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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Innovations in Magnetic Composites: Synthesis to Application
edited by Izabella Crăciunescu
submission deadline 10 May 2026 | 3 articles | Viewed by 3308 | Submission Open
Keywords: magnetic nanomaterials; composites; hybrid nanostructures; magnetoresponsive systems; applications
Microstructure, Properties and Characterization of Aluminum Alloys submission deadline 10 May 2026 | 2 articles | Viewed by 1853 | Submission Open
Keywords: aluminum alloys; microstructure evolution; mechanical properties; corrosion resistance; precipitation strengthening; advanced characterization; additive manufacturing; thermomechanical processing; phase transformation; structure– property relationships
(This special issue belongs to the Section Crystalline Metals and Alloys)
Metallurgy-Processing-Properties Relationship of Metallic Materials
edited by
submission deadline 15 May 2026 | 3 articles | Viewed by 3166 | Submission Open
Keywords: metallurgy; phase transformation; phase diagram; material processing; alloy development; mechanical properties; microstructural analysis; simulation; characterization techniques
(This special issue belongs to the Section Crystalline Metals and Alloys)
Advances in New Functional Biomaterials for Medical Applications, Second Edition submission deadline 20 May 2026 | 4 articles | Viewed by 5996 | Submission Open
Keywords: new biomaterials; characterization; metallic biomaterials; bio interactive; resorbable biomaterials; controlled reactions
(This special issue belongs to the Section Hybrid and Composite Crystalline Materials)
Advances in High-Performance Alloys
edited by Huihui Zhi, Cheng Wen and
submission deadline 20 May 2026 | 6 articles | Viewed by 4840 | 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 20 May 2026 | 2 articles | Viewed by 2775 | 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)
Electrochemical Preparation of Magnetic Materials
edited by Milica Spasojević Savković and
submission deadline 20 May 2026 | Viewed by 1637 | Submission Open
Keywords: electrodeposition; magnetization; electric properties; energy storage; electrochemistry
(This special issue belongs to the Section Materials for Energy Applications)
Advances in Electrocatalyst Materials
edited by and
submission deadline 20 May 2026 | 2 articles | Viewed by 1492 | Submission Open
Keywords: electrocatalysis; nanostructured Materials; metal-organic frameworks (MOFs); machine learning potentials (MLPs); density functional theory (DFT); microkinetic modelling; reaction mechanisms; sustainable energy conversion
(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 May 2026 | 2 articles | Viewed by 1288 | 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 Catalytic Materials in Energy and Environment
edited by Wanliang Yang
submission deadline 20 May 2026 | 2 articles | Viewed by 1178 | Submission Open
Keywords: crystalline catalysts; crystal facet; defect engineering; in situ XRD; CO2  reduction; water splitting; photocatalysis; electrocatalysis; perovskite; MOF
(This special issue belongs to the Section Materials for Energy Applications)
Advances in the Growth and Application of Nitride Crystals
edited by
submission deadline 20 May 2026 | 1 articles | Viewed by 716 | Submission Open
Keywords: gallium nitride; aluminum nitride; boron nitride; crystal growth; substrate processing; hydride vapor phase epitaxy; flux method; high-pressure ammonothermal method; physical vapor transport; chemical mechanical polishing
(This special issue belongs to the Section Inorganic Crystalline Materials)
Recent Advances in the Development and Application of Clay-Based Hybrid and Composite Materials submission deadline 20 May 2026 | Viewed by 279 | Submission Open
Keywords: clay functionalization and intercalation chemistry; structural and morphological characterization; organo-clay nanocomposites; chemical sensors and BioSensors; materials for 3D printing
(This special issue belongs to the Section Hybrid and Composite Crystalline Materials)
Exploring New Materials for the Transition to Sustainable Energy
edited by
submission deadline 26 May 2026 | 17 articles | Viewed by 19770 | Submission Open
