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Crystals, Volume 11, Issue 1

January 2021 - 77 articles

Cover Story: Zinc iodate, Zn(IO3)2 has been studied under compression up to 17 GPa by means of synchrotron infrared microspectroscopy measurements. This is the first time this metal iodate is being studied via high-pressure Fourier Transform Infrared microspectroscopy. The experiments allowed the detection of twenty-five phonons below 600 cm−1 for the initial monoclinic low-pressure polymorph of Zn(IO3)2. The pressure response of the modes has been characterized, with several modes exhibiting non-linear responses. The non-linear behavior of modes and the detection of frequency discontinuities have been related to the possible existence of pressure-driven phase transitions. A meticulous analysis of the high-pressure spectra indicates that Zn(IO3)2 undergoes subtle phase transitions around 3 and 8 GPa, which are followed by a more drastic transition around 13 GPa. View t

Articles (77)

  • Article
  • Open Access
7 Citations
3,017 Views
14 Pages
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Investigating the Potential of Flexible and Pre-Organized Tetraamide Ligands to Encapsulate Anions in One-Dimensional Coordination Polymers: Synthesis, Spectroscopic Studies and Crystal Structures

  • Nur Shuhaila Haryani Haris,
  • Nafisah Mansor,
  • Mohd Sukeri Mohd Yusof,
  • Christopher J. Sumby and
  • Maisara Abdul Kadir
Crystals2021, 11(1), 77;https://doi.org/10.3390/cryst11010077

19 January 2021

The synthesis of amide-based molecules, possessing pre-organized structures, has received significant attention due to their potential applications as molecular receptors and as components of nanomaterials. In this study, four extended tetraamide lig...

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  • Open Access
8 Citations
3,971 Views
22 Pages
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Spectroscopic Investigations, Computational Analysis and Molecular Docking to SAR-Cov-2 Targets Studies of 5,8-Quinolinedione Attached to Betulin Derivatives

  • Monika Kadela-Tomanek,
  • Maria Jastrzębska,
  • Krzysztof Marciniec,
  • Ewa Bębenek,
  • Elwira Chrobak and
  • Stanisław Boryczka
Crystals2021, 11(1), 76;https://doi.org/10.3390/cryst11010076

19 January 2021

The 5,8-quinolinedione-betulin hybrids were investigated using spectroscopic methods as well as a variety of quantum chemical calculations in order to characterize their molecular structure. We used FT-IR and NMR spectroscopy supplemented by the dens...

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  • Open Access
2 Citations
2,822 Views
12 Pages
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One-Step Carbothermal Synthesis of Super Nanoadsorbents for Rapid and Recyclable Wastewater Treatment

  • Wen-chan Ji,
  • Ping Hu,
  • Xiao-yu Wang,
  • Sandra Elizabeth Saji,
  • Tian Chang,
  • Xin-yu Zhu,
  • Fairy Fan Yang,
  • Qi-gao Cao,
  • Rui Dang and
  • Kuai-she Wang
  • + 1 author
Crystals2021, 11(1), 75;https://doi.org/10.3390/cryst11010075

18 January 2021

As a potential magnetic super adsorbent in wastewater treatment, Fe3O4 has been researched intensively up to date. However, its key problem of poor comprehensive magnetic properties is still challenging. In this work, an effective solution to this pr...

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  • Open Access
5 Citations
3,391 Views
17 Pages
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Evolution of Shape and Volume Fraction of Superconducting Domains with Temperature and Anion Disorder in (TMTSF)2ClO4

  • Kaushal K. Kesharpu,
  • Vladislav D. Kochev and
  • Pavel D. Grigoriev
Crystals2021, 11(1), 72;https://doi.org/10.3390/cryst11010072

17 January 2021

In highly anisotropic organic superconductor (TMTSF)2ClO4, superconducting (SC) phase coexists with metallic and spin-density wave phases in the form of domains. Using the Maxwell-Garnett approximation (MGA), we calculate the volume ratio and estimat...

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23 Citations
4,173 Views
13 Pages
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The Role of Deposition Temperature in the Photovoltaic Properties of RF-Sputtered CdSe Thin Films

  • Hasrul Nisham Rosly,
  • Kazi Sajedur Rahman,
  • Siti Fazlili Abdullah,
  • Muhammad Najib Harif,
  • Camellia Doroody,
  • Puvaneswaran Chelvanathan,
  • Halina Misran,
  • Kamaruzzaman Sopian and
  • Nowshad Amin
Crystals2021, 11(1), 73;https://doi.org/10.3390/cryst11010073

17 January 2021

Cadmium selenide (CdSe) thin films were grown on borosilicate glass substrates using the RF magnetron sputtering method. In this study, CdSe thin film was deposited at a deposition temperature in the range of 25 °C to 400 °C. The influence of...

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  • Open Access
5 Citations
3,192 Views
7 Pages
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A Comparison Study on Multilayered Barrier Oxide Structure in Charge Trap Flash for Synaptic Operation

  • Minkyung Kim,
  • Eunpyo Park,
  • In Soo Kim,
  • Jongkil Park,
  • Jaewook Kim,
  • YeonJoo Jeong,
  • Suyoun Lee,
  • Inho Kim,
  • Jong-Keuk Park and
  • Tae-Yeon Seong
  • + 1 author
Crystals2021, 11(1), 70;https://doi.org/10.3390/cryst11010070

16 January 2021

A synaptic device that contains weight information between two neurons is one of the essential components in a neuromorphic system, which needs highly linear and symmetric characteristics of weight update. In this study, a charge trap flash (CTF) mem...

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  • Communication
  • Open Access
14 Citations
4,300 Views
13 Pages
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Comparative Study of Cold Sintering Process and Autoclave Thermo-Vapor Treatment on a ZnO Sample

  • Yurii Ivakin,
  • Andrey Smirnov,
  • Anastasia Kholodkova,
  • Alexander Vasin,
  • Mikhail Kormilicin,
  • Maxim Kornyushin and
  • Vladimir Stolyarov
Crystals2021, 11(1), 71;https://doi.org/10.3390/cryst11010071

16 January 2021

Analysis of scanning electron microscopy images was used to study the changes in the crystal size distribution of ZnO, which occurred during its processing in an aqueous medium at 220–255 °C and an equilibrium vapor pressure in an autoclave...

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  • Open Access
8 Citations
3,163 Views
13 Pages
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Modulation Effect of Hardness on the Friction Coefficient and Its Mechanism Analysis of ZrB2/Mo Multilayers Synthesized by Magnetron Sputtering

  • Tingjia Zhang,
  • Lei Dong,
  • Jie Wu and
  • Dejun Li
Crystals2021, 11(1), 69;https://doi.org/10.3390/cryst11010069

16 January 2021

ZrB2/Mo multilayers were prepared by the magnetron sputtering technique on Si (100) and Al2O3 (001) substrates. The friction behavior and wear mechanism of the multilayers were tested at variable modulation ratios (tZrB2:tMo) of 1:1 to 8:1 at differe...

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  • Article
  • Open Access
2 Citations
2,948 Views
7 Pages
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Pyroelectric Properties of Bismuth Borate BZBO Single Crystals

  • Feifei Chen,
  • Chao Jiang,
  • Xiufeng Cheng and
  • Xian Zhao
Crystals2021, 11(1), 64;https://doi.org/10.3390/cryst11010064

15 January 2021

Pyroelectric properties of orthorhombic Bi2ZnB2O7 (BZBO) crystals were investigated by using the charge integration method. The primary and the secondary pyroelectric coefficients of BZBO crystals were found to be 6.4 and −6.5 µC/(m2&midd...

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