Hybrid spin coating and evaporation techniques for fabricating double-layer stacked dual-color perovskite LEDs by Ching-Ho Tien, Jen-Yu Fang, Lung-Chien Chen

“…This change was attributed to the variation in the recombination positions of charge carriers in different bandgap materials at different voltages. At low voltage, carriers recombine in the layer with a smaller bandgap, emitting red light; whereas at high voltage, carriers recombine in the layer with a larger bandgap, emitting green light.…”
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Performance and stability analysis of all-perovskite tandem photovoltaics in light-driven electrochemical water splitting by Junke Wang, Bruno Branco, Willemijn H. M. Remmerswaal, Shuaifeng Hu, Nick R. M. Schipper, Valerio Zardetto, Laura Bellini, Nicolas Daub, Martijn M. Wienk, Atsushi Wakamiya, Henry J. Snaith, René A. J. Janssen

“…We observe severe charge collection losses in the narrow-bandgap sub-cell that can be attributed to the interface degradation between the narrow-bandgap perovskite and the hole-transporting layer. …”
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Effects of CdS Buffer Layers on Photoluminescence Properties of Cu2ZnSnS4 Solar Cells by A. Le Donne, S. Marchionna, P. Garattini, R. A. Mereu, M. Acciarri, S. Binetti

“…The emissions observed in the as-grown samples were monitored by both above and below bandgap excitations also in standard CZTS solar cells produced on the same layers. …”
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Scrutinizing the untapped potential of emerging ABSe3 (A = Ca, Ba; B = Zr, Hf) chalcogenide perovskites solar cells by Dhineshkumar Srinivasan, Aruna-Devi Rasu Chettiar, Eupsy Navis Vincent Mercy, Latha Marasamy

“…Abstract ABS3chalcogenide perovskites (CPs) are emerging as promising alternatives to lead halide perovskites due to their unique properties. However, their bandgap exceeds the Shockley-Queisser limit. By substituting S with Se, the bandgap is significantly reduced, shifting it from the visible into the near-infrared region. …”
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Electronic, Structural, and Optical Properties of Zinc Blende and Wurtzite Cadmium Sulfide (CdS) Using Density Functional Theory by Teshome Gerbaba Edossa, Menberu Mengasha Woldemariam

“…Analysis of the results shows that LDA and GGA underestimate the bandgap due to their poor approximation of exchange-correlation functional. …”
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Controlled Fabrication of Native Ultra‐Thin Amorphous Gallium Oxide From 2D Gallium Sulfide for Emerging Electronic Applications by AbdulAziz AlMutairi, Aferdita Xhameni, Xuyun Guo, Irina Chircă, Valeria Nicolosi, Stephan Hofmann, Antonio Lombardo

“…Gallium (II) sulfide (β‐GaS), a hexagonal phase group III monochalcogenide, is a wide bandgap semiconductor with a bandgap exceeding 3 eV in single and few‐layer form. …”
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Target Detection Using Fused Unidentical Photonics-Based LFM Sub-Band Radar Signals With an Adaptive Feed Forward Network Equalizer by Bikash Nakarmi, S. M. Rezwanul Islam, Hum Nath Parajuli, Ikechi Augustine Ukaegbu, Aigerim Ashimbayeva, Carlo Molardi, T. D. Subash, Xiangchuan Wang, Shilong Pan

“…We demonstrate this using optical injection in a semiconductor laser to generate Ph-LFM signals at different IEEE X-KA radar sub-bands: 19.25–23.94 GHz and 24.06–28.31 GHz (bandgap 0.12 GHz), 19.69–23.06 GHz and 23.625–27 GHz (bandgap 0.56 GHz), and 8–11.5 GHz and 12.75–17 GHz (bandgap 1.25 GHz). …”
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Electronic and spintronic transport in gapped graphene-based FG/SG/FG junctions by Hossein Karbaschi, Gholamreza Rashedi

“…Conductivity trends with ferromagnetic exchange energy display a decline followed by an upturn beyond a critical point. The graphene energy bandgap notably influences Giant Magnetoresistance (GMR), with larger bandgaps yielding higher GMR magnitudes. …”
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Roles of doping in enhancing the performance of graphene/graphene-like semiconductors by Yuqi Zhou, Xinbo He, Mengyang Li

“…However, graphene is intrinsically a zero-bandgap material, limiting its development in the field of flexible nanoelectronics. …”
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Simulation of Nonpolar p-GaN/i-N/n-GaN Solar Cells by Ming-Jer Jeng

“…To reduce a high barrier height, some graded layers with an energy bandgap between the energy bandgap of n-GaN and InxGa1−xN intrinsic layer can be inserted to the interface of n-GaN and InxGa1-xN layers. …”
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Structure dependent optical and conductive properties of HPMC:CoCl2 composites: A functional data analysis study by Gowtham G K, Thejas G. Urs

