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  • Article
  • Open Access
8 Citations
3,996 Views
12 Pages

Engineering Band Gap of Ternary Ag2TexS1−x Quantum Dots for Solution-Processed Near-Infrared Photodetectors

  • Zan Wang,
  • Yunjiao Gu,
  • Daniil Aleksandrov,
  • Fenghua Liu,
  • Hongbo He and
  • Weiping Wu

Silver-based chalcogenide semiconductors exhibit low toxicity and near-infrared optical properties and are therefore extensively employed in the field of solar cells, photodetectors, and biological probes. Here, we report a facile mixture precursor h...

  • Article
  • Open Access
16 Citations
6,338 Views
15 Pages

12 March 2019

Boron carbonitride (BCN) films containing hybridized bonds involving elements B, C, and N over wide compositional ranges enable an abundant variety of new materials, electronic structures, properties, and applications, owing to their semiconducting p...

  • Article
  • Open Access
2 Citations
3,266 Views
10 Pages

Carbon-Based Band Gap Engineering in the h-BN Analytical Modeling

  • Mohammad Taghi Ahmadi,
  • Ahmad Razmdideh,
  • Seyed Saeid Rahimian Koloor and
  • Michal Petrů

25 February 2020

The absence of a band gap in graphene is a hindrance to its application in electronic devices. Alternately, the complete replacement of carbon atoms with B and N atoms in graphene structures led to the formation of hexagonal boron nitride (h-BN) and...

  • Article
  • Open Access
3 Citations
2,894 Views
10 Pages

Band-Gap Engineering: Lithium Effect on the Electronic Properties of Hydrogenated 3C-SiC (1 1 0) Surfaces

  • Jose Luis Cuevas,
  • Miguel Ojeda Martinez and
  • Saravana Prakash Thirumuruganandham

18 November 2022

Silicon carbide has structural strength, high electronic conductivity, low diffusion barrier and high storage capacity, which are suitable for engineering applications such as lithium-ion batteries, electric vehicles, uninterruptible power supplies a...

  • Article
  • Open Access
4 Citations
2,852 Views
13 Pages

Molecular Engineering Enhances the Charge Carriers Transport in Wide Band-Gap Polymer Donors Based Polymer Solar Cells

  • Siyang Liu,
  • Shuwang Yi,
  • Peiling Qing,
  • Weijun Li,
  • Bin Gu,
  • Zhicai He and
  • Bin Zhang

8 September 2020

The novel and appropriate molecular design for polymer donors are playing an important role in realizing high-efficiency and high stable polymer solar cells (PSCs). In this work, four conjugated polymers (PIDT-O, PIDTT-O, PIDT-S and PIDTT-S) with ind...

  • Article
  • Open Access
606 Views
18 Pages

Fabrication and Characterization of Back-Gate and Front-Gate Ge-on-Insulator Transistors for Low-Power Applications

  • Yuhui Ren,
  • Jiale Su,
  • Jiahan Ke,
  • Hongxiao Lin,
  • Ben Li,
  • Zhenzhen Kong,
  • Yiwen Zhang,
  • Junhao Du,
  • Renrong Liang and
  • Henry H. Radamson
  • + 7 authors

26 November 2025

Germanium (Ge) has long been regarded as a promising channel material, owing to its superior carrier mobility and highly tunable electronic band structure. The new generation of low-power electronics is approaching the formation of fully depleted (FD...

  • Article
  • Open Access
9 Citations
3,544 Views
12 Pages

26 September 2024

The integration of perovskite materials in solar cells has garnered significant attention due to their exceptional photovoltaic properties. However, achieving a bandgap energy below 1.2 eV remains challenging, particularly for applications requiring...

  • Article
  • Open Access
29 Citations
7,559 Views
11 Pages

Ti Alloyed α-Ga2O3: Route towards Wide Band Gap Engineering

  • Armin Barthel,
  • Joseph Roberts,
  • Mari Napari,
  • Martin Frentrup,
  • Tahmida Huq,
  • András Kovács,
  • Rachel Oliver,
  • Paul Chalker,
  • Timo Sajavaara and
  • Fabien Massabuau

20 December 2020

The suitability of Ti as a band gap modifier for α-Ga2O3 was investigated, taking advantage of the isostructural α phases and high band gap difference between Ti2O3 and Ga2O3. Films of (Ti,Ga)2O3 were synthesized by atomic layer depositio...

