Quantum Confinement in CdTe Quantum Dots: Investigation through Cyclic Voltammetry Supported by Density Functional Theory (DFT)

Efficient electrogenerated chemiluminescence from CdTe quantum dots with coreactants

“…The electrochemical behavior of CdTe QDs shown in Fig. 1B is similar to other previous results [31,32]. CdTe QDs exhibited a reversible reduction wave from À0.8 V with a peak at À1.35 V during cathodic potential sweep.…”

Temperature Dependence of the Bandgap of CdTe/CdS Core–Shell Quantum Dots

“…17.4, we plotted our experimental data in comparison to the similar data of other authors [8,9,11,20] that were performed by cyclic voltammetry. A good correlation in the trend of the data between these studies and our own is observed.…”

Effect of shell thickness on electrochemical property of wurtzite CdSe/CdS core/shell nanocrystals

“…[15]. Herein, peak potentials, the points A and B shown in Figure 2, are adopted to calculate HOMO and LUMO levels since the peak potential represents a comprehensive effect which the electrochemical response comes from the ensemble of NCs cast on the electrode surface [5,9,11,13,16,[19][20][21].…”

“…In order to better understand the relationship between their structures and physical properties as well as to fabricate high-efficiency optoelectronic devices based on NCs, we urgently need to get information about the valence band edge (also called the highest occupied molecular orbital -HOMO) and conduction band edge (also called the lowest unoccupied molecular orbital -LUMO) position, defect distribution and electron transport characteristics of NCs. The band structure and electronic properties can be theoretically calculated with tight-binding (TB) model, effective mass approximation (EMA) and density functional theory (DFT) [4,5], these parameters estimated by experiments under specific conditions vary much from those. Some experimental methods, including photoemission spectroscopy in air (PESA) [6], ultraviolet and X-ray photoelectron spectroscopy (UPS and XPS) [7], scanning tunneling spectroscopy (STS) [8] and cyclic voltammetry (CV) [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24], exhibit the capability to measure the values of the NC's band structure parameters in special environment.…”