Crystallographic defects induced F-Center and optical enhancements in CeO2-TiO2 nanocomposites by Samor Boonphan, Suriyong Prachakiew, Chaiyuth Nontakoat, Yanee Keereeta, Chatdanai Boonruang, Arrak Klinbumrung

“…The incorporation of 5 mol % CeO2 led to a significant reduction in the bandgap from 3.00 eV to 2.24 eV, enabling enhanced absorption in the visible light range. …”
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Radiation-Enhancement Properties of an X-Band Woodpile EBG and Its Application to a Planar Antenna by Fabrizio Frezza, Lara Pajewski, Emanuele Piuzzi, Cristina Ponti, Giuseppe Schettini

“…A woodpile Electromagnetic Bandgap (EBG) material has been designed, by using an in-house code that implements the Fourier Modal Method (FMM). …”
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Evaluation of Mechanochemically Prepared CePO₄∙H₂O Nanoparticles as UV Filter for Photoprotective Formulations by Stanislav Kurajica, Filip Brleković, Sabina Keser, Goran Dražić, Katarina Mužina, Vanesa Mihajlović

“…According to UV-Vis diffuse reflectance spectroscopy results, rhabdophane nanoparticles show transparency to visible light and high absorption in the UV region, with a direct bandgap of 3.1 eV. The photocatalytic activity in the Castor oil degradation process and the cytotoxicity for human skin cells were determined and compared to commercial TiO₂ nanoparticles, with rhabdophane nanoparticles exhibiting superior properties. …”
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13 µm cutoff InAs/GaSb type-II superlattice nBn detectors with high quantum efficiency grown by MOCVD by Richard Brown, Chen Liu, George Seager, Francisco Alvarado, Ka Ming Wong, Adam P. Craig, Richard Beanland, Andrew R. J. Marshall, J. Iwan Davies, Qiang Li

“…A GaAs like interfacial scheme was employed to grow the T2SLs matched to InAs substrates. A larger bandgap InAs/GaSb T2SL was used as an electron barrier, removing the need for AlSb based materials within this detector. …”
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Experiments on Linear and Nonlinear Localization of Optical Vortices in Optically Induced Photonic Lattices by Daohong Song, Cibo Lou, Liqin Tang, Zhuoyi Ye, Jingjun Xu, Zhigang Chen

“…Moreover, the SCVs can also turn into stable surface vortex solitons under the four-site excitation at the surface of a semi-infinite photonics lattice with a self-focusing nonlinearity. In the linear case, bandgap guidance of both SCVs and DCVs in photonic lattices with a tunable negative defect is investigated. …”
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Influence of short-pulsed Ion irradiation on optical and photoelectrical properties of thin gallium oxide films by Zhanymgul Koishybayeva, Fedor Konusov, Sergey Pavlov, Dmitrii Sidelev, Artur Nassyrbayev, Dmitry Cheshev, Ruslan Gadyrov, Vladislav Tarbokov, Abdirash Akilbekov

“…The influence of the annealing and the irradiation on spectral dependences of absorption, the bandgap width and the Urbach energy have been determined. …”
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A Metallo-Dielectric Groove Gap Waveguide Slotted Array Antenna With Hybrid Glide-Symmetric Holes & “Mushroom”-Type Metasurfaces by Panagiotis Petroutsos, Stavros Koulouridis

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Customizing the optical, electronic and transport attributes of lead-free hybrid FASnBr3 perovskites triggered by spin-orbit coupling and strains by Nusrat Jahan, Farah B.H. Pritu, Md Rasidul Islam, Budrun Neher, M Mahbubur Rahman, Farid Ahmed

“…The tensile strains upsurged the bandgaps, while compressive strains reduced them. The SOC significantly diminished the bandgaps and effective carrier mass, and 8 % of compressive strains with SOC showed unique bandgap behaviour. …”
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Synthesis and Optical Properties of Triphenylene-Based Donor-Donor and Donor-Acceptor Conjugated Polymers: A Comparative Study by Yong Li, Dung D. Nguyen, Kuldeep Shetye, Zhonghua Peng

“…The inclusion of the imide functionalization in the triphenylene unit significantly lowered the lowest unoccupied molecular orbital energy level and thus the bandgap of the donor-acceptor polymer P2 over the donor-donor polymer P1. …”
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Fabrication of Dye-Sensitized Solar Cells (DSSC) Using Mg-Doped ZnO as Photoanode and Extract of Rose Myrtle (Rhodomyrtus tomentosa) as Natural Dye by Nurdin Siregar, Motlan, Jonny Haratua Panggabean, Makmur Sirait, Juniastel Rajagukguk, Noto Susanto Gultom, Fedlu Kedir Sabir

“…Increasing the annealing temperature leads to a larger particle size and slightly increases bandgap energy. The dye sensitizer of extracted rose myrtle (Rhodomyrtus tomentosa) has a strong absorption at the visible light region. …”
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Influence of variation in indium concentration and temperature on the threshold current density in InxGa1-xAs/GaAs QD laser diodes by Zainab M. Alharbi, M.S. Al-Ghamdi