  • Review
  • Open Access
1 Citations
765 Views
22 Pages

Bandgap Engineering of CIGS: Active Control of Composition Gradient

  • Zhihao Wu,
  • Shengye Tao,
  • Mengyao Jia,
  • Junsu Han,
  • Jihui Zhou,
  • Maria Baranova,
  • Qianming Gong,
  • Daming Zhuang and
  • Ming Zhao

21 November 2025

The tunable bandgap of CIGSe has established bandgap engineering as a pivotal research direction for advancing the efficiency frontiers of solar cells. In particular, the proposal of the V-shaped bandgap gradient has motivated extensive efforts to ac...

  • Feature Paper
  • Article
  • Open Access
32 Citations
5,349 Views
20 Pages

Band Gap Engineering of Newly Discovered ZnO/ZnS Polytypic Nanomaterials

  • Dejan Zagorac,
  • Jelena Zagorac,
  • Milan Pejić,
  • Branko Matović and
  • Johann Christian Schön

We report on a new class of ZnO/ZnS nanomaterials based on the wurtzite/sphalerite architecture with improved electronic properties. Semiconducting properties of pristine ZnO and ZnS compounds and mixed ZnO1−xSx nanomaterials have been investig...

  • Review
  • Open Access
19 Citations
9,549 Views
27 Pages

6 December 2024

The advent of two-dimensional (2D) materials and their capacity to form van der Waals (vdW) heterostructures has revolutionized numerous scientific fields, including electronics, optoelectronics, and energy storage. This paper presents a comprehensiv...

  • Article
  • Open Access
1 Citations
2,559 Views
10 Pages

11 May 2023

Heterostructures based on layered materials are considered next-generation photocatalysts due to their unique mechanical, physical, and chemical properties. In this work, we conducted a systematic first-principles study on the structure, stability, a...

  • Article
  • Open Access
18 Citations
2,358 Views
14 Pages

2 April 2022

The manipulation of composition and pressure, which affect the structure and, as a result, lead to new desired properties, is particularly significant for optimizing device performance. By considering the importance of pressure treatment, this study...

  • Article
  • Open Access
13 Citations
3,747 Views
17 Pages

26 November 2021

Band gap engineering of atomically thin two-dimensional (2D) materials has attracted a huge amount of interest as a key aspect to the application of these materials in nanooptoelectronics and nanophotonics. Low-loss electron energy loss spectroscopy...

  • Feature Paper
  • Article
  • Open Access
6 Citations
3,396 Views
28 Pages

Band-Gap Engineering of Layered Perovskites by Cu Spacer Insertion as Photocatalysts for Depollution Reaction

  • Monica Raciulete,
  • Crina Anastasescu,
  • Florica Papa,
  • Irina Atkinson,
  • Corina Bradu,
  • Catalin Negrila,
  • Diana-Ioana Eftemie,
  • Daniela C. Culita,
  • Akane Miyazaki and
  • Ioan Balint
  • + 5 authors

27 November 2022

A multi-step ion-exchange methodology was developed for the fabrication of Cu(LaTa2O7)2 lamellar architectures capable of wastewater depollution. The (001) diffraction line of RbLaTa2O7 depended on the guest species hosted by the starting material. S...

  • Article
  • Open Access
1 Citations
2,594 Views
14 Pages

The bandgap-engineered tunneling oxide (BE-TOX) structure has been proposed to address the incompatibility between erase efficiency and retention performance in NAND flash memory. Previous studies have primarily focused on single flash memory cells,...

  • Communication
  • Open Access
1 Citations
2,327 Views
7 Pages

In this study, the channel potential of inhibited strings in 3D NAND flash memory using a bandgap-engineered tunneling oxide (BE-TOX) structure is analyzed. The equivalent oxide thickness (EOT) of the structure using BE-TOX was designed to be the sam...

