Structural, magnetic, and optical characteristics of undoped and chromium, iron, cobalt, copper, and zinc doped nickel oxide nanopowders by Farzaneh Asaldoust, Khosro Mabhouti, Akbar Jafari, Maryam Taleb-Abbasi

“…An optical investigation was conducted on all samples utilizing a diffuse reflectance spectroscopy within the spectral range of 350–900 nm. Band gap values were estimated based on diffuse reflectance spectroscopy data through Tauc plot analysis, yielding a range from 2.77 to 3.46 eV. …”
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Annealing Study on Praseodymium-Doped Indium Zinc Oxide Thin-Film Transistors and Fabrication of Flexible Devices by Zhenyu Wu, Honglong Ning, Han Li, Xiaoqin Wei, Dongxiang Luo, Dong Yuan, Zhihao Liang, Guoping Su, Rihui Yao, Junbiao Peng

“…As the annealing temperature rises, the film tends to be denser and obtains a lower surface roughness, a narrower optical-band gap and less oxygen-vacancy content. However, the μ-PCD test shows the 250 °C-annealed film obtains the least defects. …”
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Boron phosphide microwires based on-chip electrocatalytic oxygen evolution microdevice by Hongwei Su, Qing Guo, Hongtao Li, Alei Li, Yunlei Zhong, Xu Zhang, Lin Geng, Shuai Liu, Liuqi Dong, Xiaohang Pan, Lin Wang, Lixing Kang

“…Electrical property and band structure analysis revealed BP as a one-dimensional p-type semiconductor with a wide band gap. We constructed an on-chip electrocatalytic microdevice using individual BP microwires to evaluate OER performance. …”
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Conjugated Polyvinyl Alcohol Modified SnO2 for Efficient Visible Light Photocatalytic Reduction of Cr(VI) by Shaojie Chen, Yuanyuan Luo, Yuhan Xu, Ying Chen, Yinxing Jiang, Zhao Li, Lin Tian, Furong Wang, Yuanyuan Liu, Jing Li

“…The photocatalytic activity of tin dioxide (SnO2) is limited due to its inadequate response to the solar spectrum, wide band gap, and low visible light photocatalytic activity. …”
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Dye sensitized photocatalytic degradation of congo red and rhodamine B by 1,3,5-Benzenetricarboxylic acid based metal organic frameworks Ni3(BTC)2.12H2O, (Ni0.8Co0.2)3(BTC)2.12H2O... by Kavitha Karuppiah, Anushree Raju, Anuradha Natarajan, Swedha Mohan, Dhinakaran Subramani, Kumaran Rajendran, Vanjinathan Mahalingam, Gopalakrishnan Arumugam, Samikannu Prabu, Kung-Yuh Chiang, Vasanthi Rajaraman

“…Their structures were thoroughly characterized through various techniques, including PXRD, FE-SEM, EDX, HRTEM, FT-IR, Raman spectroscopy, TGA, and BET analysis. Despite their band gap energies exceeding 3 eV, which limits direct visible light absorption, the photocatalytic degradation was successful, suggesting a dye-sensitized mechanism. …”
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Effect of the CO2/SiH4 Ratio in the p-μc-SiO:H Emitter Layer on the Performance of Crystalline Silicon Heterojunction Solar Cells by Jaran Sritharathikhun, Taweewat Krajangsang, Apichan Moollakorn, Sorapong Inthisang, Amornrat Limmanee, Aswin Hongsingtong, Nattaphong Boriraksantikul, Tianchai Taratiwat, Nirod Akarapanjavit, Kobsak Sriprapha

“…A p-μc-SiO:H film with a wide optical band gap (E04), 2.1 eV, can be obtained by increasing the CO2/SiH4 ratio; however, the tradeoff between E04 and dark conductivity must be considered. …”
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Photoelectrochemical characterization and photocatalytic properties of mesoporous <mml:math alttext="${{{ext{TiO}}_{ext{2}} } mathord{left/ {vphantom {{{ext{TiO}}_{ext{2}} } {{ext...

