Special Issues

Crystals publishes Special Issues to create collections of papers on specific topics, with the aim of building a community of authors and readers to discuss the latest research and develop new ideas and research directions. Special Issues are led by Guest Editors, who are experts on the topic and all Special Issue submissions follow MDPI's standard editorial process. The journal’s Editor-in-Chief and/or designated Editorial Board Member will oversee Guest Editor appointments and Special Issue proposals, checking their content for relevance and ensuring the suitability of the material for the journal. The papers published in a Special Issue will be collected and displayed on a dedicated page of the journal’s website. Further information on MDPI's Special Issue policies and Guest Editor responsibilities can be found here. For any inquiries related to a Special Issue, please contact the Editorial Office.

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Advanced Technologies in Graphene-Based Materials (2nd Edition) submission deadline 15 Oct 2025 | 1 articles | Viewed by 1706
Keywords: graphene and its related materials; reduced graphene oxide; carbon nanotubes; nanocomposites; synthesis and preparation; functionalization; surface characterization; coatings; (bio)sensors; energy storage devices
(This special issue belongs to the Section Hybrid and Composite Crystalline Materials)
Rare Earth-Based Crystalline Materials: Synthesis, Characterization and Applications
edited by Fuqiang Ren and Louwen Zhang
submission deadline 15 Oct 2025 | Viewed by 236
Keywords: synthesis; rare earths; characterization; nanocrystals; luminescent properties; bioimaging; optoelectronics
(This special issue belongs to the Section Inorganic Crystalline Materials)
Crystal Growth and Characterization of Intermetallic Compounds
edited by Rubén Mendoza-Cruz
submission deadline 15 Oct 2025 | Viewed by 156
Keywords: intermetallics; nanoalloys; compounds; structure; ordered phase
(This special issue belongs to the Section Crystalline Metals and Alloys)
Research on Perovskite Materials and Perovskite Solar Cells submission deadline 20 Oct 2025 | Viewed by 209 | Submission Open
Keywords: perovskite solar cells; perovskite thin films; stability and degradation mechanisms; solar cell modeling; optoelectronic properties; tandem solar cells
Widespread Application of Advanced Nanomaterials
edited by , Dan Xue and
submission deadline 20 Oct 2025 | Viewed by 207 | Submission Open
Keywords: advanced nanomaterials; functional nanomaterials; nanocomposites; energy storage and conversion; environmental nanotechnology; smart nanomaterials; stimuli-responsive systems; photocatalysis and sensors; nano-enabled electronics and photonics; sustainable synthesis; ai-assisted materials design; nanoscale characterization; structure– property relationships; multidisciplinary applications
(This special issue belongs to the Section Hybrid and Composite Crystalline Materials)
Advanced Materials for CO2 Reduction
edited by Dalei Sun
submission deadline 20 Oct 2025 | Viewed by 178 | Submission Open
Keywords: heterogenous catalysts; CO2 capture and utilization; CO2 reduction
(This special issue belongs to the Section Materials for Energy Applications)
Layered Materials and Their Applications
edited by and Cristina Carbone
submission deadline 23 Oct 2025 | 1 articles | Viewed by 664 | Submission Open
Keywords: layered materials; LDH; anionic clays; composites; structure– properties relationships
(This special issue belongs to the Section Inorganic Crystalline Materials)
Emerging Perovskite Materials and Applications submission deadline 25 Oct 2025 | 2 articles | Viewed by 1971 | Submission Open
Keywords: perovskite materials; fluorescence; efficiency; solar cells; ion doping; pressure effects; phase transition; optical properties; vibrational spectroscopy; electronic state calculations; theoretical models
(This special issue belongs to the Section Inorganic Crystalline Materials)
Research Progress of Laser Crystals
edited by Huili Zhang and
submission deadline 25 Oct 2025 | 1 articles | Viewed by 702 | Submission Open
Keywords: laser crystal; crystal growth; crystal structure; spectral properties; laser performance
Structure, Properties, and Applications of Nanomaterials and Thin Films
edited by
submission deadline 25 Oct 2025 | Viewed by 143 | Submission Open
Keywords: nanomaterials; thin films; interface phenomena; nanostructure-property relationships; synthesis techniques; characterization methods; electronic and optical Properties; energy storage applications; biomedical nanotechnology; device integration
Welding and Joining of Metallic Materials: Microstructure and Mechanical Properties, 2nd Edition