  • Article
  • Open Access
16 Citations
3,837 Views
21 Pages

Spectroscopic Properties of Si-nc in SiOx Films Using HFCVD

  • Zaira Jocelyn Hernández Simón,
  • Jose Alberto Luna López,
  • Alvaro David Hernández de la Luz,
  • Sergio Alfonso Pérez García,
  • Alfredo Benítez Lara,
  • Godofredo García Salgado,
  • Jesus Carrillo López,
  • Gabriel Omar Mendoza Conde and
  • Hayde Patricia Martínez Hernández

20 July 2020

In the present work, non-stoichiometric silicon oxide films (SiOx) deposited using a hot filament chemical vapor deposition technique at short time and simple parameters of depositions are reported. This is motivated by the numerous potential applica...

  • Review
  • Open Access
34 Citations
11,321 Views
31 Pages

Hierarchical Assembly of Multifunctional Oxide-based Composite Nanostructures for Energy and Environmental Applications

  • Pu-Xian Gao,
  • Paresh Shimpi,
  • Haiyong Gao,
  • Caihong Liu,
  • Yanbing Guo,
  • Wenjie Cai,
  • Kuo-Ting Liao,
  • Gregory Wrobel,
  • Zhonghua Zhang and
  • Hui-Jan Lin
  • + 1 author

15 June 2012

Composite nanoarchitectures represent a class of nanostructured entities that integrates various dissimilar nanoscale building blocks including nanoparticles, nanowires, and nanofilms toward realizing multifunctional characteristics. A broad array of...

  • Article
  • Open Access
3 Citations
2,410 Views
12 Pages

Fe Doping in TiO2 via Anodic Dissolution of Iron: Synthesis, Characterization, and Electrophoretic Deposition on a Metal Substrate

  • Sara Chatrnoor,
  • Amirhossein Taghaddosi,
  • Sayed Ali Ahmad Alem,
  • Fatemeh Taati-Asil,
  • Babak Raissi,
  • Reza Riahifar and
  • Maziar Sahba Yaghmaee

13 June 2023

The tailored physical properties of TiO2 are of significant importance in various fields and, as such, numerous methods for modifying these properties have been introduced. In this study, we present a novel method for doping Fe into TiO2 via the anod...

  • Feature Paper
  • Article
  • Open Access
6 Citations
3,879 Views
9 Pages

16 February 2021

In recent years, the class of metal-organic framework (MOF) materials emerged. These materials’ unique properties can be ascribed to their structure, containing inorganic nodes connected with organic linkers. Due to their porosity and flexibility, MO...

  • Article
  • Open Access
11 Citations
5,126 Views
13 Pages

Structural, Morphological, Optical and Photocatalytic Properties of Y, N-Doped and Codoped TiO2 Thin Films

  • Zeineb Hamden,
  • David Conceição,
  • Sami Boufi,
  • Luís Filipe Vieira Ferreira and
  • Soraa Bouattour

31 May 2017

Pure TiO2, Y-N single-doped and codoped TiO2 powders and thin films deposited on glass beads were successfully prepared using dip-coating and sol-gel methods. The samples were analyzed using grazing angle X-ray diffraction (GXRD), Raman spectroscopy,...

  • Feature Paper
  • Review
  • Open Access
281 Citations
13,790 Views
22 Pages

26 November 2017

Thermally stimulated luminescence (TSL) is known as a technique used in radiation dosimetry and dating. However, since the luminescence is very sensitive to the defects in a solid, it can also be used in material research. In this review, it is shown...

  • Article
  • Open Access
9 Citations
2,190 Views
13 Pages

Band-Gap Engineering of High-Entropy Fluorite Metal Oxide Nanoparticles Facilitated by Pr3+ Incorporation by Gel Combustion Synthesis

  • Mariappan Anandkumar,
  • Kannan Pidugu Kesavan,
  • Shanmugavel Sudarsan,
  • Olga Vladimirovna Zaitseva,
  • Ahmad Ostovari Moghaddam,
  • Daria Valerevna Iarushina and
  • Evgeny Alekseevich Trofimov

6 February 2025

Tailoring the bandgap of a material is necessary for improving its optical properties. Here, the optical bandgap of high-entropy oxide Ce0.2Gd0.2Sm0.2Y0.2Zr0.2O2-δ (HEO) nanoparticles was modified using Pr3+. Various concentrations of Pr3+ (x =...

