Showing 301 - 319 results of 319 for search '"band gap"', query time: 0.07s Refine Results
  1. 301

    The Influence of Hydrogen on the Properties of Zinc Sulfide Thin Films Deposited by Magnetron Sputtering by Hang Xu, Lili Wu, Wenwu Wang, Lixiang Zhang, Jingquan Zhang, Wei Li, Lianghuan Feng

    Published 2014-01-01
    “…The results showed that hydrogen leads to better crystallinity and larger crystallite size of ZnS polycrystalline films. The band gaps of the films in Ar+H2 are about 3.48 eV compared with 3.24 eV without hydrogen. …”
    Get full text
    Article
  2. 302

    Investigating Optical Properties of One-Dimensional Photonic Crystals Containing Semiconductor Quantum Wells by Mahshid Mokhtarnejad, Morteza Asgari, Arash Sabatyan

    Published 2017-01-01
    “…Thus, by employing the mechanism of stark effect MQWs band-gaps can be easily controlled which is useful in designing MWQ based optical switches and filters. …”
    Get full text
    Article
  3. 303

    QeMFi: A Multifidelity Dataset of Quantum Chemical Properties of Diverse Molecules by Vivin Vinod, Peter Zaspel

    Published 2025-02-01
    “…Much research is progressing in this direction for diverse applications ranging from energy band gaps to excitation energies. One hurdle for effective research here is the lack of a diverse multifidelity dataset for benchmarking. …”
    Get full text
    Article
  4. 304

    Influence of Doping Concentration on Dielectric, Optical, and Morphological Properties of PMMA Thin Films by Lyly Nyl Ismail, Habibah Zulkefle, Sukreen Hana Herman, Mohamad Rusop Mahmood

    Published 2012-01-01
    “…All samples are highly transparent. The energy band gaps are in the range of 3.6 eV to 3.9 eV when the PMMA concentration increased. …”
    Get full text
    Article
  5. 305

    Synthesis of Nitrogen-Doped ZnS with Camellia Brushfield Yellow Nanostructures for Enhanced Photocatalytic Activity under Visible Light Irradiation by Gang-Juan Lee, Chi-Lun Hong, Valentina Batalova, Gennady Mokrousov, Jerry Wu

    Published 2013-01-01
    “…Optical characterizations of the synthesized N-doping ZnS substantially show the shifted photoabsorption properties from ultraviolet (UV) region to visible light. The band gaps of nitrogen-doped ZnS composite catalysts were calculated to be in the range of 2.58~2.74 eV from the absorptions edge position. …”
    Get full text
    Article
  6. 306

    Orbital-order as the driving mechanism for superconductivity in ruthenates by Álvaro Adrián Carrasco Álvarez, Sébastien Petit, Wilfrid Prellier, Manuel Bibes, Julien Varignon

    Published 2025-02-01
    “…Our results suggest that phonons strongly coupled to electrons, such as those involved in charge disproportionation or Jahn-Teller effects and inducing band gaps in various oxides, could also serve as mediators of Cooper pairs in metallic phases.…”
    Get full text
    Article
  7. 307

    Photocatalytic Properties of Tin Oxide and Antimony-Doped Tin Oxide Nanoparticles by J. C. M. Brokken-Zijp, O. L. J. van Asselen, W. E. Kleinjan, R. van de Belt, G. de With

    Published 2011-01-01
    “…The results are explained by describing the effects of Sb-doping, N-doping, and/or methacrylate surface grafting on the band gaps, energy level distributions, and surface group reactivities of these nanoparticles. …”
    Get full text
    Article
  8. 308

    Impact on Structural and Optical Properties of CZTS Thin Films with Solvents and Ge Incorporation by Abhay Kumar Singh, Tanka R. Rana, JunHo Kim, M. Shkir, Tien-Chien Jen

    Published 2021-01-01
    “…Moreover, the gradual changes have also appeared in their X-ray diffractometer (XRD) and Raman spectroscopic results. The optical energy band gaps of the CZTS, CZGTS, and their PVA, DMSO mixed alloyed thin films are obtained in between 1.27 eV to 1.57 eV and 1.58 eV to 1.83 eV.…”
    Get full text
    Article
  9. 309

    Unlocking the potential of azide-phosphine Staudinger reaction for the synthesis of poly(arylene iminophosphorane)s and materials therefrom by Tomaž Kotnik, Antoine Debuigne, Julien De Winter, Matej Huš, Albin Pintar, Sebastijan Kovačič

    Published 2025-01-01
    “…Interestingly, despite the ylidic-form of the iminophosphorane linkage as shown by theoretical calculations, these newly developed poly(arylene-iminophosphorane) networks exhibit semiconducting properties, such as absorption band edges up to 800 nm and optical band gaps in the range of 1.70 to 2.40 eV. Finally, we demonstrate the broad applicability of these polymers by processing them into glassy films, creating foam-like structures and synthesizing metallo-polymer hybrids.…”
    Get full text
    Article
  10. 310

    Spectroscopic Analysis for Harnessing the Quality and Potential of Gemstones for Small and Medium-Sized Enterprises (SMEs) by Imtiaz Ahmad, Suhail H. Serbaya, Ali Rizwan, Malik Sajjad Mehmood

    Published 2021-01-01
    “…The higher structural disorder due to the presence of Fe and other impurities in stones except Quartz was attributed to the higher values of Urbach energies and decrease in band gaps: FTIR data Fe-O and Si-O stretching vibration in Pyrope-Almandine garnet, Si-O bending vibrations and O-H stretching vibration in Quartz, Si-O-Si bending and stretching vibrations and C=O stretching vibrations in Black tourmaline, Ca-O stretching vibrations and Si-OH weak-vibrations in Amethyst. …”
    Get full text
    Article
  11. 311

