Multifeed EBG Dual-Band Antenna for Spatial Mission by A. Kanso, R. Chantalat, U. Naeem, H. Chreim, M. Thevenot, S. Bila, T. Monediere

“…We present the design of a multibeam reflector antenna fed by a multifeed dual-band electromagnetic band gap (EBG) antenna to achieve a high-gain multispot coverage for space applications. …”
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The NaBH4 Reduction and pH Effects on the Optical Property of Bismuth Vanadate by Riapanitra Anung, Julian Haryanto Michael, Setyaningtyas Tien, Riyani Kapti, Nur Handayani Santi

“…Higher pH levels during reduction led to narrower band gaps and enhanced visible-light responsiveness. …”
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Carbon Nanosphere-Based TiO₂ Double Inverse Opals by Dániel Attila Karajz, Kincső Virág Rottenbacher, Klára Hernádi, Imre Miklós Szilágyi

“…Reflectance mode UV–visible spectroscopy showed that most IOs had photonic properties, i.e., a photonic band gap, and by the “slow” photon effect enhanced absorbance, except the 326 nm IO, even though it also had an increase in absorbance. …”
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A comprehensive study on the electronic, optical, and light harvesting examination of mixed cation 2-Br-PEAI/FAPbI3 perovskite solar cells through first principles calculations and... by Mohammed Benali Kanoun, Adil Alshoaibi, Mousaab Belarbi, Souraya Goumri-Said

“…The results reveal that the mixed 2-Br-PEAI/FAPbI3 surface exhibits a band gap of 1.92 eV and a notably high absorption coefficient on the scale of 105 cm−1. …”
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Visible-Light-Active Titania Photocatalysts: The Case of N-Doped TiO2s—Properties and Some Fundamental Issues by Alexei V. Emeline, Vyacheslav N. Kuznetsov, Vladimir K. Rybchuk, Nick Serpone

“…Several workers have surmised that the (intrinsic) band gap of TiO2 is narrowed by coupling dopant energy states with valence band (VB) states, an inference based on DFT computations. …”
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Ultrafine dendritic Cu particles for extremely fast pressure-assisted sintering under air and pore-free bond lines by Sang Hoon Jung, Jong-Hyun Lee

“…To overcome the bottleneck of the die-attach process in the manufacture of power modules based utilizing band gap semiconductors, an extremely fast pressure-assisted sinter-bonding method employing a low-cost Cu paste was developed. …”
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Large exciton binding energy in a bulk van der Waals magnet from quasi-1D electronic localization by Shane Smolenski, Ming Wen, Qiuyang Li, Eoghan Downey, Adam Alfrey, Wenhao Liu, Aswin L. N. Kondusamy, Aaron Bostwick, Chris Jozwiak, Eli Rotenberg, Liuyan Zhao, Hui Deng, Bing Lv, Dominika Zgid, Emanuel Gull, Na Hyun Jo

“…Furthermore, we report that surface doping enables broad tunability of the band gap offering promise for engineering of the optical and electronic properties. …”
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Phytogenic Synthesis and Characterization of NiO-ZnO Nanocomposite for the Photodegradation of Brilliant Green and 4-Nitrophenol by Sirajul Haq, Aqsa Waheed Raja, Sadiq Ur Rehman, Amine Mezni, Manel Ben Ali, Amor Hedfi, Muhammad Imran Shahzad, Wajid Rehman, Nadia Shahzad, Muhammad Waseem, Pervaiz Ahmad

“…By using diffuse reflectance data (DRS), band gap energy calculated via Tauc plot was 3.23 eV. …”
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The effect of annealing on the structural, optical, electrical and photoelectric properties of ZnO/NiO heterostructures by M. Yermakov, R. Pshenychnyi, A. Opanasyuk, Yu. Gnatenko, P. Bukivskij, A. Bukivskii, O. Кlymov, V. Muñoz-Sanjosé, R. Gamernyk

“…Low-temperature photoluminescence (PL), as well as absorption and photoconductivity, were studied to establish the optical properties, the nature of electronic optical transitions, the energy level position of the different defects present in the samples, and the effect of temperature annealing on these properties The band gap of the compounds was determined using the Tauc approximation and the first derivative of the absorption coefficient. …”
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Studies on Characterization, Optical Absorption, and Photoluminescence of Yttrium Doped ZnS Nanoparticles by Ranganaik Viswanath, Halehatty Seethya Bhojya Naik, Yashavanth Kumar Gubbihally Somalanaik, Prashanth Kumar Parlesed Neelanjeneallu, Khandugadahalli Nagarajappa Harish, Mustur Channabasappa Prabhakara

