Investigation on structural and optical properties of CuO doped CdS-Zn3(PO4)2 nanocomposite for optoelectronic devices

Sreedevi, G.; Srinivas, K.; Subbarao, M. V.; Cole, Sandhya

doi:10.1016/j.molstruc.2020.128903

Cited by 5 publications

(1 citation statement)

References 43 publications

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“…One such oxide is copper oxide (CuO), a ptype semiconductor boasting an optical band gap (Eg) ranging from approximately 1.2 to 1.9 eV. CuO has garnered considerable attention due to its distinct properties, positioning it as a potential candidate for diverse applications like gas sensors [3,4,5], optoelectronic devices [6,7,8], solar cells [9,10,11], supercapacitors [12,13] and cells [14,15]. Previous studies have explored the enhancement of CuO chemical properties by investigating the impact of doping transition metals such as Li [16], Ni [17], Zn [18], Mn [19], and Cd [20], among others.…”

Section: Introductionmentioning

confidence: 99%

Time-Resolved Sensitivity of a Cadmium-Doped Copper Oxide Thin Film as a Chlorine Gas Detector

Alotibi,

Shirbeeny,

Alshahrie

et al. 2024

Adv. Sci. Technol. Res. J.

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Due to its strong affinity for chlorine gas, Cd can potentially form CdCl 2 . Cd-doped CuO thin films are sensitive to chlorine gas, as careful inclusion of Cd in the CuO crystal structure modifies the energy gap depending on the dopant concentration. We employed spray pyrolysis to deposit Cd-doped CuO on fluorine tin oxide (FTO) while heating the substrate to 500 °C. The X-ray diffraction (XRD) analysis revealed that Cd was interstitially incorporated in the CuO lattice structure, as verified by scanning electron microscopy (SEM) imaging. The photoluminescence study demonstrated that increasing the Cd concentration in CuO resulted in higher emission intensity, providing valuable insights into Cu 2+ and O 2energy levels. Exposing a Cd-doped CuO thin film to chlorine gas modifies the bandgap, depending on the Cd concentration. The fluctuation in the bandgap energy of copper oxide doped with cadmium indicates the chlorine gas concentration nearby. Time-resolved measurements for the I-V characteristics of the thin film revealed considerable current variation during the exposure to chlorine gas.

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