Solution processable perovskite-hybrid heterojunction silicon 4T tandem solar cells by Mohammad Adil Afroz, Bhavna Sharma, Ruchi K. Sharma, Ritesh Kumar Gupta, Ankita Sengupta, Sanjay K. Srivastava, Soumitra Satapathi

“…The proposed 4-terminal tandem architecture exploits light management through the bandgap matching of the perovskite cell with silicon to minimize thermalization and absorption losses. …”
Get full text

An experimental study on photocatalytic degradation to free river water from toxic dye pollutant using Zn doped TiO2 nanoparticles by Sarathi R, Sheeba N. L., Selva Esakki E, Renuga Devi L, Meenakshi Sundar S

“…From the XRD Spectra average crystallite size, lattice parameters, volume of unit cell are studied. The bandgap of the material was found by using UV-Vis absorbance Spectroscopy. …”
Get full text

Supercontinuum generation in scintillator crystals by Vaida Marčiulionytė, Gintaras Tamošauskas, Matas Šutovas, Audrius Dubietis

“…The measured cut-off wavelengths at the short-wavelength side are in line with the general trend of blue-shifted spectral broadening on the bandgap of nonlinear material. All the nonlinear materials produced reasonable red-shifted spectral broadenings under conditions of optimal pump pulse energies, with the largest red-shift exceeding 2000 nm measured in GGG crystal. …”
Get full text

Characteristics of Nanocrystallite-CdS Produced by Low-Cost Electrochemical Technique for Thin Film Photovoltaic Application: The Influence of Deposition Voltage by Obi Kingsley Echendu, Francis Birhanu Dejene, Imyhamy Mudiy Dharmadasa, Francis Chukwuemeka Eze

“…All the annealed films show energy bandgap of 2.42 eV. Scanning electron microscopy and energy dispersive X-ray analyses show that grains on the surface of the films tend to get cemented together after annealing with prior CdCl2 treatment while all the films are S-rich.…”
Get full text

GaN Nanopowder synthesis via nitridation: Fabrication and characterization of GaN thin Films for UV detection applications by Mahdi Hajimazdarani, Peyman Yaghoubizadeh, Ali Jafari, Ali Kenarsari Moghadam, Mojtaba Hajimazdarani, Mohammad Javad Eshraghi

“…Additionally, ultraviolet diffuse reflectance spectroscopy measurements revealed a bandgap of 3.37 eV for the deposited thin film. Additionally, gold electrodes were deposited on the gallium nitride thin film, and the optical sensor's detection properties were evaluated, demonstrating a sensitivity of 133.6 along with rise and fall times of 18 ms and 15 ms, respectively. …”
Get full text

Intervalence plasmons in boron-doped diamond by Souvik Bhattacharya, Jonathan Boyd, Sven Reichardt, Valentin Allard, Amir Hossein Talebi, Nicolò Maccaferri, Olga Shenderova, Aude L. Lereu, Ludger Wirtz, Giuseppe Strangi, R. Mohan Sankaran

“…Abstract Doped semiconductors can exhibit metallic-like properties ranging from superconductivity to tunable localized surface plasmon resonances. Diamond is a wide-bandgap semiconductor that is rendered electronically active by incorporating a hole dopant, boron. …”
Get full text

A thin film optoelectronic photodetector of spherical and linear resonators via one-pot synthesis of Bi(III) oxide/polypyrrole nanocomposite by Fatemah H. Alkallas, Mohamed Rabia, Fedor V. Kusmartsev, Amira Ben Gouider Trabelsi

“…The XRD analysis reveals that the Bi2O3 nanoparticles have a poly-crystalline nature with a crystal size of 40 nm and an optical bandgap of 2.86 eV. The SEM images show that the nanoparticles are agglomerated into clusters of about 100 nm in diameter, with pores of about 200 nm in width. …”
Get full text

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. …”
Get full text

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). …”
Get full text

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. …”
Get full text

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. …”
Get full text

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. …”
Get full text

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. …”
Get full text

A Metallo-Dielectric Groove Gap Waveguide Slotted Array Antenna With Hybrid Glide-Symmetric Holes & “Mushroom”-Type Metasurfaces by Panagiotis Petroutsos, Stavros Koulouridis

Get full text

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. …”
Get full text

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. …”
Get full text

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. …”
Get full text

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. …”
Get full text

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

Get full text

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. …”
Get full text