Fast Near‐Infrared Organic Photodetectors with Enhanced Detectivity by Molecular Engineering of Acceptor Materials by Wentao Zhong, Xinyuan Wang, Wei Wang, Zhulu Song, Yirong Tang, Bulin Chen, Tingbin Yang, Yongye Liang

“…A new fused ring electron acceptor, ICS (2,2'‐((2Z,2'Z)‐(((4,4‐bis(2‐ethylhexyl)‐4H‐cyclopenta[2,1‐b:3,4‐b']dithiophene‐2,6‐diyl)bis(4‐((2‐ethylhexyl)thio)thiophene‐5,2‐diyl))bis(methaneylylidene))bis(5,6‐difluoro‐3‐oxo‐2,3‐dihydro‐1H‐indene‐2,1‐diylidene))dimalononitrile), is developed with alkylthio thiophene as the bridge, achieving a small bandgap of 1.35 eV while decreasing dark current densities under reverse bias. …”
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Efficient Inverted ITO-Free Organic Solar Cells Based on Transparent Silver Electrode with Aqueous Solution-Processed ZnO Interlayer by Zhizhe Wang, Dazheng Chen, Chunfu Zhang, Zhenhua Lin, Yan Liu, Genquan Han, Jingjing Chang, Jincheng Zhang, Lixin Guo, Yue Hao

“…Efficient inverted organic solar cells (OSCs) with the MoO3 (2 nm)/Ag (12 nm) transparent cathode and an aqueous solution ZnO electron extraction layer processed at low temperature are investigated in this work. The blend of low bandgap poly[[4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b′]dithiophene-2,6-diyl][3-fluoro-2-[(2-ethylhexyl)carbonyl]thieno[3,4-b]thiophenediyl]] (PTB7) and [6,6]-phenyl-C71-butyric acid methylester (PC71BM) is employed as the photoactive layer here. …”
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Novel 2D/3D Heterojunction for UV Light‐Emitting Diodes Using Hexagonal Boron Nitride as Hole Injection Layer by Andre Perepeliuc, Rajat Gujrati, Phuong Vuong, Vishnu Ottapilakkal, Thi May Tran, Mohamed Bouras, Ali Kassem, Ashutosh Srivastava, Tarik Moudakir, Gilles Patriarche, Paul Voss, Suresh Sundaram, Jean Paul Salvestrini, Abdallah Ougazzaden

“…Although p‐doped h‐BN, with a bandgap of 5.9 eV, has been proposed as a potential replacement of p‐doped AlGaN, there have not been demonstrations of LEDs fabricated from p‐doped h‐BN/AlGaN heterostructures. …”
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Modelling of structural, mechanical, electronic, and optical properties of Rb2TlXF6 (X = Ir, Rh) double perovskite compounds through density functional theory by Wasi Ullah, Nasir Rahman, Mudasser Husain, Wafa Mohammed Almalki, Khamael M. Abualnaja, Ghaida Alosaimi, Soufyane Belhachi, Bashar.M. Al-Khamiseh, Vineet Tirth, Ahmed Azzouz-Rached, Hanan A. Althobaiti, Farooq Ali

“…Electronic band structure calculations categorize Rb2TlIrF6 and Rb2TlRhF6 as direct bandgap semiconductors, with respective bandgaps of 2.61 eV and 1.94 eV at the L–L symmetry points, underscoring their potential in optoelectronic applications. …”
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The Impact of Carbon on Electronic Structure of N-Doped ZnO Films: Scanning Photoelectron Microscopy Study and DFT Calculations by Elzbieta Guziewicz, Sushma Mishra, Matteo Amati, Luca Gregoratti, Oksana Volnianska

“…It has been shown that different columns reveal considerably different shape of the valence band (VB) photoemission spectra and that some of them are shifted towards the bandgap. The shift of the VB maximum, which is associated with hybridization with acceptor states, was found to be correlated with carbon content measured as a relative intensity of the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>C</mi><mn>1</mn><mi>s</mi></mrow></semantics></math></inline-formula> and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>Z</mi><mi>n</mi><mn>3</mn><mi>d</mi></mrow></semantics></math></inline-formula> core levels. …”
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Dielectric Temperature Stability and Enhanced Energy-Storage Performance of Sr_0.4Ba_0.6(Zr_0.2Ti_0.2Sn_0.2Ta_0.2Nb<sub>... by Yingying Zhao, Ziao Li, Shiqiang Yang, Pu Mao, Ruirui Kang