edited by and Reza Beygi
submission deadline 31 Oct 2025 | 6 articles | Viewed by 8643 | Submission Open
Keywords: friction stir welding; laser welding; electron beam welding; hybrid welding; adhesive bonding; welding-based additive manufacturing (WAAM); gas metal arc welding (GMAW); gas tungsten arc welding (GTAW); shielded metal arc welding (SMAW); welding parameters and optimization; microstructure; post-weld heat treatment; grain structure; phase transformations; precipitates; defects; residual stresses; mechanical properties; non-destructive testing; fatigue analysis; fracture mechanics; weld integrity; reliability assessments
(This special issue belongs to the Section Hybrid and Composite Crystalline Materials)
Recent Achievements in Oxide Transistors
edited by Penghui He and
submission deadline 31 Oct 2025 | Viewed by 164 | Submission Open
Keywords: novel oxide materials; high mobility and robust stability; advanced fabrication techniques; device innovation and physics; emergent phenomena or applications
(This special issue belongs to the Section Inorganic Crystalline Materials)
The Development of Advanced Materials for Electrochemical Energy Conversion and Storage
edited by Zhipeng Yu and Hong Yin
submission deadline 1 Nov 2025 | 3 articles | Viewed by 10087 | Submission Open
Keywords: advanced materials; electrochemical energy conversion; electrochemical energy storage; water electrolysis; fuel cells; batteries; supercapacitors; nanostructured materials; composite materials; novel electrolytes; energy efficiency
(This special issue belongs to the Section Materials for Energy Applications)
Microstructure and Properties of Metals and Alloys
edited by Zhongquan Zhang, and Ze Chai
submission deadline 10 Nov 2025 | 8 articles | Viewed by 8544 | Submission Open
Keywords: metals/alloys; bulk materials; coatings; films; microstructure; phase; grain; interface; lattice; dislocation; vacancy; diffusion; mechanical property; strengthening; deformation; strain; electrical property; anti-corrosive property; magnetic property
(This special issue belongs to the Section Crystalline Metals and Alloys)
Research and Applications of Acoustic Metamaterials
edited by Qiujiao Du and
submission deadline 10 Nov 2025 | 4 articles | Viewed by 6012 | Submission Open
Keywords: acoustic metamaterial; seismic metamaterial; metasurface; noise and vibration isolation; topology; machine learning; nonlinearity; intelligent metamaterial; bound state in the continuum; cloaking
(This special issue belongs to the Section Inorganic Crystalline Materials)
Sustainable Heterogeneous Catalyst: From Structure to Application
edited by and
submission deadline 10 Nov 2025 | 1 articles | Viewed by 3846 | Submission Open
Keywords: heterogeneous catalyst; electrocatalysts; photocatalysts; thermal catalysts; green chemistry; structural-activity studies; biofuels platform molecules energy CO2 conversion
(This special issue belongs to the Section Materials for Energy Applications)
New Insights into Coating Materials: From Fundamentals to Material Performance
edited by Haibin Zhang
submission deadline 10 Nov 2025 | 2 articles | Viewed by 3084 | Submission Open
Keywords: coatings; coating materials; ceramic coatings; oxidation resistance; oxidation-protective coating; anti-corrosion coatings; metal surface properties; metal surface engineering; metal damage protection; surface modification; surface technology; wear-resistant; corrosion protection coating; composite coating; microstructure and performance; hardness; mechanical properties
(This special issue belongs to the Section Inorganic Crystalline Materials)
Recent Advances in Photocatalysts Materials
edited by Kristina Mojsilovic and
submission deadline 10 Nov 2025 | 2 articles | Viewed by 2063 | Submission Open
Keywords: photocatalysis; heterogeneous photocatalysis; hybrid materials; hydrogen evolution; titanium; aluminum; magnesium; scanning electron microscopy; X-ray diffraction; transport properties; UV lamp; solar spectrum; LDHs; MOFs; zeolites
(This special issue belongs to the Section Materials for Energy Applications)
Surface and Interface Engineering of Metal Oxides: From Atomic-Scale Design to Applications in Catalysis, Energy and Electronics
edited by Xuefeng Chu, Chao Wang and
submission deadline 10 Nov 2025 | Viewed by 151 | Submission Open
Keywords: metal oxides; surface and interface; atomic-scale synthesis; interfacial catalysis; advanced characterization; energy applications; structure-property relationships; design and engineering; computational material design
Advanced Surface Engineering Materials: Characterization and Properties (2nd Edition) submission deadline 15 Nov 2025 | 3 articles | Viewed by 4087 | Submission Open
