Spin-momentum locking as a source of spin-splitting anisotropy in inverted HgTe quantum wells by Maciej Kubisa, Krzysztof Ryczko

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Physical properties of nanostructured ZnO thin films deposited by DC magnetron sputtering method with different volume of O2 in carrier gas by Asgary Somayeh, Ramezani Amir Hoshang, Mahmoodi Azam

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Numerical Investigation of Ultra-Wide Low-Frequency Wave Attenuation Using Seismic Metamaterials with Auxetic Slender Strips by Haosheng Liu, Hongbo Zhang

Subjects: “…ultra-wide low-frequency band gap…”
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A mm-Wave 5G Double Slot Array Antenna Based on Gap Waveguide Technology and Glide Symmetries by Panagiotis Petroutsos, Stavros Koulouridis

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Preparation and Study Annealing Effect on Structure and Optical Properties of ZnIn2(Se0.8Te0.2)4 Thin Film by Bushra H. Hussein, Husham Kamil Mahmood

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First Principles Study of Electronic and Optical Properties of Cadmium-Tin-Oxide by Adel Bandar Alruqi

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Novel properties of vacancy-ordered perovskite-Cs2BCl6 induced by d-orbital electrons by Siyu Zhang, Lu Wang, Yujia Guo, Jie Su, Haidong Yuan, Zhenhua Lin, Lixin Guo, Yue Hao, Jingjing Chang

“…Hf4+ and W4+ with high-energy d-state external electron configurations can further lower the valence band maximum position of the Cs2BCl6 structures and thus increase the band gap, assisting in tuning the optical absorption and emission properties of these structures in the optoelectronic application. …”
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ITO-Free Semitransparent Organic Solar Cells Based on Silver Thin Film Electrodes by Zhizhe Wang, Chunfu Zhang, Dazheng Chen, Shi Tang, Jincheng Zhang, Li Sun, Ting Heng, Yue Hao

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The Chalcogen (S, Se, and Te) Doping Effects on the Structural and Electronic Properties of Anatase (101) TiO2 Thin Surface Layers: DFT Study by Ihsan Erikat, Manal Alkhabbas, Bothina Hamad, Waed Alahmad

“…Doping TiO2 with chalcogen (S, Se, and Te) decreases its band gap and enhances the photocatalytic activity. …”
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Ultra‐Broad Emission Copper Halide Scintillator‐Based X‐Ray Imager by Haocheng Lv, Wenyi Shao, Haifeng Chen, Guoyang Zhu, Yao Wang, Zhenzhong Zhang, Hongwei Liang

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H2O2 Treatment of Electrochemically Deposited Cu2O Thin Films for Enhancing Optical Absorption by Ying Song, Masaya Ichimura

“…CuO has a smaller band gap of about 1.35 eV. Therefore, we attempted to oxidize Cu2O using H2O2 to increase oxygen ratio and decrease band gap. …”
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Efficient Inverted ITO-Free Organic Solar Cells Based on Transparent Silver Electrode with Aqueous Solution-Processed ZnO Interlayer by Zhizhe Wang, Dazheng Chen, Chunfu Zhang, Zhenhua Lin, Yan Liu, Genquan Han, Jingjing Chang, Jincheng Zhang, Lixin Guo, Yue Hao

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Conformational Analysis (Semi Empirical PM3) and Electronic Properties of Functionalized Oligo(hexylpyrroles) by O. A. Odunola, B. Semire

“…A semi empirical analysis of functionalized 3-hexylpyrroles [3XHP, where X= Br, NH2, SH, CN, COOH, CONC(CH3)2 and N(CH3)2] having functional group attached to the hexyl substituent up to four monomeric units in head-tail-head-tail regioselectivity was carried out. The energy band gap obtained at PM3 level showed that oligomers with 3BHP present lowest energy band gap. …”
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Preferential Crystallographic Orientation and Optical Properties in (Ag,Zn)-Based Oxide Nanoparticle Thin Film Depending on Spark Voltage by Ebru Güngör, Tayyar Güngör

“…The optical band gap narrowed (redshifted) due to the effect of Ag ions entering the ZnO structure. …”
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Morphological, Structural, and Optical Properties of Single-Phase Cu(In,Ga)Se2 Thin Films from the Selenization of Thermally Evaporated InSe/Cu/GaSe Precursors by Francis B. Dejene

“…The relatively small band gap values (~1 eV) of CuInSe2 thin films limit the conversion efficiencies of completed CuInSe2/CdS/ZnO solar cell devices. …”
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Simulation of film bulk acoustic resonator based on two-dimensional phononic crystals by Linhao SHI, Weipeng XUAN, Lingling SUN, Shurong DONG, Hao JIN, Jikui LUO

“…A new structure of film bulk acoustic resonator (FBAR) based on phononic crystal (PnC) was proposed.The phononic crystal was used as the acoustic reflection layer at the bottom of the bulk acoustic wave resonator, which has the characteristics of high reflectivity and low transmittance of elastic wave in its band gap.The band gap characteristics of four kinds of phononic crystals with different structures were calculated by the finite element software COMSOL Multiphysics.The main conclusions are as follows.If the bulk acoustic resonator is working within the band gap of the phononic crystal, PnC can be used as the bottom acoustic reflection layer of the FBAR.With using PnC as the acoustic energy reflect structure, the impedance curve of FBAR is smooth, and the quality factor is closed to traditional FBAR with a value of 859 and effective mechanical coupling coefficient of 6.32%.…”
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Influence of Secondary Phases in Kesterite-Cu2ZnSnS4 Absorber Material Based on the First Principles Calculation by Wujisiguleng Bao, Masaya Ichimura

“…The CTS/CZTS heterointerface is of type I; that is, the band gap of CTS is located within the band gap of CZTS. …”
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Surface Photovoltage Spectroscopy and AFM Analysis of CIGSe Thin Film Solar Cells by Nima E. Gorji, Ugo Reggiani, Leonardo Sandrolini

“…The band gap, grain size, and topography of a Cu(In,Ga)Se2 (CIGSe) thin film solar cell are analyzed using surface photovoltage spectroscopy (SPV) and atomic force microscopy (AFM) techniques. …”
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Development of Robust MWCNT Hydrogel Electrochemical Biosensor for Pyocyanin Detection by Phosphotungstic Acid Modification by Ting Xue, Lei Gao, Xianying Dai, Shenhui Ma, Yuyu Bu, Yi Wan

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Studies on the Optical Properties and Surface Morphology of Nickel Phthalocyanine Thin Films by Benny Joseph, C. S. Menon

“…The band gap increases again at 458K with full of fiber like grains. …”
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