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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Advances in Functional Inorganic Materials Prepared by Wet Chemical Methods (Third Edition) submission deadline 20 Jul 2025 | 4 articles | Viewed by 6697 | Submission Open
Keywords: multifunctional materials; magnetic materials; ferroelectric materials; piezoelectric materials; optical materials; processing routes; ceramics
(This special issue belongs to the Section Inorganic Crystalline Materials)
Nanomaterials for Environmental and Solar Energy Applications
edited by Sofia Stefa and
submission deadline 20 Jul 2025 | 2 articles | Viewed by 3680 | Submission Open
Keywords: nanomaterial synthesis; physicochemical properties; band gap energy tuning; solar energy; environmental remediation; energy conversion; photocatalysis; thermochromic coatings; solar cells; batteries
(This special issue belongs to the Section Materials for Energy Applications)
Advanced Research of Silicon Photonics and Optoelectronics Devices
edited by Nicola Peserico and Martin Thomaschewski
submission deadline 20 Jul 2025 | 1 articles | Viewed by 2686 | Submission Open
Keywords: silicon photonics; optoelectronic devices; photonic integrated circuits; interconnect; optical computing; free-space communications; photonic integration; advanced materials for photonics
(This special issue belongs to the Section Materials for Energy Applications)
Research and Application of Photoelectrocatalytic Materials
edited by Yanming Fu, and Zili Ma
submission deadline 20 Jul 2025 | 2 articles | Viewed by 2462 | Submission Open
Keywords: photoelectrocatalytic; photoelectrode materials; solar energy storage; high-value-added products; structure modulations; surface science
(This special issue belongs to the Section Materials for Energy Applications)
New Trends in Materials for Permanent Magnets submission deadline 20 Jul 2025 | 1 articles | Viewed by 2012 | Submission Open
Keywords: permanent magnet; magnetic materials; magnetic properties; maximum energy product; rare earth; nanocomposite; powders; melt-spun ribbons; recycling
(This special issue belongs to the Section Inorganic Crystalline Materials)
Synthesis and Catalytic Performance of Transition Metal Catalysts
edited by and
submission deadline 20 Jul 2025 | 2 articles | Viewed by 2010 | Submission Open
Keywords: transition metal catalysts; metal– organic frameworks; metal oxide; electrocatalysis; doped composites; catalytic performance
(This special issue belongs to the Section Materials for Energy Applications)
Emerging Topics of High-Performance Alloys (2nd Edition)
edited by , , and Chau-Yi Tsai
submission deadline 20 Jul 2025 | 2 articles | Viewed by 1889 | Submission Open
Keywords: smart materials; high-performance alloys; shape memory alloys; high entropy alloys; high-strength aluminum alloys; mechanical property; microstructure characterization
(This special issue belongs to the Section Crystalline Metals and Alloys)
Analysis of Halogen and Other σ-Hole Bonds in Crystals (2nd Edition)
edited by
submission deadline 20 Jul 2025 | 1 articles | Viewed by 1115 | Submission Open
Keywords: halogen bonding; sigma-hole bonding; electrostatic potentials; nature of noncovalent interactions
(This special issue belongs to the Section Crystal Engineering)
New Insights into Photonic Crystal Fibers: From Fundamentals to Materials Performance submission deadline 20 Jul 2025 | Viewed by 372 | Submission Open
Keywords: photonic crystal fibers; microstructured optical fibers; the design and fabrication of photonic crystal fibers; post processing of photonic crystal fibers; optical communication; optical fiber sensors; optical fiber devices; optical fiber interferometers; nonlinear phenomena in optical fibers
(This special issue belongs to the Section Inorganic Crystalline Materials)
Metal Oxide Nanocomposites and Thin Films: Fabrication, Properties, and Applications submission deadline 20 Jul 2025 | Viewed by 301 | Submission Open