  • Article
  • Open Access
35 Citations
5,856 Views
17 Pages

27 March 2023

The exact control of material properties essential for solar applications has been made possible because of perovskites’ compositional engineering. However, tackling efficiency, stability, and toxicity at the same time is still a difficulty. Mi...

  • Article
  • Open Access
2 Citations
2,555 Views
17 Pages

Photonic Band Gap Engineering by Varying the Inverse Opal Wall Thickness

  • Dániel Attila Karajz,
  • Levente Halápi,
  • Tomasz Stefaniuk,
  • Bence Parditka,
  • Zoltán Erdélyi,
  • Klára Hernádi,
  • Csaba Cserháti and
  • Imre Miklós Szilágyi

3 December 2024

We demonstrate the band gap programming of inverse opals by fabrication of different wall thickness by atomic layer deposition (ALD). The opal templates were synthesized using polystyrene and carbon nanospheres by the vertical deposition method. The...

  • Review
  • Open Access
5 Citations
3,586 Views
48 Pages

ZnO-Based Photocatalysts: Synergistic Effects of Material Modifications and Machine Learning Optimization

  • Sanja J. Armaković,
  • Stevan Armaković,
  • Andrijana Bilić and
  • Maria M. Savanović

20 August 2025

ZnO-based photocatalysts have attracted significant attention for their potential use in advanced oxidation processes for environmental remediation. However, critical challenges, such as rapid charge carrier recombination and narrow light absorption,...

  • Review
  • Open Access
1,265 Views
29 Pages

Bismuth-Based Oxyfluorides as Emergent Photocatalysts: A Review

  • Thomas Erbland,
  • Sara Ibrahim,
  • Lucas Pelat,
  • Kevin Lemoine,
  • Angélique Bousquet and
  • Pierre Bonnet

17 September 2025

Bismuth-based oxyfluorides (BiOxF3−2x) have recently emerged as promising photocatalysts due to their unique electronic structures and tunable physicochemical properties. This review provides a comprehensive overview of these materials, focusin...

  • Article
  • Open Access
2,283 Views
13 Pages

Band Gap Engineering in Ultimately Thin Slabs of CdTe with Different Layer Stackings

  • Vladimir G. Kuznetsov,
  • Anton A. Gavrikov and
  • Alexander V. Kolobov

4 December 2023

Ultrathin solid slabs often have properties different from those of the bulk phase. This effect can be observed both in traditional three-dimensional materials and in van der Waals (vdW) solids in the few monolayer limit. In the present work, the ban...

  • Article
  • Open Access
18 Citations
3,600 Views
17 Pages

21 February 2023

Fabrication of Z-scheme heterojunction photocatalysts is an ideal strategy for solving environmental problems by providing inexhaustible solar energy. A direct Z-scheme anatase TiO2/rutile TiO2 heterojunction photocatalyst was prepared using a facile...

  • Article
  • Open Access
10 Citations
5,466 Views
16 Pages

15 January 2021

In this work, we have designed and simulated a graphene field effect transistor (GFET) with the purpose of developing a sensitive biosensor for methanethiol, a biomarker for bacterial infections. The surface of a graphene layer is functionalized by m...

  • Article
  • Open Access
903 Views
13 Pages

Optical Properties of GePb Alloy Realized by Ion Beam Technology

  • Shuyu Wen,
  • Yuan-Hao Zhu,
  • Oliver Steuer,
  • Mohd Saif Shaikh,
  • Slawomir Prucnal,
  • René Hübner,
  • Andreas Worbs,
  • Li He,
  • Manfred Helm and
  • Yonder Berencén
  • + 2 authors

13 May 2025

Incorporating lead (Pb) into the germanium (Ge) lattice emerges as a promising approach for bandgap engineering, enabling luminescence at longer wavelengths and paving the way for enhanced applications in short-wave infrared (SWIR) light sources and...

  • Review
  • Open Access
18 Citations
11,813 Views
20 Pages

Recent Progress of Wide Bandgap Perovskites towards Two-Terminal Perovskite/Silicon Tandem Solar Cells

  • Qianyu Chen,
  • Long Zhou,
  • Jiaojiao Zhang,
  • Dazheng Chen,
  • Weidong Zhu,
  • He Xi,
  • Jincheng Zhang,
  • Chunfu Zhang and
  • Yue Hao

16 January 2024

Perovskite/silicon tandem solar cells have garnered considerable interest due to their potential to surpass the Shockley–Queisser limit of single-junction Si solar cells. The rapidly advanced efficiencies of perovskite/silicon tandem solar cell...