Keywords: surface characterization; ultra-thin films; surface treatments; functionalized surface; SPM techniques
(This special issue belongs to the Section Inorganic Crystalline Materials)
Advances in New Multifunctional Hard Materials
edited by Tomas Soria-Biurrun, María de Nicolás Morillas, and
submission deadline 15 Nov 2025 | 2 articles | Viewed by 3563 | Submission Open
Keywords: alternative metallic binders; alternative ceramic phases; additive manufacturing; conventional proccesing; microstructural characterization; mechanical properties
(This special issue belongs to the Section Crystalline Metals and Alloys)
Innovations in Magnetic Composites: Synthesis to Application
edited by Izabella Crăciunescu
submission deadline 15 Nov 2025 | 3 articles | Viewed by 1748 | Submission Open
Keywords: magnetic nanomaterials; composites; hybrid nanostructures; magnetoresponsive systems; applications
Innovative Insights into Deformation and Failure of Metallic Alloys
edited by and Vasilis Karamitros
submission deadline 15 Nov 2025 | 1 articles | Viewed by 1486 | Submission Open
Keywords: high-entropy alloys (HEAs); additively manufactured alloys; microstructural characteristics; predictive modeling; extreme loading conditions
(This special issue belongs to the Section Crystalline Metals and Alloys)
Multifunctional Metal–Organic Frameworks (MOFs) at the Interface of Chemistry and Materials Science
edited by and Yanshu Shi
submission deadline 15 Nov 2025 | Viewed by 140 | Submission Open
Keywords: metal– organic framework; material discovery; adsorption; catalysis; crystallography; nanomaterial; sensing
(This special issue belongs to the Section Macromolecular Crystals)
Cutting-Edge Research in Plastic-Flexible Thermoelectric Materials
edited by Dongwang Yang
submission deadline 15 Nov 2025 | Viewed by 77 | Submission Open
Keywords: plastic-flexible thermoelectric materials; advanced fabrication; crystal architecture; microstructural engineering; electron– phonon– ion decoupling; machine learning
(This special issue belongs to the Section Materials for Energy Applications)
Recent Advances in III-Nitride Semiconductors and Correlated Wide Bandgap Semiconductors, 2nd Edition
edited by and
submission deadline 20 Nov 2025 | 9 articles | Viewed by 13123 | Submission Open
Keywords: nitrides; GaN; Ga2O3; NiO; diamond; AlScN; heterostructures; epitaxy; electro-optics devices; micro-electronics devices; power devices; integrated circuits and modules; photonic crystal enhanced light-matter interaction; photonic crystal and plasmonics
(This special issue belongs to the Section Materials for Energy Applications)
Advances in Nanocomposites: Structure, Properties and Applications
edited by , José Luis Casas-Espínola, Yazmin Mariela Hernández-Rodríguez and
submission deadline 20 Nov 2025 | 5 articles | Viewed by 6864 | Submission Open
Keywords: electron microscopy; nanostructured materials; nanocrystals; mechanical properties; functionalization; phase transition; applied nanomaterials; advanced characterization
(This special issue belongs to the Section Hybrid and Composite Crystalline Materials)
Structural Studies in Drug Discovery and Development: From the Lead to the Pharmaceutical Form, 2nd Edition submission deadline 20 Nov 2025 | 3 articles | Viewed by 3949 | Submission Open
Keywords: single-crystal X-ray diffraction; structural analysis; spectroscopic methods; spectrometric methods; pharmaceutical compounds; biologically active molecules; organic molecules; metal complexes; synthetic intermediates; atropisomers; absolute configuration; asymmetric synthesis; catalysis; mechanistic investigations; polymorphism; co-crystals; solubility
(This special issue belongs to the Section Crystal Engineering)
Single-Crystalline Composite Materials (Second Edition) submission deadline 20 Nov 2025 | 1 articles | Viewed by 2232 | Submission Open
Keywords: single crystals; composites; crystallization; structural defects; testing methods
(This special issue belongs to the Section Hybrid and Composite Crystalline Materials)
New Horizons in Metal–Organic Frameworks: Fundamentals, Characterization, and Molecular Modeling submission deadline 20 Nov 2025 | Viewed by 307 | Submission Open
Keywords: metal– ligand interactions; tunable properties; advanced materials; metal– organic frameworks; molecular modeling
(This special issue belongs to the Section Organic Crystalline Materials)
Research on the Preparation and Performance of Photocatalytic Materials
edited by Baoying Dai
submission deadline 20 Nov 2025 | Viewed by 214 | Submission Open