Keywords: metal oxide nanocomposites; metal oxide thin films; nanostructures; solution-based processes; sustainable materials; device physics; flexible electronics transparent electronics
Materials Dedicated to Perovskite Optoelectronic Functional Materials and Devices
edited by , Hengwei Qiu and Qixuan Zhong
submission deadline 20 Jul 2025 | Viewed by 173 | Submission Open
Keywords: LEDs; solar cells; nanocrystals; perovskite material; II-IV and III-V compound; advanced characterizations
(This special issue belongs to the Section Inorganic Crystalline Materials)
Properties and Defects of Silicon Carbide
edited by Yingxin Cui and
submission deadline 20 Jul 2025 | Viewed by 163 | Submission Open
Keywords: silicon carbide; electrical properties; doping; thermal conductivity; coefficient of thermal expansion; defects; SiC device
(This special issue belongs to the Section Inorganic Crystalline Materials)
Design and Energy Conversion of Functional Electrode Materials for Multivalent Ion Batteries
edited by Shunyu Yao
submission deadline 20 Jul 2025 | Viewed by 107 | Submission Open
Keywords: supercapacitors; electrocatalysis; energy density; ion batteries; cation intercalation
(This special issue belongs to the Section Materials for Energy Applications)
Surface Modification Treatments of Metallic Materials (2nd Edition)
edited by , Zongwei Ren and
submission deadline 22 Jul 2025 | 1 articles | Viewed by 477 | Submission Open
Keywords: surface modification; surface integrity; microstructure; residual stress; surface morphology; microhardness; metallic materials; mechanical property; fatigue; high-performance manufacturing
(This special issue belongs to the Section Crystalline Metals and Alloys)
II-VI and III-V Semiconductors for Optoelectronic Devices
edited by and Ziyuan Li
submission deadline 30 Jul 2025 | 4 articles | Viewed by 3112 | Submission Open
Keywords: II-VI semiconductors; III-V semiconductors; solid-state physics; optics; optoelectronics; lasers; detectors; photovoltaic solar cells; ultrafast carrier dynamics
(This special issue belongs to the Section Materials for Energy Applications)
Growth and Properties of Novel Scintillator Crystals submission deadline 30 Jul 2025 | 1 articles | Viewed by 778 | Submission Open
Keywords: novel scintillator crystals; halide scintillator crystals; eutectic scintillator crystals; nanoparticle scintillator crystals; shape-controlled scintillator crystals; novel and modified growth method
(This special issue belongs to the Section Inorganic Crystalline Materials)
Laser Technology: Numerical and Experimental Investigations of Alloys
edited by
submission deadline 30 Jul 2025 | Viewed by 131 | Submission Open
Keywords: laser processing; alloys; material characterization; numerical simulation
(This special issue belongs to the Section Crystalline Metals and Alloys)
Bioinspired Mineralization of Dental Tissues
edited by
submission deadline 31 Jul 2025 | 1 articles | Viewed by 667 | Submission Open
Keywords: remineralization; biomaterials; crystallization; fluoride
(This special issue belongs to the Section Mineralogical Crystallography and Biomineralization)
Novel Crystalline Catalysts
edited by Lili Wan
submission deadline 31 Jul 2025 | Viewed by 382 | Submission Open
Keywords: synthesis of novel crystals; nanocrystal; nanocluster; single crystal; polycrystal; composite crystal; effect of crystal phase; crystal structure; exposed crystal phase or crystal defects on catalysis; green energy conversion; degradation of pollutant; green synthesis; structure activity relationship
(This special issue belongs to the Section Materials for Energy Applications)
Protein Crystallography: The State of the Art submission deadline 10 Aug 2025 | 5 articles | Viewed by 7370 | Submission Open
Keywords: time-resolved serial crystallography in XFEL and synchrotrons (TR-SFX; TR-SSX); pink beam crystallography; small-angle X-ray scattering (SAXS); structural-based drug discovery; mechanistic enzymology; membrane proteins; macromolecular complexes; software developments for macromolecular crystallography; deep learning and artificial intelligence
