The properties of fluorine-doped graphene-based intermediate band solar cell materials by Lingyun Sun

“…The reason for this phenomenon should be that the polarity of C-F bonds is much larger than that between C-C bonds, and the doping of fluorine atoms causes the charge transfer between atoms, resulting in the opening of the graphene band gap and the introduction of the intermediate band.…”
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TiO2/ZnS/CdS Nanocomposite for Hydrogen Evolution and Orange II Dye Degradation by Václav Štengl, Daniela Králová

“…Doped titanium dioxide by the CdS increased band-gap energy and doping with ZnS increased photocatalytic activity. …”
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Influence of Air Annealing and Gamma Ray Irradiation on the Optical Properties of Cl16FePc Thin Films by Raji Koshy, C. S. Menon

“…Optical transition is found to be of direct type and optical band gaps are determined by analyzing the absorption spectrum. …”
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Electrical Response of CdS Thin Film and CdS/Si Heterojunction to Gamma Radiation by M. R. Balboul, A. Abdel-Galil, I. S. Yahia, A. Sharaf

“…The γ-irradiation was found to increase the concentration of the deep traps within the band gap of the CdS/Si heterojunction.…”
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Effect of Fe Concentration on Fe-Doped Anatase TiO2 from GGA + U Calculations by Hsuan-Chung Wu, Sheng-Hong Li, Syuan-Wei Lin

“…Additionally, a broadening of the valence band and Fe impurity states within the band gap might also contribute to the photocatalytic activity.…”
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Mechanisms of Visible Light Photocatalysis in N-Doped Anatase TiO2 with Oxygen Vacancies from GGA+U Calculations by Hsuan-Chung Wu, Yu-Siang Lin, Syuan-Wei Lin

“…The calculated results have shown that a significant band gap narrowing may only occur in heavy nitrogen doping. …”
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Synthesis, Characterization, and Low Temperature Sintering of Nanostructured BaWO4 for Optical and LTCC Applications by S. Vidya, Sam Solomon, J. K. Thomas

“…The basic optical properties and optical constants of the nano BaWO4 are studied using UV-visible absorption spectroscopy which showed that the material is a wide band gap semiconductor with band gap of 4.1 eV. The sample shows poor transmittance in ultraviolet region while maximum in visible-near infrared regions. …”
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Quantum mechanical insights into Edge-Dependent electronic properties of phosphorene nanoribbons by Mohammadamir Bazrafshan, Adeleh Vatankhahan, Farhad Khoeini, Omid Farzadian

“…Phosphorene, known for its anisotropic physical properties, exhibits a direct moderate electronic band gap, making it a candidate for electronic applications. …”
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Single Step In Situ Synthesis and Optical Properties of Polyaniline/ZnO Nanocomposites by Deepali Sharma, B. S. Kaith, Jaspreet Rajput

“…The reported values depicted the blue shift in nanocomposites as compared to the band gap energies of synthesized ZnO nanostructures. …”
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Panoramic analysis of 2D dirubidium telluride monolayer benchmarking the DFT approach by G. Sneha, R. D. Eithiraj

“…The trigonally crystallizing monolayer with an indirect band gap of 1.72 eV may be an upright single-layer that suffices distinct applications. …”
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Design and Simulation of an Environment-Friendly ZrS2/CuInS2 Thin Film Solar Cell Using SCAPS 1D Software by Sunirmal Kumar Biswas, Monira Khanom Mim, Md. Mostak Ahmed

“…The best performance of proposed solar cell structure thickness, band gap, and donor density for n-ZrS2 is 0.3 µm, 1.7 eV, 1 × 1019 cm−3, and for p-CuInS2, respectively, 4 µm, 1.43 eV, 2 × 1017 cm−3. …”
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Optical Characterization of Zinc Modified Bismuth Silicate Glasses by Rajesh Parmar, J. Hooda, R. S. Kundu, R. Punia, N. Kishore

“…The band gap energy is found to increase with increase of ZnO content. …”
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Formulation and validation of mathematical model for co-sputtering conditions to attain stoichiometric CZTS films: Expedience of using all metal sulfide targets by Munira Sultana, Afrina Sharmin, Md Rashed Alam, Shahran Ahmed, Md Aftab Ali Shaikh, M.S. Bashar

“…When studied at different deposition pressures, carrier concentration, resistivity, band gap, and crystallite size show significant correlations. …”
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Direct probing of energy gaps and bandwidth in gate-tunable flat band graphene systems by Jin Jiang, Qixuan Gao, Zekang Zhou, Cheng Shen, Mario Di Luca, Emily Hajigeorgiou, Kenji Watanabe, Takashi Taniguchi, Mitali Banerjee

“…Then, we extend this method to analyze the evolution of the band gap and the flat bandwidth in twisted mono-bilayer graphene. …”
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Optical and electronic properties of hybrid organic-inorganic perovskite type [NH3-(CH2)3-COOH]2HgCl4 by Ouaaka El Mustafa, Khechoubi El Mostafa

“…The experimental and theoretical (DFT) band gap values are compared.…”
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The effect of uniaxial compressive and tensile strains on the structural, dynamical, electronic, and optical properties of ZrCl2 monolayer: Ab-initio calculations by Hind Alqurashi, Bothina Hamad, M.O. Manasreh

“…The unstrained ZrCl2 ML has a semiconducting behavior with an indirect band gap of 1.19 eV. Under the uniaxial compressive tensile stress (εx) of −6%, −4%, −2%, the ZrCl2 ML retains the semiconducting behavior with indirect band gaps of 0.00, 0.30, 0.73, respectively. …”
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Enhanced Visible Light Photocatalytic Activity of Mesoporous Anatase TiO2 Codoped with Nitrogen and Chlorine by Xiuwen Cheng, Xiujuan Yu, Zipeng Xing, Lisha Yang

“…It was found that N-Cl-TiO2 catalyst exhibited higher visible light photocatalytic activity than that of P25 TiO2 and N-TiO2, which was attributed to the small crystallite size, intense light absorption in visible region, and narrow band gap.…”
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Comprehensive Structural, Chemical, and Optical Characterization of Cu₂ZnSnS₄ Films on Kapton Using the Automated Successive Ionic Layer Adsorption and Reacti... by Perla J. Vázquez-González, Martha L. Paniagua-Chávez, Lizette A. Zebadua-Chavarria, Rafael Mota-Grajales, C. A. Meza-Avendaño, Enrique Campos-González, A. Escobosa-Echavarría, Yaoqiao Hu, Aldo E. Pérez-Ramos, Manuel-Matuz, Carlos A. Hernández-Gutiérrez

“…An optical analysis demonstrated that annealing at 200 °C in an air atmosphere reduced the band gap from 1.53 eV to 1.38 eV. In contrast, annealing at 400 °C and 450 °C in a sulfur atmosphere increased the band gap to 1.59 eV and 1.63 eV, respectively. …”
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Reduction of absorption of Ta2O5 monolayers through the suppression of structural defects by employing an appropriate ionic oxygen concentration by Lin Wang, Weili Zhang, Ruijin Hong, Kun Wang, Menglei Wang, Qinmin Wang, Kui Yi, Jianda Shao

“…In this study, Ta2O5 monolayers were deposited using an ion-assisted electron beam evaporation technique, and the weak absorption at 1064 nm, temperature rise, optical band gap, element content, and binding energy were tested and analyzed. …”
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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. …”
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