Keywords: photocatalytic technology and its application; photocatalytic hydrogen evolution; photocatalytic degradation; photocatalytic disinfection; photocatalytic therapy; photocatalytic carbon dioxide reduction; promoted carrier separation; controllable preparation; high reactive site exposure; increased solar light utilization efficiency
(This special issue belongs to the Section Materials for Energy Applications)
Crystaline TiO2 Nanotubes: From Production, Modification, to Innovative Applications
edited by
submission deadline 20 Nov 2025 | Viewed by 183 | Submission Open
Keywords: crystallization of TiO2 nanotubes; TiO2 nanotubes biomedical applications; TiO2 nanotubes in dye-sensitized solar cells; TiO2 nanotubes drug delivery systems; TiO2 nanotubes antibacterial agents; TiO2 nanotubes self-cleaning substrates
Advanced Alloys for Aggressive Environments: Challenges and Breakthroughs
edited by , Raquel Lopez and
submission deadline 25 Nov 2025 | 1 articles | Viewed by 1403 | Submission Open
Keywords: metals; alloys; high-entropy alloys; metallic coating; additively manufactured alloys; microstructure; wear resistance; chemical stability; thermal stability; environmental durability; corrosion resistance; corrosion fatigue; high-temperature oxidation; mechanical properties; hardness testing; practical applications
(This special issue belongs to the Section Crystalline Metals and Alloys)
Optical Characterization of Functional Materials submission deadline 25 Nov 2025 | 1 articles | Viewed by 550 | Submission Open
Keywords: photonic materials; optical spectroscopy; Raman; ellipsometry; graphene; TiO2; terahertz spectroscopy; crystal growth; thin films; functional materials
(This special issue belongs to the Section Materials for Energy Applications)
Materials and Their Performance Characterization in Extreme Environments
edited by Ruzhuan Wang, Yi He and
submission deadline 25 Nov 2025 | Viewed by 222 | Submission Open
Keywords: failure mechanisms; multi-scale modeling; extreme environments; microstructure and macroscopic properties; design of high-performance advanced materials; advanced characterization techniques (including experimental and theoretical characterization)
(This special issue belongs to the Section Hybrid and Composite Crystalline Materials)
Solidification Processing of Metal Alloys Under External Fields
edited by , Yanchun Zhu, Jianfei Zhang, and
submission deadline 30 Nov 2025 | 1 articles | Viewed by 2307 | Submission Open
Keywords: solidification; external fields; material properties; microstructures; crystals; numerical simulation; alloys; microstructure characterization
(This special issue belongs to the Section Crystalline Metals and Alloys)
Advances in High-Performance Alloys
edited by Huihui Zhi, Cheng Wen and
submission deadline 30 Nov 2025 | 2 articles | Viewed by 1220 | Submission Open
Keywords: high-entropy alloys; steels and iron alloys; magnesium alloys; aluminum alloys; copper alloys; titanium alloys; mechanical properties; corrosion resistance properties; hydrogen embrittlement; characterization; machine learning
(This special issue belongs to the Section Crystalline Metals and Alloys)
Research on Electrolytes and Energy Storage Materials (2nd Edition)
edited by and Mengjie Chen
submission deadline 30 Nov 2025 | Viewed by 125 | Submission Open
Keywords: electrolytes; energy storage materials; batteries; supercapacitors; lithium-ion batteries; solid-state electrolytes; charge– discharge mechanisms; green technology; sustainable materials; next-generation energy storage
(This special issue belongs to the Section Materials for Energy Applications)
Research on Energy Storage Materials
edited by Feng Yu
submission deadline 8 Dec 2025 | Viewed by 175 | Submission Open
Keywords: aqueous batteries; supercapacitor; electrochemical energy storage; energy storage materials
Reviews of Crystal Engineering submission deadline 10 Dec 2025 | 6 articles | Viewed by 26351 | Submission Open
Keywords: inter- and intramolecular interactions; σ -hole and π -hole bonds; molecular crystals; cooperativity effects; structure motifs; molecular geometry; the correlation of parameters describing structures; substituent effects; structures of aromatic compounds; charge density analysis; comparison of various interactions
(This special issue belongs to the Section Crystal Engineering)
Development of Light Alloys and Their Applications
edited by , Gulshan Kumar and
submission deadline 10 Dec 2025 | 9 articles | Viewed by 13521 | Submission Open
Keywords: light alloys; aluminium alloys; magnesium alloys; titanium alloys; deformation behaviour; alloy and development; metallurgy; material characterization
(This special issue belongs to the Section Crystalline Metals and Alloys)
Research Progress of Photoluminescent Materials