“…The UV-visible spectra of ZnS and ZnS:Y nanoparticles showed a band gap energy value, 3.85 eV and 3.73 eV, which corresponds to a semiconductor material. …”
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Profiling the Properties of SILAR Synthesized MnSe Films as Potential Material for Absorber Layer of Thin Film Solar Cells by Asielue O Kingsley, Opene J Nkechi, Okoli N Livinus

“…Transmittance varied from 12.53% to 92.17%, decreasing with higher TEA concentrations. The energy band gap of the films decreased from 2.90 eV with 2 ml of TEA to 2.30 eV with 10 ml, highlighting the tunability of MnSe for photovoltaic applications. …”
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Microstructural and Optical Characterization of Heterostructures of ZnS/CdS and CdS/ZnS Synthesized by Chemical Bath Deposition Method by Temesgen Geremew, Tizazu Abza

“…The optical analysis results confirmed single band gap values of 2.75 eV and 2.5 eV for ZnS/CdS and CdS/ZnS heterojunction thin films, respectively. …”
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Preparation of p-type Fe2O3 nanoarray and its performance as photocathode for photoelectrochemical water splitting by Xiaoli Fan, Fei Zhu, Zeyi Wang, Xi Wang, Yi Zou, Bin Gao, Li Song, Jianping He, Tao Wang

“…The analysis results indicate that the Fe2O3 exhibits a spindle shaped nanoarray structure and possesses a small band gap, thereby demonstrating excellent photoelectrochemical performance as a photocathode with photocurrent density of −23 μA cm−2 at 0.4 V vs. …”
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Structural, elastic, electronic, magnetic and thermal properties of X3FeO4 (X = mg, ca and Sr) materials by Mohammed El Amine Monir, Abdelkarim Bendoukha Reguig, M. A. Ghebouli, K. Bouferrache, Faisal Katib Alanazi, M. Fatmi, H. Bouandas

“…The electronic characteristics calculated using the GGA and GGA + U approaches prove that all these compounds are semi-metallic with a wide band gap (EHM) and a high Curie temperature (TC). Furthermore, the magnetic moments of the studied compounds are calculated in order to claim their half-metallicity behavior. …”
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Structural, Electronic, Elastic, Mechanical, and Opto-Electronic Properties for ZnAg2SnS4 and ZnAg2Sn0.93Fe0.07S4 Photocatalyst Effort on Wastewater Treatment through the First Pri... by Mohammad Jahidul Islam, Md. Sabbir Hasan Sohag, Unesco Chakma, Ajoy Kumer, Md. Monsur Alam, Mohammed Nazrul Islam Khan

“…When the Ge (ZnAg2GeS4) atom has been swapped out by a Sn (ZnAg2SnS4) atom, the changes in band gap is noticeable, which rises from 0.94 eV to 1.15 eV with the same geometry and surface area. …”
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Visible light photocatalytic efficiency and corrosion resistance of Zn, Ni, and Cu-doped TiO2 coatings by Mona Khalaghi, Masoud Atapour, Mohamad Mohsen Momeni, Mohammad Reza Karampoor

“…The Cu, Ni, and Zn doping coatings show increased visible light absorption, with the band gap decreasing from 3.05 to 2.3, 2.8, and 2.85 eV, respectively. …”
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Investigation of Structural, Magnetic, and Optical Properties of ZnO Codoped with Co and Cd by Lubna Mustafa, Safia Anjum, Salma Waseem, Rehana Zia, Rameesha Choudhry, Shahid M. Ramay, Asif Mahmood, Shahid Atiq, Salah Ud-Din Khan

“…UV-VIS spectrophotometer is used to study the optical properties, which shows that band gap energy decreases with the increase in Cd concentration. …”
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Preparation and Photocatalytic Performances of WO3/TiO2 Composite Nanofibers by Xiuping Han, Binghua Yao, Keying Li, Wenjing Zhu, Xuyuan Zhang

“…Also, the enhanced photocatalytic mechanism was also proposed based on the detailed analysis of the band gap and the active species trapping experiment. …”
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Predicted thermodynamic structural and elastic properties of SrCuP and SrCuSb for thermoelectric applications by N. Bioud, N. Benchiheub, A. Benamrani, M. A. Ghebouli, M. Fatmi, Faisal Katib Alanazi, R. Yekhlef

“…The absence of virtual phonon frequencies indicates high dynamic stability in both materials, with a band gap about 1 THz between optical and acoustic phonons in SrCuP and SrCuSb.…”
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Photocatalytic Degradation of Rhodamine B by C and N Codoped TiO2 Nanoparticles under Visible-Light Irradiation by Thuy Thi Thanh Le, Trinh Dinh Tran

“…C, N-TiO2 nanoparticles exhibited an energy band gap of 2.90 eV, which were lower than pristine TiO2 (3.34 eV), C-TiO2 (3.2 eV), and N-TiO2 (3.03 eV). …”
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