Cadmium sulfide in-situ derived heterostructure hybrids with tunable component ratio for highly sensitive and selective detection of ppb-level H2S

Gao, Yubing; Kong, Dehao; Han, Jiayin; Zhou, Weirong; Gao, Yuan; Wang, Tianshuang; Lu, Geyu

doi:10.1016/j.jcis.2022.07.052

Cited by 12 publications

(2 citation statements)

References 57 publications

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“…The complex designs resulting from this method underscore its potential in creating intricate nanostructures [32]. Hydrothermal techniques have synthesized pine-needle-like CdS/CdO nanocomposites [33].…”

Section: Introductionmentioning

confidence: 99%

Advanced Synthesis and Characterization of CdO/CdS/ZnO Heterostructures for Solar Energy Applications

Suchikova,

Kovachov,

Bohdanov

et al. 2024

Materials

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This study introduces an innovative method for synthesizing Cadmium Oxide /Cadmium Sulfide/Zinc Oxide heterostructures (CdO/CdS/ZnO), emphasizing their potential application in solar energy. Utilizing a combination of electrochemical deposition and oxygen annealing, the research provides a thorough analysis of the heterostructures through scanning electron microscopy (SEM), energy-dispersive X-ray (EDX) spectroscopy, X-ray diffraction (XRD), Raman spectroscopy, and photoluminescence (PL) spectroscopy. The findings reveal a complex surface morphology and a composite structure with significant contributions from hexagonal CdS and cubic CdO phases. The study highlights the uniformity in the distribution of luminescent centers and the crystalline quality of the heterostructures, which is evident from the PL analysis. The redshift observed in the emission peak and the additional peaks in the excitation spectrum indicate intricate optical properties influenced by various factors, including quantum confinement and lattice strain. The research demonstrates these heterostructures’ potential in enhancing solar cells’ efficiency and applicability in optoelectronic devices. This comprehensive characterization and analysis pave the way for future optimization and application in efficient and sustainable solar energy solutions.

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Section: Introductionmentioning

confidence: 99%

Advanced Synthesis and Characterization of CdO/CdS/ZnO Heterostructures for Solar Energy Applications

Suchikova,

Kovachov,

Bohdanov

et al. 2024

Materials

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“…N-type semiconductors are commonly regarded as potential materials for gas detection applications in sensor technology [11][12][13]. For many distinct gases, including H 2 [14,15], NO 2 [16,17], NO x [18], CO [19], NH 3 [20], H 2 S [21][22][23], and VOCs, they exhibit outstanding sensitivity and selectivity. (i.e., methanol, ethanol, propanol [24,25], and acetone [26].…”

Section: Introductionmentioning

confidence: 99%

Gas Sensor for Hazardous Nitrogen Dioxide Based on TiO2 Nanotube Synthesis via Electrochemical Method

Faris,

Ayal

2023

IJP

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Because of the quick growth of electrical instruments used in noxious gas detection, the importance of gas sensors has increased. X-ray diffraction (XRD) can be used to examine the crystal phase structure of sensing materials, which affects the properties of gas sensing. This contributes to the study of the effect of electrochemical synthesis of titanium dioxide (TiO2) materials with various crystal phase shapes, such as rutile TiO2 (R-TiO2NTs) and anatase TiO2 (A-TiO2NTs). In this work, we have studied the effect of voltage on preparing TiO2 nanotube arrays via the anodization technique for gas sensor applications. The results acquired from XRD, energy dispersion spectroscopy (EDX), and field emission scanning electron microscopy (FE-SEM) elucidate that TiO2 was created. In addition, systematically examining the gas detection properties was also done. The gas sensor was produced from TiO2 nanotubes, and the gas-detecting features were directed at nitrogen dioxide (NO2), which is a hazardous gas. The sensor formed from TiO2 nanotubes detects NO2 gas at various temperatures, from room temperature to 300 oC, and it has good sensitivity to this gas. The results exhibit that the gas sensor that was synthesized at 30 V has good sensitivity and a short response time at room temperature for NO2 gas sensing.

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CdS thin film sensor for NO2 and H2S detection at room temperature

Perillo,

Rodriguez

2024

Appl. Phys. A

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Cadmium sulfide in-situ derived heterostructure hybrids with tunable component ratio for highly sensitive and selective detection of ppb-level H2S

Cited by 12 publications

References 57 publications

Advanced Synthesis and Characterization of CdO/CdS/ZnO Heterostructures for Solar Energy Applications

Advanced Synthesis and Characterization of CdO/CdS/ZnO Heterostructures for Solar Energy Applications

Gas Sensor for Hazardous Nitrogen Dioxide Based on TiO2 Nanotube Synthesis via Electrochemical Method

CdS thin film sensor for NO2 and H2S detection at room temperature

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