(This special issue belongs to the Section Macromolecular Crystals)
Microstructural Characterization and Property Analysis of Alloys
edited by Lei Wang
submission deadline 10 Aug 2025 | 7 articles | Viewed by 5785 | Submission Open
Keywords: microstructural characterization; alloys; performance analysis; materials science; material performance optimization; crystallography
(This special issue belongs to the Section Crystalline Metals and Alloys)
Synthesis, Characterization and Applications of Crystalline Electroconductive Polymers
edited by Rocco Carcione, , Giorgio Scordo and
submission deadline 10 Aug 2025 | 3 articles | Viewed by 5141 | Submission Open
Keywords: electroconducting polymer-based materials; nanocomposites; carbon-based nanomaterials; biocomposite materials; polymerization processes; polymer matrix; surface modification; interfacial properties; applications; sensors and devices; morphological and structural characterizations
(This special issue belongs to the Section Materials for Energy Applications)
Superconductivity and Condensed Matter Physics
edited by Byungkyun Kang
submission deadline 10 Aug 2025 | 1 articles | Viewed by 582 | Submission Open
Keywords: superconductors  ; high-temperature superconductivity; low-dimensional crystals; hydrides; spin-triplet superconductor; nanostructure; magnetism  ; topological quantum
(This special issue belongs to the Section Inorganic Crystalline Materials)
Research on Scintillators
edited by Siqi Li and Zhi Yang
submission deadline 10 Aug 2025 | Viewed by 246 | Submission Open
Keywords: new materials for scintillation; scintillator fabrication techniques; scintillators in medical; environmental; and security; advances in scintillator technology; scintillator modeling and simulation
(This special issue belongs to the Section Inorganic Crystalline Materials)
Corrosion and Mechanical Performance of Magnesium Alloys
edited by , and Norbert Hort
submission deadline 15 Aug 2025 | 4 articles | Viewed by 8705 | Submission Open
Keywords: mg alloys; magnesium alloys; mg-based materials; processing; microstructure; precipitation; mechanical properties; corrosion; coating; degradation; modelling; simulation
(This special issue belongs to the Section Crystalline Metals and Alloys)
Structural Engineering of Low-Dimensional Materials for Desired Properties
edited by
submission deadline 20 Aug 2025 | 8 articles | Viewed by 19056 | Submission Open
Keywords: graphene; transition metal dichalcogenides; boron nitride; MXenes; carbon nanotubes; quantum dots; fullerenes; synthesis; structures; properties
(This special issue belongs to the Section Inorganic Crystalline Materials)
Advances in Materials for Energy Conversion and Storage
edited by Palanisamy Rajkumar, Vediyappan Thirumal and Asaithambi Sankaiya
submission deadline 20 Aug 2025 | 6 articles | Viewed by 11004 | Submission Open
Keywords: energy conversion; energy storage; batteries; supercapacitors; fuel cells; catalysts
(This special issue belongs to the Section Materials for Energy Applications)
Advances in Surface Modifications of Metallic Materials
edited by , and Zhengwu Fang
submission deadline 20 Aug 2025 | 3 articles | Viewed by 3749 | Submission Open
Keywords: surface modification; severe plastic deformation; coating; microstructure; residual stress; grain size refinement; extreme environment; metallic materials; tribology; corrosion
(This special issue belongs to the Section Crystalline Metals and Alloys)
Solution Processing and Properties of Oxide Films and Nanostructures
edited by , Chin-Hau Chia and
submission deadline 20 Aug 2025 | 3 articles | Viewed by 3729 | Submission Open
Keywords: solution; synthesis; oxide; nanostructure
(This special issue belongs to the Section Inorganic Crystalline Materials)
Advances in Diamond Crystals and Devices
edited by Benjian Liu, Yu Fu and
submission deadline 20 Aug 2025 | 2 articles | Viewed by 3633 | Submission Open