edited by Lei Han
submission deadline 10 Dec 2025 | 4 articles | Viewed by 6294 | Submission Open
Keywords: photoluminescence; luminescent materials; optoelectronic devices; advanced photonic applications; optoelectronics and photonics
(This special issue belongs to the Section Inorganic Crystalline Materials)
Growth, Structural Identification, and Characterization of Semiconductor Alloys and Low-Dimensional Heterostructures
edited by
submission deadline 10 Dec 2025 | 2 articles | Viewed by 1804 | Submission Open
Keywords: epitaxial growth including (MBE; CVD; MOCVD; etc.); group-IV elemental semiconductors and alloys; III-V; III-N; II-VI; and IV-IV compound semiconductors and alloys; designing low-dimensional heterostructures (MQWs; SLs; etc.) for devices; IR; Raman scattering; photoluminescence; spectroscopic ellipsometry; characterization techniques; etc.; simulations of structural; electronic; vibrational; and thermal transport in MQWs and SLs
(This special issue belongs to the Section Crystalline Metals and Alloys)
Thermotropic Liquid Crystals as Novel Functional Materials submission deadline 10 Dec 2025 | 1 articles | Viewed by 540 | Submission Open
Keywords: synthesis; ferroelectrics; antiferroelectrics; structure-property relationship; investigation techniques; applications; computational modelling
(This special issue belongs to the Section Liquid Crystals)
Recent Advances in Graphene and Other Two-Dimensional Materials submission deadline 15 Dec 2025 | 7 articles | Viewed by 18517 | Submission Open
Keywords: two-dimensional materials; graphene; graphene oxide; transition metal dichalcogenides (TMDCs); graphene-based composites; 2D advanced devices and applications; functionalization of graphene; characterization techniques: electrical; electronic; optical; and mechanical properties
(This special issue belongs to the Section Inorganic Crystalline Materials)
Electronic Phenomena of Transition Metal Oxides Volume II
edited by Krzysztof Szot and
submission deadline 15 Dec 2025 | 5 articles | Viewed by 16503 | Submission Open
Keywords: metal– insulator transitions and superconductivity; atomistic processes at surfaces; interfaces; and extended defects; electronic structure and lattice dynamics; redox reactions and oxygen transport; segregation and phase transformations; multiferroic properties; machine learning for transition metal oxides design and discovery
(This special issue belongs to the Section Inorganic Crystalline Materials)
Corrosion Phenomena in Metals
edited by , , Mohammad Umar Farooq Khan and Ulises Martin Diaz
submission deadline 15 Dec 2025 | 8 articles | Viewed by 15084 | Submission Open
Keywords: stress corrosion cracking; environment-assisted cracking; localized corrosion; corrosion inhibitor; high-entropy alloys; additively manufactured alloys; transmission electron microscopy; potentiodynamic polarization test; high-temperature oxidation; nanocrystalline alloys; electrochemical impedance spectroscopy; secondary phases; metallic coating; immersion test; failure initiation and propagation mechanism; corrosion mitigation; semiconductive properties; passive film; modeling; service lifetime prediction
(This special issue belongs to the Section Crystalline Metals and Alloys)
Design, Development and Processing of Aluminium Alloys and Their Composite Materials
edited by Peng Tang, , Kang Wang and Xingzhi Pang
submission deadline 15 Dec 2025 | 11 articles | Viewed by 12547 | Submission Open
Keywords: aluminium matrix composite materials; composition; solidification; advanced characterization; phase composition– property correlation; recycled aluminium; green low-carbon aluminium alloy system research and development
(This special issue belongs to the Section Crystalline Metals and Alloys)
Crystal Plasticity (4th Edition)
edited by , Yub Raj Paudel and Hongjoo Rhee
submission deadline 15 Dec 2025 | 3 articles | Viewed by 2569 | Submission Open
Keywords: plasticity; computational methods; machine learning; texture evolution; microstructural mechanisms; thermomechanical processing; advanced manufacturing and metamaterials; process– structure– property relationships; metals; alloys; and intermetallics
(This special issue belongs to the Section Crystalline Metals and Alloys)
Recent Advances in Scintillator Materials
edited by
submission deadline 15 Dec 2025 | 1 articles | Viewed by 852 | Submission Open
Keywords: scintillators; crystals; films; ceramics; nanopowders; melt growth; liquid-phase epitaxy; and solid-state reactions; luminescence; energy transfer processes; defects; dopants
(This special issue belongs to the Section Inorganic Crystalline Materials)
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