A. J. Soud, Bushra K. H. Al-Maiyaly

Chalcogenide Letters, Vol.21, No.5, pp. 385-394, 2024, DOI:10.15251/CL.2024.215.385

Abstract Copper Zinc Sulphide (Cu_0.5Zn_0.5S) alloy and thin films were fabricated in a vacuum. Nano crystallized (CZS) film with thick 450±20 nm was deposit at substrates glasses using thermal evaporation technique below ~ 2 × 10⁻⁵ mbar vacuum to investigated the films structural, morphological and optical properties depended on annealing temperatures ( as-deposited, 423, 523 and 623) K for one hour. The influences annealed temperature on structurally besides morphologically characteristics on these films were investigated using XRD and AFM respectively. XRD confirms the formation a mixed hexagonal phase of CuS-ZnS in (102) direction with polycrystalline in nature More >

W. W. Lu, J. N. Ding, Z. Y. Wang, Y. C. Wei, Y. P. Chen, J. Xu^*

Chalcogenide Letters, Vol.21, No.8, pp. 631-640, 2024, DOI:10.15251/CL.2024.218.631

Abstract Photocatalytic synthesis of hydrogen peroxide offers an effective solution to the energy crisis. The design and development of high-activity and low-cost photocatalysts are crucial for H₂O₂ production. In this work, Zn_0.4Cd_0.6S with abundant S vacancies (S_V-ZCS) is developed for H₂O₂ photosynthesis under 405 nm LED illumination without additional cocatalysts. The S vacancies serve as photo-generated electron trap centers, effectively extending the lifetimes of photogenerated carriers and promoting the separation of photoelectric carriers. Additionally, S_V-ZCS is endowed with enhanced light capture capability, enhancing the overall photocatalytic activity for H₂O₂ production. The results were in line with expectations, the S_V-ZCS samples More >

B. K. H. Al-Maiyaly, S. M. Ali, B. H. Hussein, H. K. Hassun^*

Chalcogenide Letters, Vol.21, No.8, pp. 605-613, 2024, DOI:10.15251/CL.2024.218.605

Abstract Copper doped Zinc oxide and (n-ZnO / p-Si and n-ZnO: Cu / p-Si) thin films thru thickness (400±20) nm were deposited by thermal evaporation technique onto two substrates. The influence of different Cu percentages (1%,3% and 5%) on ZnO thin film besides hetero junction (ZnO / Si) characteristics were investigated, with X-ray diffractions examination supports ZnO films were poly crystal then hexagonal structural per crystallite size increase from (22.34 to 28.09) nm with increasing Cu ratio. The optical properties display exceptional optically absorptive for 5% Cu dopant with reduced for optically gaps since 3.1 toward More >

M. Sudha^a,*, A. B. Madhan^b, M. Revathi^c

Chalcogenide Letters, Vol.21, No.10, pp. 841-845, 2024, DOI:10.15251/CL.2024.2110.841

Abstract Zinc sulfide thin films were prepared using the economical spray pyrolysis process. A thin film of exceptional quality with a temperature difference of 300 °C to 400 °C is produced by optimizing variables such as concentration, flow rate, and nozzle to substrate distance. These films' optical characteristics and structure were examined. The deposited thin films displayed a direct and allowed transition, as indicated by the optical transmittance spectra. XRD analysis confirmed that the deposited thin films were polycrystalline with a cubic phase. This film can be used in solar cell applications since the band gap More >

Areej S. Alqarni^a,*, I. Bulus^b, M. Abioye^c

Chalcogenide Letters, Vol.21, No.11, pp. 873-884, 2024, DOI:10.15251/CL.2024.2111.873

Abstract To unveiled the function of exchanging Sm₂O₃ for B₂O₃ on the physical and mechanostructural traits of multi-component glass, five distinct type (A, B, C, D and E) of glasses originated from (50-x)B₂O₃-10P₂O₅-30TeO₂-10ZnO-xSm₂O₃ (0.1≤x≤1.5, mol%) compositions were fabricated by using ordinary approach of melt-quenching. The noncrystallinity status of the synthesized samples was established by X-ray diffraction (XRD) profile. However, with sequential replacement of B₂O₃ by Sm₂O₃, the deduced values of physical entities such as density (d₃), Sm3+ ions concentration (N_i), field strength (F) and glass hardness (H_v) of our produced glasses were significantly amplified, while the molar volume (V_m) alongside polaron More >

