Schottky junction UV photodetector based on CdS and visible photodetector based on CdS:Cu quantum dots

Kakati, Jumi; Datta, Pranayee

doi:10.1016/j.ijleo.2015.05.054

Cited by 11 publications

(2 citation statements)

References 22 publications

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“…Inserting the single Cd vacancy, S vacancy or Cd interstitial introduces a red shift to the peak n 2 (4.70, 4.44 and 4.61 eV). Cu-doped CdS-based materials have been applied to optoelectronic detectors widely [35]. Hence, this calculation finds a new approach for Cu-doped CdS optoelectronic detectors to regulate detection ranges.…”

Section: -P3mentioning

confidence: 99%

The effect of defects on Cu-doped CdS: A first-principles study

Liu¹,

Lian²,

Zhao³

et al. 2017

EPL

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With the first-principles method based on the density functional theory (DFT), we study the effect of defects on Cu-doped CdS. A single Cd vacancy, S vacancy or Cd interstitial is inserted into the Cd34Cu2S36 crystal structure, respectively. Band structures and the density of states (DOS) are calculated to investigate the effect of various defects on the electronic structures, which are considered to be associated with magnetic properties and optical properties. It turns out that the Cd vacancy, S vacancy and Cd interstitial have a significant influence on the ferromagnetic (FM) stability and optical properties. These results provide an approach to utilize Cu-doped CdS-based materials used as spintronics and optoelectronic devices efficiently.

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Section: -P3mentioning

confidence: 99%

The effect of defects on Cu-doped CdS: A first-principles study

Liu¹,

Lian²,

Zhao³

et al. 2017

EPL

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show abstract

“…For example, Viswanatha et al 26 showed that Cu-related emission tunability in an "inverted" core/shell structure ZnSe/CdSe can be achieved ranging from ∼1.3 to ∼2.7 eV by simply changing the dimension of both the core and/or shell as depicted in Figure 1. These very properties make Cu-doped NCs potential candidates for applications like photodetectors, 27,28 lightemitting diodes (LEDs), 18,23 photovoltaics, 29 and recently in luminescent solar concentrators. 30,31 However, Cu is known to exist in +1 and +2 oxidation states and a fundamental understanding of the oxidation state is critical to enhance our perception toward the emission mechanism.…”

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confidence: 99%