“…Furthermore, these ceramics possessed a high bandgap of 3.35 eV, which, when combined with the small grain size, contributed to a remarkable breakdown strength of 570.01 kV/cm. …”
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Investigation of the Performance of a Sb2S3-Based Solar Cell with a Hybrid Electron Transport Layer (h-ETL): A Simulation Approach Using SCAPS-1D Software by Pierre Gérard Darel Kond Ngue, Ariel Teyou Ngoupo, Aimé Magloire Ntouga Abena, François Xavier Abomo Abega, Jean-Marie Bienvenu Ndjaka

“…It has better band alignment with the Sb2S3 absorber than TiO2 ETL, which reduces the trap states at the ETL/Sb2S3 interface; it has high transparency due to its wide bandgap; and an intense electric field is generated at the IGZO/Sb2S3 interface, which reduces the recombination phenomenon at this interface. …”
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Energetic disorder dominates optical properties and recombination dynamics in tin-lead perovskite nanocrystals by Dandan Wang, Yusheng Li, Yongge Yang, Chao Ding, Yuyao Wei, Dong Liu, Hua Li, Huan Bi, Shikai Chen, Sujun Ji, Boyu Zhang, Yao Guo, Huiyun Wei, Hongshi Li, Shuzi Hayase, Qing Shen

“…Surprisingly, we find that static and dynamic disorder primarily control band-tail defect states and bandgap renormalization, respectively, which together modulate fast carrier trapping and slow band-band recombination rates. …”
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Enhanced UV–Vis Rejection Ratio in Metal/BaTiO3/β‐Ga2O3 Solar‐Blind Photodetectors by Nathan Wriedt, Lingyu Meng, Dong Su Yu, Chris Chae, Kyle Liddy, Ashok Dheenan, Sushovan Dhara, Roberto C. Myers, Oleg Maksimov, Richard Blakeley, Sanjay Krishna, Jinwoo Hwang, Hongping Zhao, Joe McGlone, Siddharth Rajan

“…Abstract The fabrication and characterization of metal/BaTiO3/β‐Ga2O3 solar‐blind photodetectors are reported. β‐Ga2O3 is a promising material for solar‐blind photodetectors due to its large bandgap and the availability of low defect‐density melt‐grown substrates. …”
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Crystal growth principles, methods, properties of silicon carbide and its new process prepared from silicon cutting waste by Shengqian Zhang, Yongsheng Ren, Xingwei Yang, Wenhui Ma, Hui Chen, Guoqiang Lv, Yun Lei, Yi Zeng, Zhengxing Wang, Bingxi Yu

“…The third-generation semiconductor silicon carbide (SiC) has attracted widespread attention due to its excellent properties, such as high thermal conductivity, large bandgap, high breakdown field strength, and high saturation electronic drift rate, etc. …”
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Achieving 32.9% efficiency in Pb-Based quantum dot solar cells via SCAPS-1D simulation optimization by Md Hasnain, Abdul Wahed, Joyonta Das, Bassim Arkook, Moussab Harb, Nasim Mia

“…Conversely, PbSe’s performance declined with increased thickness because of its layer-dependent bandgap. We found that lower defect densities ( $1 \times 10^{14}$ cm ^−3 ) critically improve PCE and fill factor across all materials. …”
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Fabrication and Electrochemical Behavior Investigation of a Pt-Loaded Reduced Graphene Oxide Composite (Pt@rGO) as a High-Performance Cathode for Dye-Sensitized Solar Cells by Viet Hai Le, Thai Hoang Nguyen, Huu Hieu Nguyen, Le Thanh Nguyen Huynh, An Le Vo, Thi Kim Tuyet Nguyen, Duc Thinh Nguyen, Vinh Quang Lam