“…This redshift, attributable to variations in bandgap energy that decrease as indium content increases, highlights QD laser instability. …”
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X-Ray Performance of SiC NPN Radiation Detector by Jing Wang, Leidang Zhou, Liang Chen, Silong Zhang, Fangbao Wang, Tingting Fan, Zhuo Chen, Song Bai, Xiaoping Ouyang

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One-pot fabrication of highly porous morphology of ferric oxide-ferric oxychloride/poly-O-chloroaniline nanocomposite seeded on poly-1H pyrrole: Photocathode for green hydrogen gen... by Rabia Mohamed, Alnuwaiser Maha Abdallah

“…The photocathode exhibits broad optical absorption extending into the IR region and has a promising bandgap of 1.74 eV, making it a strong candidate for hydrogen gas generation within a constructed three-electrode cell. …”
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Enhanced optical properties of chitosan polymer doped with orange peel dye investigated via UV–Vis and FTIR analysis by Dyari M. Mamand, Dana S. Muhammad, Shujahadeen B. Aziz, Peshawa O. Hama, Bandar A. Al-Asbahi, Abdullah A. A. Ahmed, Jamal Hassan

“…UV–Visible spectroscopy indicated a reduction in the optical band gap from 5.11 eV in pure CS to 2.93 eV and 2.84 eV with increasing OPD concentrations, reflecting alterations in the electronic structure and enhanced sub-bandgap states. The refractive index improved from 1.31 in pure CS to 1.54 and 1.62 in the doped electrolytes, attributed to increased optical density and light-harvesting capability. …”
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Study of Transition Region of p-Type SiOx:H as Window Layer in a-Si:H/a-Si1-yGey:H Multijunction Solar Cells by Pei-Ling Chen, Po-Wei Chen, Chuang-Chuang Tsai

“…Compared to the amorphous SiOx:H(p) film prepared at low RH2, the SiOx:H(p) film deposited at RH2 of 167 exhibited a higher bandgap of 2.04 eV and a higher conductivity of 1.15 × 10−5 S/cm. …”
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The Influence of the Ammonolysis Temperature on the Photocatalytic Activity of β-TaON by Songhak Yoon, Alexandra E. Maegli, Santhosh Kumar Matam, Matthias Trottmann, Takashi Hisatomi, Céline Marie Leroy, Michael Grätzel, Simone Pokrant, Anke Weidenkaff

“…UV-Vis spectroscopy showed a bandgap energy of 2.6–2.4 eV. The highest oxygen evolution rate of 220 μmol·g−1·h−1 was achieved for β-TaON synthesized at . …”
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Graphene/TiO₂ Heterostructure Integrated with a Micro-Lightplate for Low-Power NO₂ Gas Detection by Paniz Vafaei, Margus Kodu, Harry Alles, Valter Kiisk, Olga Casals, Joan Daniel Prades, Raivo Jaaniso

“…Applying ultraviolet (380 nm) light with quantum energy above the TiO₂ bandgap effectively enhanced the sensor responses. …”
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CdSe Quantum Dots for Solar Cell Devices by A. B. Kashyout, Hesham M. A. Soliman, Marwa Fathy, E. A. Gomaa, Ali A. Zidan

“…CdSe quantum dots have been prepared with different sizes and exploited as inorganic dye to sensitize a wide bandgap TiO2 thin films for QDs solar cells. The synthesis is based on the pyrolysis of organometallic reagents by injection into a hot coordinating solvent. …”
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THEORETICAL STUDIES ON THE MAGNETIC, ELECTRICAL, AND OPTICAL PROPERTIES OF LEAD-FREE FERROELECTRIC Ba(Zr\(_{0.2}\)Ti\(_{0.8}\)O\(_3\))  MATERIALS WITH MANGANESE DOPING by Tien Lam Vu, Hoang Thoan Nguyen, Huu Lam Nguyen, Ngoc Trung Nguyen, Quoc Van Duong, Duc Dung Dang

“…The electronic structure calculations revealed that pristine BZT material behaves as a p-type semiconductor with direct and indirect bandgaps of 3.18 eV and 2.08 eV, respectively. Upon Mn doping, the bandgap values converge to zero, indicating a transition from semiconductor to metal behavior. …”
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Template-Free Synthesis of Star-Like ZrO2 Nanostructures and Their Application in Photocatalysis by Xue-Yu Tao, Jie Ma, Rui-Lin Hou, Xiang-Zhu Song, Lin Guo, Shi-Xiang Zhou, Li-Tong Guo, Zhang-Sheng Liu, He-Liang Fan, Ya-Bo Zhu

“…The synthesized ZrO2 showed a narrow bandgap (3.50–3.85 eV) and an excellent photocatalytic activity, and the degradation of RhB was up to nearly 100% in 30 min with this photocatalyst.…”
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