    Electronic Structure of Single-Wall Silicon Nanotubes and Silicon Nanoribbons: Helical Symmetry Treatment and Effect of Dimensionality by Pavol Baňacký, Jozef Noga, Vojtech Szöcs

    Published 2013-01-01
    “…From the calculated band structure results that, irrespective of helicity, the SWSiNTs of larger diameter are small-gap semiconductors with direct gap between the Dirac-like cones of (π*,π) bands. Gap of SWSiNTs is modulated by fold number of particular tubular rotational axis symmetry and exhibits an oscillatory-decreasing character with increase of the tube diameter. …”
    Get full text
    Article
  12. 312

    Achieving a Near-Infrared Absorption by A−DA’D−A Type Isoindigo-Based Small Molecular Acceptors for Organic Photovoltaics by Hui Liu, Yu Wu, Dong-Nai Ye, Na Chen, Xu-Min Huang, Shi-Yong Liu

    Published 2025-01-01
    “…Both URAs, despite the absence of non-covalent conformation locking between CPDT and IID, demonstrated favorable molecular planarity, broad absorption ranges, low band gaps, and high molar absorption coefficients. …”
    Get full text
    Article
  13. 313

    The Multiple Effects of Precursors on the Properties of Polymeric Carbon Nitride by Wendong Zhang, Qin Zhang, Fan Dong, Zaiwang Zhao

    Published 2013-01-01
    “…The results showed that the as-prepared CN-T (from thiourea), CN-D (from dicyandiamide), CN-M (from melamine), and CN-U (from urea) exhibited significantly different morphologies and microstructures. The band gaps of CN-T, CN-D, CN-M, and CN-U were 2.51, 2.58, 2.56, and 2.88 eV, respectively. …”
    Get full text
    Article
  14. 314

    Preparation of Chloro Penta Amine Cobalt(III) Chloride and Study of Its Influence on the Structural and Some Optical Properties of Polyvinyl Acetate by Nada K. Abbas, Majeed Ali Habeeb, Alaa J. Kadham Algidsawi

    Published 2015-01-01
    “…The nature of electronic transition from valence band to conduction band was determined and the energy band gaps of the composite films samples were estimated by UV-visible spectrum. …”
    Get full text
    Article
  15. 315

    Effect of precursor molarities on structural correlation with optoelectronic property of Zn2SnO4 nanostructured thin films by Isha Arora, Praveen Kumar Sharma, Harkawal Singh, Vanasundaram Natarajan

    Published 2025-06-01
    “…All the samples exhibit dual band gaps on account of the having the inverse spinel structure. …”
    Get full text
    Article
  16. 316

    Photophysical and Electrochemical Studies of Multinuclear Complexes of Iron(II) with Acetate and Extended Conjugated N-Donor Ligands by Norbani Abdullah, Suhana Mohd Said, Anita Marlina, Muhamad Faris Roslan, Afiq Azil, Abdul Rahman Nordin

    Published 2015-01-01
    “…Variable-temperature magnetic susceptibility data suggested that 1 was made up of 56.8% high-spin (HS) and 43.2% low-spin (LS) Fe(II) atoms at 294 K and has a moderate antiferromagnetic interaction (J = −81.2 cm−1) between the two Fe(II) centres, while 2 was made up of 27.7% HS and 72.3% LS Fe(II) atoms at 300 K. The optical band gaps (Eo) for 1 were 1.9 eV (from absorption spectrum) and 2.2 eV (from fluorescence spectrum), electrochemical bandgap (Ee) was 0.83 eV, excited state lifetime (τ) was 0.67 ns, and formal redox potential (E′(FeIII/FeII)) was +0.63 V. …”
    Get full text
    Article
  17. 317

    Effect of annealing on the structural, morphological, optical, magnetic, and dielectric properties of nickel-doped cobalt nanoferrites for electronic applications by Md Shihabun Sakib, Md Naimur Rahman, Md Alamgir Hossain, Md Rashedur Rahman

    Published 2025-02-01
    “…UV spectroscopy indicated semiconductor behavior with band gaps ranging from 1.86 to 2.15 eV. Dielectric constant and losses decreased with higher annealing temperature and frequency. …”
    Get full text
    Article
  18. 318

    Constructing benzothiadiazole‐based donor‒acceptor covalent organic frameworks for efficient photocatalytic H2 evolution by Yanchang Huang, Bin Gao, Qihang Huang, De‐Li Ma, Hongwei Wu, Cheng Qian

    Published 2025-01-01
    “…Abstract Donor‒acceptor covalent organic frameworks (D‒A COFs) have been regarded as promising materials for photocatalytic water splitting because of their tunable band gaps. However, their efficiency is hindered by fast charge recombination and low photostability. …”
    Get full text
    Article
  19. 319

    Enhanced photocatalytic degradation of Rhodamine B using polyaniline-coated XTiO3(X = Co, Ni) nanocomposites by Mariyem Abouri, Abdellah Benzaouak, Mohamed Elouardi, Lahcen El Hamdaoui, Fatima Zaaboul, Khalil Azzaoui, Belkheir Hammouti, Rachid Sabbahi, Shehdeh Jodeh, Mohammed Alaoui El Belghiti, Adnane El Hamidi

    Published 2025-01-01
    “…Diffuse reflectance spectroscopy (DRS) revealed reduced band gaps of 2.63 eV for 1wt.% PANI@NiTiO3 and 2.46 eV for 1wt.% PANI@CoTiO3, enhancing light absorption across UV and visible ranges. …”
    Get full text
    Article