Close-Spaced Sublimation of CdZnTe:In Films for Solar Energy Water Splitting

Bie, Jiaying; Wang, Shilin; Guan, Yongsheng; Zhang, Xiang; Sun, Yun; Sun, Cheng; Tang, Ke; Huang, Jian; Cao, Meng; Ling, Jun; Tan, Ke; Shen, Yue; Wang, Linjun

doi:10.1021/acs.energyfuels.1c00356

Cited by 11 publications

(6 citation statements)

References 42 publications

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“…The value of the band gap Eg can be estimated using the assumption of straight-band transitions between the valence band and the conduction band [1,13].…”

Section: Resultsmentioning

confidence: 99%

“…Thin films of cadmium telluride and CdZnTe solid solution based on it are widely used in the creation of solar cells [1][2], as well as devices in the infrared (IR) and terahertz (THz) range [3, 4 and references]. CdZnTe, in contrast to CdTe, differs in the presence of Zn ions, which improves its mechanical properties (increase microhardness) and enhances the bond covalence.…”

Section: Introductionmentioning

confidence: 99%

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Forming of CdZnTe thin films grown by hot wall epitaxy and their properties

Vuichyk

Rashkovetskyi

Lavoryk

et al. 2021

Phys. Chem. Solid St.

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In this work morphological, X-ray structural and optical studies of CdZnTe films grown by hot wall epitaxy method at relatively low substrate temperatures were performed. Possible mechanisms and processes of self-organization that occur during the growth of such structures are considered. It is shown that at thickness of film more than 130 nm on the surface, large (lateral size 150 - 200 nm, height - up to 10 nm) and small crystals are observed. The thicknesses and energy of the band gap width of the CdZnTe films grown at different growth times were determined. It is shown that the film absorption edge in the transmission spectra depends on the film thickness and the reasons for the shift of the film absorption edge are discussed.

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“…The value of the band gap Eg can be estimated using the assumption of straight-band transitions between the valence band and the conduction band [1,13].…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Forming of CdZnTe thin films grown by hot wall epitaxy and their properties

Vuichyk

Rashkovetskyi

Lavoryk

et al. 2021

Phys. Chem. Solid St.

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show abstract

“…This system demonstrated STH conversion efficiency of over 0.78% with high stability . Designing and constructing hybrid photoanodes with various ranges of light absorbers were essential for developing effective and efficient water splitting systems. , Recently, perovskite-based materials have been widely applied as photocatalysts for water splitting applications. − The photocatalytic activity of perovskite is predominantly determined by B-site elements. In perovskite, there are two main groups of elements that can act as an active site (B) of cation components.…”

Section: Photocatalytic (Pc) and Photoelectrochemical (Pec) Water Spl...mentioning

confidence: 99%

“…112 Designing and constructing hybrid photoanodes with various ranges of light absorbers were essential for developing effective and efficient water splitting systems. 112,113 Recently, perovskite-based materials have been widely applied as photocatalysts for water splitting applications. 114−116 The photocatalytic activity of perovskite is predominantly determined by B-site elements.…”

Section: Photocatalytic (Pc) and Photoelectrochemical (Pec) Water Spl...mentioning

confidence: 99%

Recent Trends in Sustainable Solar Energy Conversion Technologies: Mechanisms, Prospects, and Challenges

et al. 2023

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The current global transition from conventional fossil-fuel-based systems to green, sustainable, and renewable energy is realizing new challenges associated with device efficiencies. Among the green energy approaches available, efficient solar energy conversion into green chemical and electrical energy can ensure the upcoming demands of global future energy in an environmentally friendly and sustainable way. However, the sunlight energy cannot be utilized directly as a result of its intermittent and diffuse nature. This demands the development of efficient and economically viable technologies for its efficient conversion to an applicable source of energy. The practical realization of this dream on an industrial scale is still a longstanding challenge for researchers. Therefore, the scientists and technologists across the globe are in constant pursuit to develop/improve highly efficient, environmentally benign, and economically viable sustainable chemistry and engineering devices. At present, three technologies: (i) photoelectrochemical water splitting, (ii) photoreforming of plastic- or biomass-derived waste, and (iii) organic photovoltaics in the form of perovskite solar cells have emerged as the best for converting the sunlight energy into organic valuables and “green” H2 fuel or electricity. In this review, we will focus on introducing the basic principles, mechanistic insights, recent trends, and future prospects for solar to green energy using these technologies.

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“…CdZnTe is considered one of the most significant chalcogenide materials and belongs to the II-VI ternary semiconductor compound. It is a promising candidate for several technological applications, such as in optoelectronics and tandem solar cells [20][21][22], optoelectronics [23], and radiation detectors [19,20,[24][25][26], as it is used as a photoanode for watersplitting applications [27].…”

Section: Introductionmentioning

confidence: 99%

Tuning structural, electrical, linear, and nonlinear optical properties of cadmium zinc telluride quantum dot thin films

Mahdy

Mahmoud

Mahdy

2022

Journal of Materials Research

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Quantum dots of Cd0.18Zn0.14Te0.68 thin films of various thicknesses are deposited on a glass substrate using inert gas condensation and characterized using many techniques. Structural analysis confirms the cubic polymorph of the thin films. The particle size increased from 5.7 to 10.35 nm as the film thickness increased from 10 to 100 nm. Bandgap calculations show two direct allowed transitions, one of which is 1.8 eV for different thicknesses. The other transition changes from the ultra-violet region (3.7 eV) for 10 nm thickness to yellow (2 eV) for 100 nm thickness, depending on the particle size. This result suggests that this material is suitable for use in multiple absorption layers of the same material rather than multilayers of different materials in tandem solar cells. The optical linear and nonlinear parameters highly depend on the particle size. Electrical conductivity shows intrinsic conduction with low activation energies from ambient temperature to 336 K. Graphical abstract

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Close-Spaced Sublimation of CdZnTe:In Films for Solar Energy Water Splitting

Cited by 11 publications

References 42 publications

Forming of CdZnTe thin films grown by hot wall epitaxy and their properties

Forming of CdZnTe thin films grown by hot wall epitaxy and their properties

Recent Trends in Sustainable Solar Energy Conversion Technologies: Mechanisms, Prospects, and Challenges

Tuning structural, electrical, linear, and nonlinear optical properties of cadmium zinc telluride quantum dot thin films

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