“…In addition, employing the tightly bound electron model, we detail the bandgap variation in these composites concerning the dopant concentration. …”
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Leaky Wave Array in Full Planar Substrate with EBG-Based Wave Guiding Channel by Linghui Kong, Sen Yan, Vladimir Volskiy, Binke Huang, Guy A. E Vandenbosch

“…The guiding channel is developed on the full planar dielectric substrate and aligned with electromagnetic bandgap (EBG) units. Since the bandgap of these mushroom-like units is calculated with a coverage of the channel working band, these units are of great importance on ensuring the transmission efficiency and eliminating the coupling effect between channels. …”
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Novel In Situ Fabrication of Fe-Doped Zinc Oxide/Tin Sulfide Heterostructures for Visible-Light-Driven Photocatalytic Degradation of Methylene Blue by Govinda Dharmana, Thirumala Rao Gurugubelli, Balaga Viswanadham, Babu Bathula, Kisoo Yoo

“…Additionally, absorption spectroscopy revealed a decrease in the energy bandgap with an increase in Fe content, and photoluminescence analysis demonstrated that the ZSF3 sample significantly reduced the rate of recombination of charge carriers. …”
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Ferromagnetic Nickel as a Sustainable Reducing Agent for Tin–Lead Mixed Perovskite in Single‐Junction and Tandem Solar Cells by Doyun Im, Passarut Boonmongkolras, Yeonghun Yun, Sung Woong Yang, Sunwoo Kim, Jungchul Yun, Rajendra Kumar Gunasekaran, You‐Hyun Seo, Nam Joong Jeon, Gill Sang Han, Sangwook Lee

“…The unique bandgap tunability of halide perovskites enables optimal tandem configurations of wide‐bandgap (WBG) and NBG subcells. …”
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Unveiling the nexus between irradiation and phase reconstruction in tin-lead perovskite solar cells by Wenbo Li, Zhe Li, Shun Zhou, Yanzhuo Gou, Guang Li, Jinghao Li, Cheng Wang, Yan Zeng, Jiakai Yan, Yan Li, Wei Dai, Yaoguang Rong, Weijun Ke, Ti Wang, Hongxing Xu

“…Abstract Tin-lead perovskites provide an ideal bandgap for narrow-bandgap perovskites in all-perovskite tandem solar cells, fundamentally improving power conversion efficiency. …”
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Kinetics, thermodynamics, and catalysis of the cation incorporation into GeO2, SnO2, and (SnxGe1−x)O2 during suboxide molecular beam epitaxy by Wenshan Chen, Kingsley Egbo, Joe Kler, Andreas Falkenstein, Jonas Lähnemann, Oliver Bierwagen

“…Rutile GeO2 is a promising ultra-wide bandgap semiconductor for future power electronic devices whose alloy with the wide bandgap semiconductor rutile-SnO2 enables bandgap engineering and the formation of heterostructure devices. …”
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Design of Multijunction Photovoltaic Cells Optimized for Varied Atmospheric Conditions by C. Zhang, J. Gwamuri, R. Andrews, J. M. Pearce

“…Indium gallium nitride and other PV materials offer the opportunity for limited bandgap engineering to match spectra. The effects of atmospheric conditions such as aerosols, cloud cover, water vapor, and air mass have been shown to cause variations in spectral radiance that alters PV system performance due to both overrating and underrating. …”
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Vibration Reduction Method for Power Cabin of Torpedoes Based on Acoustic Metamaterials by Xuyang SUN, Jingjun ZHOU, Qian WANG, Zhimin ZHANG

“…Firstly, the vibration response characteristics of the power cabin under axial excitation were analyzed, and a local resonance unit structure of the cantilever beam was designed. The bandgap characteristics and vibration reduction effect of the structure were analyzed. …”
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Electronic Structure and Optical Properties of GaAs Doped with Rare-Earth Elements (Sc, Y, La, Ce, and Pr) by Yongrong Deng, Chunhong Zhang, Xinmao Qin, Wanjun Yan

“…Band structure calculations indicated that the lowest conduction band and highest valence band were evident at the G-point, demonstrating that rare-earth-element doping did not alter the material type of GaAs, which remained a direct-bandgap semiconductor. The bandgap of Sc-doped GaAs increased, whereas those of Y-, La-, Ce-, and Pr-doped GaAs decreased. …”
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Fluorine-expedited nitridation of layered perovskite Sr2TiO4 for visible-light-driven photocatalytic overall water splitting by Jinxing Yu, Jie Huang, Ronghua Li, Yanbo Li, Gang Liu, Xiaoxiang Xu

“…In this work, an F-expedited nitridation strategy is applied to modify the wide-bandgap semiconductor Sr2TiO4 for visible-light-driven photocatalytic overall water splitting. …”
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