“…The structural and optical properties of these films were characterized using SEM, low-angle XRD, and UV/Vis spectroscopy, hexane adsorption investigation. Band gap energy and the position of flatband potentials were estimated by photoelectrochemical measurements. …”
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Transition metal-based MOFs for Fenton-like photocatalytic degradation of organic pollutants: Performance, stability, and biocompatibility by S.M. Tikhanova, Yu.A. Tishchenko, E.Yu. Stovpiaga, M. Timofeeva, D.V. Lipin, S.A. Povarov, V.A. Milichko, A.S. Timin, S.A. Shipilovskikh, V.I. Popkov

“…The materials exhibited a high visible-light absorption with band gap energies of 1.76 eV (FeBDC), 3.08 eV (CoBDC), and 3.73 eV (NiBDC), BET surface areas of 28.2 m2/g (FeBDC), 74.3 m2/g (CoBDC), and 31.4 m2/g (NiBDC). …”
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Evolution of phase composition and luminescent characteristics of the La1-x-ySmxCayVO4-δ nanocrystalline phosphor by S.G. Nedilko, O. Chukova, A. Dorofieieva, S.A. Nedilko, V. Shcherbatskyi, T. Voitenko, M. Etter, H.S. Rahimi Mosafer, W. Paszkowicz, Y. Zhydachevskyy, A. Suchocki

“…Estimated from the diffuse reflection data the band gap values are 3.85, and 3.82, 3.75, 3.78 eV for the samples with x = 0.1, y = 0, and (x, y) = 0.05, 0.10, 0.15, respectively. …”
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Improving the charge transport of perovskite nanocrystal light-emitting-diodes through Benzylammonium ligand exchange by Minsik Gong, Dong Gyu Lee, Gwang Yong Shin, Yun Seop Shin, Donghwan Yun, Yunhye Jeong, Sang Wook Park, Chan Beom Park, Yung Jin Yoon, Sung Yong Bae, Yun-Hi Kim, Jin Young Kim, Tae Kyung Lee, Gi-Hwan Kim

“…Lead halide perovskite nanocrystals (LHP NCs) have emerged as promising materials for next-generation display area due to their exceptional luminescence efficiency, size-dependent band gap, and shape control. Ligands on the NC surfaces can be substituted using ligand exchange, which significantly influence the properties and performance of LHP light-emitting diodes (LEDs). …”
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Exploring Brannerite-Type Mg_1−<i>x</i><i>M_x</i>V₂O₆ (<i>M</i> = Mn, Cu, Co, or Ni) Oxides: Crystal Structure and Optical Properties by Hua-Chien Hsu, Narayanan Lakshminarasimhan, Jun Li, Arthur P. Ramirez, Mas A. Subramanian

“…The UV–Vis diffuse reflectance spectra indicate a possible origin for these results include the ligand-to-metal charge transfer (O²⁻ 2p-V⁵⁺ 3d), metal-to-metal charge transfer (from Mn²⁺ 3d/Cu²⁺ 3d/Co²⁺ 3d/Ni²⁺ 3d to V⁵⁺ 3d), band gap transitions, and d–d transitions. Magnetic property measurements revealed antiferromagnetic behavior for the compounds Mg_1−<i>x</i><i>M_x</i>V₂O₆ (<i>M</i> = Mn, Cu, Co, and Ni), and an oxidation state of +2 for the <i>M</i> ions was deduced from their Curie–Weiss behavior. …”
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Effect of Hubbard U-corrections on the electronic and magnetic properties of 2D materials: a high-throughput study by Sahar Pakdel, Thomas Olsen, Kristian S. Thygesen

“…Specifically, we use density functional theory (DFT) with the PBE and PBE+U approximations to calculate the crystal structure, band gaps, and magnetic parameters of 638 monolayers. …”
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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

“…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. …”
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A Study on Controllable Mod Exploiting the Intrinsic Symmetry Breaking of Low-symmetry Photonic Crystals by Özgür Önder Karakılınç

“…Photonic crystals are periodic dielectric structures that create photonic band gaps depending on the geometry of the lattice elements and the material properties. …”
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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

“…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. …”
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Recycling e-waste into gold-loaded covalent organic framework catalysts for terminal alkyne carboxylation by Amin Zadehnazari, Florian Auras, Ataf Ali Altaf, Amin Zarei, Ahmadreza Khosropour, Saeed Amirjalayer, Alireza Abbaspourrad

“…These covalent organic frameworks have low band gaps and high photocurrent responses. TTF-COF has an adsorption capacity toward aqueous Au(III) of 2440 mg g–1, and TPE-COF’s Au(III) adsorption capacity is 1639 mg g–1. …”
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Investigating Optical Properties of One-Dimensional Photonic Crystals Containing Semiconductor Quantum Wells by Mahshid Mokhtarnejad, Morteza Asgari, Arash Sabatyan

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

“…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. …”
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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

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

“…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.…”
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