Keywords: structural characterization; nanocrystalline materials; thermal behavior; design materials; electronic structures (interface electronic structure); photocatalytic (materials; behavior; degradation); solar energy (solar cells; energy conversion); energy storage (electrolytes; energy storage materials; batteries); transport properties; electrochemical energy systems (battery; supercapacitor); functional materials; sustainable materials; electrochemical materials; materials for energy
Advanced Research in Lithium-Ion Battery Materials
edited by
submission deadline 31 May 2026 | Viewed by 258 | Submission Open
Keywords: lithium metal anodes; electrolyte design solid-state batteries; cathode stabilization; novel characterization methodologies
(This special issue belongs to the Section Materials for Energy Applications)
Advances in Scintillators: Luminescence Properties and Applications submission deadline 11 Jun 2026 | 1 articles | Viewed by 937 | Submission Open
Keywords: scintillator crystals; inorganic scintillators; co-doped scintillators; mixed scintillators; hybrid scintillator materials (inorganic/organic); medical imaging; nuclear imaging detectors
Properties of Transition Metals and Their Compounds at Extreme Conditions (2nd Edition) submission deadline 15 Jun 2026 | 7 articles | Viewed by 18629 | Submission Open
Keywords: extreme conditions research; phase transitions; structural; electronic and magnetic properties; textural evolution; phase diagrams modelling and characterisation; new materials; equation of state; melting curves; symmetry-breaking
(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 Jun 2026 | 3 articles | Viewed by 4329 | 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)
Metal Coordination Complexes for Optical and Chiro-Optical Applications submission deadline 15 Jun 2026 | 2 articles | Viewed by 988 | Submission Open
Keywords: chirality; supramolecular chemistry; computational chemistry; metal coordination complexes; X-ray characterization
Fatigue and Fracture of Crystalline Metal Structures
edited by Xiangnan Pan and
submission deadline 20 Jun 2026 | 11 articles | Viewed by 22224 | Submission Open
Keywords: fatigue and fracture; fatigue regimes; engineering vibration; elastic and plastic waves; metals and alloys; additive manufacturing; microstructure modeling; microstructure characterization; civil engineering; aerospace structure
(This special issue belongs to the Section Crystalline Metals and Alloys)
Recent Research on Electronic Materials and Packaging Technology
edited by , Jinguo Ge and Jing Liu
submission deadline 20 Jun 2026 | 3 articles | Viewed by 4272 | Submission Open
Keywords: electronics packaging; advanced manufacturing techniques; crystalline materials; microstructure characterization; semiconductor crystals; thermal interface materials
(This special issue belongs to the Section Hybrid and Composite Crystalline Materials)
Crystal Structure and Characterization of Minerals and Related Nanomaterials
edited by
submission deadline 20 Jun 2026 | 2 articles | Viewed by 2677 | Submission Open
Keywords: mineral; crystal; crystal structure; new mineral species and mineral groups; crystal chemistry and properties of minerals and related nanomaterials; chemical variability; homogeneity; advanced minerals and nanomaterials characterization
(This special issue belongs to the Section Mineralogical Crystallography and Biomineralization)
Advances and Perspectives in Noble Metal Nanoparticles submission deadline 20 Jun 2026 | 3 articles | Viewed by 2506 | Submission Open
Keywords: nanomaterials; nanoparticles; noble metal; AuNPs; AgNPs; PtNPs; platinum group metals; sensing; catalysis; nanomedicine; bioactivity
(This special issue belongs to the Section Hybrid and Composite Crystalline Materials)
Functional Acoustic Metamaterials
edited by
submission deadline 20 Jun 2026 | 1 articles | Viewed by 2192 | Submission Open
Keywords: anisotropy; acoustic(s); metamaterial; metasurface; cloak; stealth; supersonic(s); ultrasonic(s); off-diagonal element
Thin Film Materials for Sensors submission deadline 20 Jun 2026 | 2 articles | Viewed by 1462 | Submission Open
Keywords: thin film; sensors; flexible temperature; temperature measurement; temperature-sensitive materials