Keywords: diamond growth and doping; high power devices; microwave power devices; diamond detectors; color centers; quantum sensing; quantum technologies; fluorescent nanodiamond; application of diamond for heat dissipation; diamond and carbon materials for biomedical applications; chemical applications
(This special issue belongs to the Section Inorganic Crystalline Materials)
Crystal Structures and Applications of Perovskite Halides in Solar Cells
edited by Yutong Ren and
submission deadline 20 Aug 2025 | 2 articles | Viewed by 2855 | Submission Open
Keywords: crystal structures; perovskite halides; solar cells; X-ray diffraction; transmission electron microscopy; thin films; power conversion efficiency
Microstructure and Properties of Steels and Other Structural Alloys, Second Edition
edited by
submission deadline 20 Aug 2025 | 3 articles | Viewed by 2701 | Submission Open
Keywords: steels and structural alloys; material characterization; phase transformations; mechanical properties; heat-resistant alloys; phase transformations; thermodynamic simulations; microstructure– property relationship; material design and development
(This special issue belongs to the Section Crystalline Metals and Alloys)
Advanced Solid-State Batteries: Materials, Interfaces, Technologies, and Applications
edited by Zhijie Bi
submission deadline 20 Aug 2025 | 2 articles | Viewed by 2004 | Submission Open
Keywords: new materials (cathodes; electrolytes; and anodes) for solid-state batteries; high-performance solid-state alkali metals (Li; Na; K; Al; Mg; etc.) batteries; solid-state air batteries (Li-air; Li-O2; Na-air; Na-O2; Li-CO2; etc.); new design; fabrication and manufacturing technologies; interfacial engineering strategies for solid-state batteries; advanced characterization of interfacial evolutions; reaction mechanisms of electrode materials; failure mechanisms of electrode/electrolyte interfaces; formation and solutions to dendrites issues; industrial progress of solid-state batteries
(This special issue belongs to the Section Materials for Energy Applications)
Electrochemical & Photoelectrochemical Photocatalysts: From Fundamentals to Materials Performance
edited by
submission deadline 20 Aug 2025 | 1 articles | Viewed by 1691 | Submission Open
Keywords: electrochemical; photoelectrochemical; photocatalysts; nanomaterials; H2 production; pollutant degradation; CO2 reduction; NH3 production
(This special issue belongs to the Section Materials for Energy Applications)
Nonlinear Optical Properties and Applications of 2D Materials
edited by José Guadalupe Murillo-Ramírez and
submission deadline 20 Aug 2025 | 1 articles | Viewed by 1375 | Submission Open
Keywords: monoatomic layers; graphene oxide; photonic materials; heterojunctions; thin films
(This special issue belongs to the Section Inorganic Crystalline Materials)
Electron Transport, Spintronics and Giant Magnetoresistance Effects in Low-Dimensional Materials
edited by and Jing Qi
submission deadline 20 Aug 2025 | Viewed by 199 | Submission Open
Keywords: low-dimensional materials; electron transport; nanostructures; spintronics; magnetronics
(This special issue belongs to the Section Inorganic Crystalline Materials)
New Insights into Ferroelectric Oxide Materials: From Fundamentals to Applications
edited by Kai Jiang and
submission deadline 20 Aug 2025 | Viewed by 183 | Submission Open
Keywords: ferroelectric oxide; two-dimensional ferroelectrics; organic ferroelectrics; ferroelectric materials; ferroelectric crystals; crystal structure
(This special issue belongs to the Section Inorganic Crystalline Materials)
Research and Applications of f-Element Complexes
edited by Katherine R. Johnson, Jeffrey Einkauf and
submission deadline 20 Aug 2025 | Viewed by 177 | Submission Open
Keywords: X-ray diffraction; optical properties; actinide covalency; synthesis of novel complexes and crystal growth; crystallization methodologies; rare earth compounds
(This special issue belongs to the Section Organic Crystalline Materials)
Microstructure Evolution During Cold and Hot Deformation
edited by Xingang Liu, and
submission deadline 20 Aug 2025 | Viewed by 140 | Submission Open
