ◽  
Author(s):  
Negar Gheshlaghi ◽  
Hadi Sedaghat Pisheh ◽  
M. Rezaul Karim ◽  
Derya Malkoc ◽  
Hilmi Ünlü
Keyword(s):  
Quantum Dots ◽  
Strain Effect ◽  
Core Shell ◽  
Type I ◽  
Type Ii ◽  
Interfacial Strain

Shell-Thickness-Dependent Biexciton Lifetime in Type I and Quasi-Type II CdSe@CdS Core/Shell Quantum Dots

2018 ◽  
Vol 122 (25) ◽  
pp. 14091-14098 ◽  
Author(s):  
Degui Kong ◽  
Yanyan Jia ◽  
Yueping Ren ◽  
Zhaoxiong Xie ◽  
Kaifeng Wu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Shell Thickness ◽  
Core Shell ◽  
Type I ◽  
Type Ii

Synthesis of Type-I CdTe Core and Type-II CdTe/CdS Core/Shell Quantum Dots by a Hydrothermal Method and Their Optical Properties

2017 ◽  
Vol 90 (1) ◽  
pp. 52-58 ◽  
Author(s):  
Taichi Watanabe ◽  
Kohji Takahashi ◽  
Kunio Shimura ◽  
Hang-Beom Bu ◽  
Kim Hyeon-Deuk ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Hydrothermal Method ◽  
Core Shell ◽  
Type I ◽  
Type Ii ◽  
Cdte Core

scholarly journals Synthesis of Reabsorption-Suppressed Type-II/Type-I ZnSe/CdS/ZnS Core/Shell Quantum Dots and Their Application for Immunosorbent Assay

2017 ◽  
Vol 12 (1) ◽  
Author(s):  
Sheng Wang ◽  
Jin Jie Li ◽  
Yanbing Lv ◽  
Ruili Wu ◽  
Ming Xing ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Immunosorbent Assay ◽  
Core Shell ◽  
Type I ◽  
Type Ii

scholarly journals Interface Strain Effects on ZnSe/ (CdSe) based Type I and ZnSe/CdS Type II Core/Shell Quantum Dots

2016 ◽  
Vol 102 ◽  
pp. 152-163 ◽  
Author(s):  
Negar Gheshlaghi ◽  
Hadi Sedaghat Pisheh ◽  
M. Rezaul Karim ◽  
Hilmi Ünlü
Keyword(s):  
Quantum Dots ◽  
Core Shell ◽  
Type I ◽  
Type Ii ◽  
Strain Effects ◽  
Interface Strain

scholarly journals Phonon Characterization, Structural and Optical Properties of Type-II CdSe/CdTe core/shell and Type-II/type-I CdSe/CdTe/ZnS core/shell/shell Quantum Dots

2020 ◽  
Vol 36 (3) ◽  
Author(s):  
Nguyen Xuan Ca ◽  
Nguyen Thi Hien
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Excitation Power ◽  
Cubic Phase ◽  
Core Shell ◽  
Type I ◽  
Type Ii ◽  
X Ray Diffraction ◽  
Cdte Core ◽  
Observation Results

The CdSe, type-II CdSe/CdTe core/shell and type-II/type-I CdSe/CdTe/ZnS core/shell/shell  quantum dots (QDs) were successfully synthesized in a noncoordinating solvent. The phonon characterizations, optical properties and structures of the synthesized QDs were characterized by Raman scattering (RS) spectra, photoluminescence (PL) spectroscopy, PL-decay lifetime, absorption spectroscopy (Abs), and X-ray diffraction (XRD). The growth of QDs was monitored by using RS, which demonstrated the formation of correct of the core/shell and core/shell/shell structures. Observation results from XRD reveal that all QDs crystallize in the cubic phase with zinc-blende structure. The typical characteristics of spatially indirect recombination for type-II QDs were observed through Abs and PL spectroscopy. The ZnS shell significantly enhanced the PL quantum yeild (QY), the optical durability, the chemical stability and separating CdSe/CdTe QDs from the surroundings. The effect of excitation power on the PL properties of the CdSe core,  CdSe/CdTe and CdSe/CdTe/ZnS QDs has been investigated.

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