  • Article
  • Open Access
2 Citations
4,387 Views
12 Pages

10 November 2017

Gold-nanoparticle (Au-NP) non-volatile memories (NVMs) with low-damage CF4 plasma treatment on the blocking oxide (BO) layer have been investigated to present the gate injection of the holes. These holes, injected from the Al gate with the positive g...

  • Article
  • Open Access
579 Views
15 Pages

Bandgap Engineering of Ga2O3 by MOCVD Through Alloying with Indium

  • Md Minhazul Islam,
  • A. Hernandez,
  • H. Appuhami,
  • A. Banerjee,
  • Blas Pedro Uberuaga and
  • F. A. Selim

12 January 2026

Ga2O3 and In2O3 are vital semiconductors with current and future electronic device applications. Here, we study the alloying of In2O3 and Ga2O3 (IGO) and the associated changes in structure, morphology, band gap, and electrical transport properties....

  • Article
  • Open Access
4 Citations
2,321 Views
10 Pages

27 September 2022

Pursuing efficient long-wavelength InGaN LED has been a troublesome issue to be solved, which forms interesting subjects for fundamental research, but finds also motivation in extensive applications. Here, we investigate the effect of TMIn (trimethyl...

  • Article
  • Open Access
608 Views
12 Pages

20 September 2025

Bacterial cellulose, a biopolymer synthesised by microorganisms, exhibits remarkable structural, optical, and electronic properties. This study utilised a range of photon- and electron-based techniques, including X-ray diffraction, proton nuclear mag...

  • Article
  • Open Access
4 Citations
2,827 Views
9 Pages

Stability and Bandgap Engineering of In1−xGaxSe Monolayer

  • Mattia Salomone,
  • Federico Raffone,
  • Michele Re Fiorentin,
  • Francesca Risplendi and
  • Giancarlo Cicero

1 February 2022

Bandgap engineering of semiconductor materials represents a crucial step for their employment in optoelectronics and photonics. It offers the opportunity to tailor their electronic and optical properties, increasing the degree of freedom in designing...

  • Review
  • Open Access
46 Citations
6,064 Views
50 Pages

Thin-film solar cells (TFSCs) represent a promising frontier in renewable energy technologies due to their potential for cost reduction, material efficiency, and adaptability. This literature review examines the key materials and advancements that ma...

  • Review
  • Open Access
3 Citations
4,302 Views
29 Pages

Wide-Bandgap Subcells for All-Perovskite Tandem Solar Cells: Recent Advances, Challenges, and Future Perspectives

  • Qiman Li,
  • Wenming Chai,
  • Xin Luo,
  • Weidong Zhu,
  • Dazheng Chen,
  • Long Zhou,
  • He Xi,
  • Hang Dong,
  • Chunfu Zhang and
  • Yue Hao

8 May 2025

All-perovskite tandem solar cells (APTSCs) offer a promising pathway to surpassing the efficiency limits of single-junction photovoltaics. The wide-bandgap (WBG) subcell, serving as the top absorber, plays a critical role in optimizing light harvesti...

  • Article
  • Open Access
5 Citations
1,589 Views
20 Pages

The current study represents a machine-learning (ML)-assisted reverse polymer engineering for the rational design of high-performance benzothiophene (BT) benzodithiophene (BDT) polymers for photodetector applications. By integrating their 5617 units...

  • Review
  • Open Access
1 Citations
3,354 Views
21 Pages

Data-Driven Perovskite Design via High-Throughput Simulation and Machine Learning

  • Yidi Wang,
  • Dan Sun,
  • Bei Zhao,
  • Tianyu Zhu,
  • Chengcheng Liu,
  • Zixuan Xu,
  • Tianhang Zhou and
  • Chunming Xu

24 September 2025

Perovskites (ABX3) exhibit remarkable potential in optoelectronic conversion, catalysis, and diverse energy-related fields. However, the tunability of A, B, and X-site compositions renders conventional screening methods labor-intensive and inefficien...