“…The rGO component in the Pt@rGO composite plays two important roles: (i) facilitating the electron transfer between Pt NPs catalyst and the FTO substrate via the bandgap effect and (ii) the enlargement catalytic surface area of Pt NPs via the loading effect. …”
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Nonlinear optical response of thermally stable perovskite for near-infrared optical modulator by Jiang Wang, Liang Xie, Jingjing Liu, Yuxuan Sun, Jinglong Xu, Jiacheng Li, Zhongying Zhang, Chengbing Qin, Liantuan Xiao, Guofeng Zhang, Yonggang Wang, Zhichun Yang, Guanghua Cheng

“…Metal halide perovskite has generated significant attention due to its high optical absorption coefficient, the tunability of bandgap, and its solution processing properties, all of which have led to a range of applications including solar cells, photodetectors, light-emitting diodes and lasers. …”
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Rational composition engineering for high‐quality Pb–Sn photodetector toward sensitive near‐infrared digital imaging arrays by Huan Li, Yu Gao, Xin Hong, Kanghui Ke, Zilong Ye, Siwei Zhang, Kefei Shi, Zhuo Peng, Hao Yan, Man‐Chung Tang, Youwei Yao, Ben Zhong Tang, Guodan Wei, Feiyu Kang

“…Abstract Broadband photodetectors (PDs) capable of multi‐wavelength detection have garnered significant interest for applications in environmental monitoring, optical communication, spectral analysis, and imaging sensing. Low‐bandgap Pb–Sn hybrid perovskite photodetectors can extend the spectral response from the ultraviolet–visible (UV–vis) range to the near‐infrared (NIR) and reduce the toxicity associated with Pb2+. …”
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Realizing low voltage-driven bright and stable quantum dot light-emitting diodes through energy landscape flattening by Yiting Liu, Yingying Sun, Xiaohan Yan, Bo Li, Lei Wang, Jianshun Li, Jiahui Sun, Yaqi Guo, Weipeng Liu, Binbin Hu, Qingli Lin, Fengjia Fan, Huaibin Shen

“…The record-high luminance levels of 1,400 and 8,600 cd m-2 are achieved at bandgap voltages of 100% and 120%, respectively. Meanwhile, These LEDs show an unprecedented operation lifetime T95 (time for the luminance to decrease to 95%) of 72,968 h at 1,000 cd m-2. …”
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Sublimed C60 for efficient and repeatable perovskite-based solar cells by Ahmed A. Said, Erkan Aydin, Esma Ugur, Zhaojian Xu, Caner Deger, Badri Vishal, Aleš Vlk, Pia Dally, Bumin K. Yildirim, Randi Azmi, Jiang Liu, Edward A. Jackson, Holly M. Johnson, Manting Gui, Henning Richter, Anil R. Pininti, Helen Bristow, Maxime Babics, Arsalan Razzaq, Suman Mandal, Thomas G. Allen, Thomas D. Anthopoulos, Martin Ledinský, Ilhan Yavuz, Barry P. Rand, Stefaan De Wolf

“…We find that the coalescence is due to oxygen present in the initial source powder and leads to the formation of deep states within the perovskite bandgap, resulting in a systematic decrease in solar cell performance. …”
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Fractal Acoustic Metamaterials with Subwavelength and Broadband Sound Insulation by Yu Liu, Meng Chen, Wenshuai Xu, Tao Yang, Dongliang Pei, Heng Jiang, Yuren Wang

“…The results illustrate that it is easy to form low-frequency bandgaps using these materials and thus achieve subwavelength-scale sound control. …”
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Labyrinthine Structure with Subwavelength and Broadband Sound Insulation by Heng Jiang, Yu Liu, Wenshuai Xu, Tao Yang, Dongliang Pei, Meng Chen, Yuren Wang

“…These results show labyrinthine structures have multiple bandgaps in the range of 0 Hz–1000 Hz, and the proportion of bandgaps exceeds 33%, which indicates labyrinthine structures have good broadband properties. …”
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Information Requirements of Landscape Architects by Oya Akkan, Gaye Çulcuoğlu

“…Difficulties faced by landcape architects, who do research work, in access to information have been expressed as lack of guidance on how and where to find information; limited open hours or not being abl? …”
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O discurso sobre a precariedade em Luiz Ruffato e Arlindo Gonçalves by José Leonardo Tonus

“…In both novels, the device of landcape contibutes both to the triggering element of artistic creation as much as its failure. …”
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