Keywords: microstructures; deformation; fatigue; corrosion; fracture; multi-scale; advanced materials; numerical model
New Insights into the Development of High-Specific-Energy Battery Materials
edited by Jingyi Luan
submission deadline 20 Aug 2025 | Viewed by 86 | Submission Open
Keywords: high-specific-energy batteries; energy storage mechanisms; material structure design; electrode/electrolyte interface; practical applications
(This special issue belongs to the Section Materials for Energy Applications)
Design, Microstructure and Mechanical Properties of Cu-Based Alloys
edited by
submission deadline 28 Aug 2025 | 3 articles | Viewed by 2683 | Submission Open
Keywords: copper-based alloys; microstructure refinement; mechanical properties; additive manufacturing; heat treatments
(This special issue belongs to the Section Crystalline Metals and Alloys)
Advanced Welding and Additive Manufacturing
edited by and Guorui Sun
submission deadline 29 Aug 2025 | 2 articles | Viewed by 1502 | Submission Open
Keywords: welding; additive manufacturing; microstructure; mechanical properties
(This special issue belongs to the Section Crystalline Metals and Alloys)
Crystal Growth of III–V Semiconductors
edited by Xin Wei and
submission deadline 30 Aug 2025 | 1 articles | Viewed by 1504 | Submission Open
Keywords: epitaxy; MOCVD  ; MBE; III– V semiconductor
(This special issue belongs to the Section Inorganic Crystalline Materials)
Synthesis, Crystal Structures, and Biological Activities of Transition Metal Complexes
edited by Dušan Dimić
submission deadline 30 Aug 2025 | 1 articles | Viewed by 1347 | Submission Open
Keywords: transition metal complexes; DFT; QTAIM; cytotoxicity; antioxidant activity; protein binding affinity; crystal structures; NMR; IR
(This special issue belongs to the Section Hybrid and Composite Crystalline Materials)
Polymorphism and Phase Transitions in Crystal Materials submission deadline 30 Aug 2025 | Viewed by 351 | Submission Open
Keywords: polymorph; polymorphism; phase transition; form change; crystal; cocrystal; solid; pharmaceutical; solid state
(This special issue belongs to the Section Crystal Engineering)
Deformation and Degradation Behavior of Alloys and Structural Materials
edited by Zachary Norris Buck, James Robert Torres and
submission deadline 30 Aug 2025 | Viewed by 123 | Submission Open
Keywords: deformation mechanisms; fatigue and fracture; microstructure characterization; residual stress; alloy design; embrittlement; corrosion; phase transformation; additive manufacturing; X-ray and neutron scattering; mitigation
(This special issue belongs to the Section Crystalline Metals and Alloys)
Young Crystallographers Across Europe submission deadline 31 Aug 2025 | 8 articles | Viewed by 15619 | Submission Open
Keywords: young crystallographers; crystallography; structural investigation
Metal Oxides: Crystal Structure, Synthesis and Characterization (2nd Edition) submission deadline 31 Aug 2025 | 7 articles | Viewed by 6814 | Submission Open
Keywords: metal oxides; material characterization; synthesis; crystal structure; nanomaterials; applications
(This special issue belongs to the Section Inorganic Crystalline Materials)
Synthesis, Structure and Application of Metal Halides
edited by Bo Zhang
submission deadline 31 Aug 2025 | 2 articles | Viewed by 1271 | Submission Open
Keywords: X-ray diffraction analysis; structural assembly; structure– activity relationship; semiconductor property; theoretical research; catalysis
(This special issue belongs to the Section Inorganic Crystalline Materials)
Advanced Research of Graphene Oxide-Based Materials for Catalysis
edited by and Ivalina Trendafilova
submission deadline 31 Aug 2025 | Viewed by 730 | Submission Open
Keywords: synthesis or growth of graphene-based materials; characterization of graphene-based materials; theoretical models; graphene-based materials in energy applications; graphene-based materials in catalysis
(This special issue belongs to the Section Inorganic Crystalline Materials)
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