  • Article
  • Open Access
18 Citations
3,262 Views
15 Pages

Band Gap Engineering in Quadruple-Layered Sillén–Aurivillius Perovskite Oxychlorides Bi7Fe2Ti2O17X (X = Cl, Br, I) for Enhanced Photocatalytic Performance

  • Jikun Chen,
  • Yan Gu,
  • Shishi Xu,
  • Yunxiang Zhang,
  • Zhe Zhang,
  • Lin Shi,
  • Zhichao Mu,
  • Chenliang Zhou,
  • Jiali Zhang and
  • Qinfang Zhang

14 April 2023

Developing efficient photocatalyst for the photoreduction of CO2 and degradation of organic pollutants is an effective alternative to address increasingly serious energy problems and environmental pollution. Herein, the isostructural Sillén&nd...

  • Article
  • Open Access
812 Views
26 Pages

17 September 2025

The effects of boundary conditions on the vibration characteristics of a sandwich plate with viscoelastic periodic cores were examined. The tangential, vertical, transverse, and torsional springs were utilized to restrict the sandwich plate’s e...

  • Article
  • Open Access
1 Citations
1,048 Views
21 Pages

Photocatalytic Evaluation of Fe2O3–TiO2 Nanocomposites: Influence of TiO2 Content on Their Structure and Activity

  • Israel Águila-Martínez,
  • Pablo Eduardo Cardoso-Avila,
  • Isaac Zarazúa,
  • Héctor Pérez Ladrón de Guevara,
  • José Antonio Pérez-Tavares,
  • Efrén González-Aguiñaga and
  • Rita Patakfalvi

5 November 2025

In this study, Fe2O3–TiO2 nanocomposites with different TiO2 contents (1–50%) were synthesized via a solvothermal method using pre-formed α-Fe2O3 nanoparticles as cores. We systematically evaluated the influence of TiO2 loading on t...

  • Communication
  • Open Access
8 Citations
3,426 Views
9 Pages

Design of a Narrow Band Filter Based on a Photonic Crystal Cavity for CO2 Sensing Application

  • Reyhaneh Jannesari,
  • Thomas Grille,
  • Gerald Stocker and
  • Bernhard Jakoby

22 May 2023

This paper investigates the use of a miniaturized filter based on a triangular lattice of holes in a photonic crystal (PhC) slab. The plane wave expansion method (PWE) and finite-difference time-domain (FDTD) techniques were utilized to analyze the d...

  • Feature Paper
  • Review
  • Open Access
133 Citations
20,877 Views
32 Pages

Insights into the TiO2-Based Photocatalytic Systems and Their Mechanisms

  • Mohan Sakar,
  • Ravikumar Mithun Prakash and
  • Trong-On Do

9 August 2019

Photocatalysis is a multifunctional phenomenon that can be employed for energy applications such as H2 production, CO2 reduction into fuels, and environmental applications such as pollutant degradations, antibacterial disinfection, etc. In this direc...

  • Article
  • Open Access
531 Views
17 Pages

Influence of Multilayer Architecture on the Structural, Optical, and Photoluminescence Properties of ZnO Thin Films

  • Neha N. Malpure,
  • Sumit R. Patil,
  • Jaydeep V. Sali,
  • Diego Pugliese,
  • Rakesh A. Afre and
  • Rajendra S. Khadayate

9 December 2025

The present work systematically investigates the impact of multilayer architecture—specifically 5, 10, and 15 layers—on the structural, morphological, optical, and dielectric properties of zinc oxide (ZnO) thin films, aiming to tailor the...

  • Article
  • Open Access
86 Views
15 Pages

α-Fe2−4xZ3xO3 (Z = Ce, Ru) nanoparticles were synthesized via a conventional solid-state reaction route. X-Ray diffraction analysis confirmed that all compositions crystallize in the single-phase hexagonal hematite (α-Fe2O3) structu...

  • Article
  • Open Access
363 Views
22 Pages

21 January 2026

The calculation of the limiting efficiency and structural optimization of solar cells based on the detailed balance principle is systematically investigated in this study. Through modeling and numerical simulations of various cell architectures, the...

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