R. A. Ulwali^*, N. K. Abbas

Chalcogenide Letters, Vol.21, No.12, pp. 1011-1020, 2024, DOI:10.15251/CL.2024.2112.1011

Abstract Pure zinc sulfide nanoparticles and doped with silver (0.5,1,1.5,2.5, and 3.5) % wt. were prepared by green method. The structural properties were studied using X-ray diffraction technology(XRD). The diffraction patterns showed the particles were crystalline and had a zinc-blend structure with different average grain size. The surface topography was investigated by Scanning Electron Microscope (FE-SEM), it was found the shape is spherical and had different nanosized. Chemical purity was studied using Energy Dispersive X-ray Spectroscopy(EDX), the results showed the appearance of basic elements (Zn, S) and silver. The results of Fourier Transform Infrared Spectroscopy(FTIR) showed More >

AMOURA M. ABOU-EL-NAGA¹, SHAKER A. MOUSA², FAYEZ ALTHOBAITI³, EMAN FAYAD^3,*, ENGY S. FAHIM¹

BIOCELL, Vol.48, No.12, pp. 1835-1837, 2024, DOI:10.32604/biocell.2024.054569 - 30 December 2024

Abstract This article has no abstract. More >

Yue Jiang^1,2,#, Lingyu Liu^1,#, Kangyu Wang^1,2, Mingzhu Zhao^1,2, Ping Chen^1,2, Jun Lei^1,2, Yanfang Wang³, Meiping Zhang^1,2, Yi Wang^1,2,*, Guang Chen^1,*

Phyton-International Journal of Experimental Botany, Vol.93, No.11, pp. 3055-3071, 2024, DOI:10.32604/phyton.2024.056384 - 30 November 2024

Abstract The main active components of ginseng are ginsenosides, which play significant roles in treating cardiovascular diseases, cancer, and providing antioxidant effects. Ginsenosides are primarily synthesized through the mevalonate pathway and the methylerythritol phosphate pathway. Many key enzyme genes involved in this biosynthetic process have been cloned and validated, yet the regulatory functions of transcription factors remain unclear. The C₂H₂-type zinc finger protein family, one of the largest families of transcription factors, is crucial in plant growth and development, response to biotic and abiotic stresses, and regulation of secondary metabolism. This study, based on the ginseng transcriptome More >

Martias¹, Dewi Fatria², Adha Fatmah Siregar², Raden Heru Praptana^3,*, Antonius Kasno³, Muhammad Prama Yufdy⁴, Riska⁴, Ni Luh Putu Indriyani⁴, Affandi⁴, Tri Budiyanti⁴, Sri Hadiati⁴, Ellina Mansyah⁴, Irwan Muas⁴, Jumjunidang⁴, Mizu Istianto⁴, Djoko Mulyono⁴, Intan Gilang Cempaka⁴, Triyani Dewi⁴, Agus Supriyo³, Bambang Nuryanto³

Phyton-International Journal of Experimental Botany, Vol.93, No.11, pp. 2767-2786, 2024, DOI:10.32604/phyton.2024.055686 - 30 November 2024

Abstract West Sumatera is one of the largest mangosteen production centers in Indonesia. After the 2019 harvest season, there were variations in fruit production and quality which indicated symptoms of zinc (Zn) deficiency. This study evaluates the status of Zn for increasing the production and quality of mangosteen fruit Ratu Kamang cv. The study was conducting using the observation method in Lima Puluh Kota, West Sumatera from January to December 2020. This study used ten mangosteen trees aged 23 years in three locations selected purposively. Parameters observed included soil properties, leaf nutrients, number of fruits; fruit,… More >

Fenghui Wang^1,*, Hongye Zhang¹

The International Conference on Computational & Experimental Engineering and Sciences, Vol.31, No.1, pp. 1-1, 2024, DOI:10.32604/icces.2024.012441

Abstract Aqueous zinc batteries have attracted wide interest due to the high safety of the non-flammable electrolyte. However, the inhomogeneous metal plating during the charging and discharging process generates uncontrollable dendrite growth on the anode surface, which seriously threatens the performance and lifetime of the battery. Herein, we provide a physical method to fragment zinc dendrites by using ultrasound to induce cavitation effects in the electrolyte, which can effectively improve the dielectric structure defects inside the battery and reduce the risk of short circuit. The experimental results show that the roughness and height of zinc deposits More >