(This special issue belongs to the Section Inorganic Crystalline Materials)
Advanced Research in Biomineralization submission deadline 20 Jun 2026 | Viewed by 382 | Submission Open
Keywords: pathological mineralization; spontaneous precipitations; kinetics of precipitation; additives; biomineralization; crystallization; in vivo/in vitro microbiological studies; nanomaterials
(This special issue belongs to the Section Biomolecular Crystals)
Novel Functional Crystalline Materials for Energy Conversion and Sensing submission deadline 20 Jun 2026 | Viewed by 260 | Submission Open
Keywords: functional crystalline materials; energy conversion; sensing materials; photovoltaic and photocatalysis systems; thermoelectric and thermionic materials; piezoelectric crystals; crystal growth and design; low-dimensional crystalline systems; hybrid crystalline materials; computational materials science
(This special issue belongs to the Section Inorganic Crystalline Materials)
Solid-State Batteries: Materials Design and Optimization
edited by Sijie Liu and
submission deadline 20 Jun 2026 | Viewed by 241 | Submission Open
Keywords: solid-state batteries; crystalline materials; electrode materials; solid electrolytes; interface engineering; cell design; energy storage; lithium-ion batteries; thermal stability; ionic conductivity
(This special issue belongs to the Section Materials for Energy Applications)
Physical and Chemical Nature of Cemented Carbides submission deadline 20 Jun 2026 | Viewed by 201 | Submission Open
Keywords: high-entropy alloys (HEAs); cemented carbides; mechanical milling; sintering techniques (SPS/HIP); microstructural characterization
(This special issue belongs to the Section Crystalline Metals and Alloys)
Preparation and Performance Research of Piezoelectric Ceramics
edited by and Yongcheng Zhang
submission deadline 20 Jun 2026 | Viewed by 172 | Submission Open
Keywords: piezoelectric ceramics; ferroelectric materials; lead-free piezoelectrics; material synthesis; sintering; structure-property relationships; electromechanical properties; actuators and sensors
(This special issue belongs to the Section Polycrystalline Ceramics)
Electrode Materials in Lithium-Ion Batteries
edited by Zhongren Zhou
submission deadline 25 Jun 2026 | 2 articles | Viewed by 4654 | Submission Open
Keywords: lithium-ion battery; positive-electrode material; negative-electrode material; new electrode material; electrochemical performance; lithium storage performance; lithium iron phosphate; lithium nickel– manganese– cobalt oxide; silicon-based material; lithium manganese oxide; molten salt electrochemistry; solid waste resources recovery
(This special issue belongs to the Section Materials for Energy Applications)
Modified Semiconductors: Synthesis, Structure and Advanced Applications
edited by Nivaldo Freire Andrade Neto
submission deadline 25 Jun 2026 | Viewed by 242 | Submission Open
Keywords: nanomaterials and nanotechnology; semiconductors; photocatalytic applications; electrochemical applications; crystallography; spectroscopy
(This special issue belongs to the Section Inorganic Crystalline Materials)
Recent Research on Piezoelectric Ceramics
edited by Nengneng Luo, , Xudong Qi, Linjing Liu, and Kai Li
submission deadline 29 Jun 2026 | 2 articles | Viewed by 1794 | Submission Open
Keywords: piezoelectric ceramics; manufacture technologies; piezoelectricity; defect; grain
(This special issue belongs to the Section Polycrystalline Ceramics)
Advances in Low-Dimensional Materials for Electronics and Sensing Applications
edited by and
submission deadline 30 Jun 2026 | 12 articles | Viewed by 56256 | Submission Open
Keywords: low-dimensional materials; low-dimensional devices; medical diagnosis; gas sensors; flexible electronics; optoelectronics; nanodevices; nanomechanics; MEMS/NEMS
(This special issue belongs to the Section Inorganic Crystalline Materials)
Co-Crystals and Polymorphic Transition in Energetic Materials
edited by , and
submission deadline 30 Jun 2026 | 6 articles | Viewed by 24889 | Submission Open
Keywords: energetic co-crystals; crystal phases control; polymorphic transition inhibition; crystal structure prediction
(This special issue belongs to the Section Crystal Engineering)
Density Functional Theory (DFT) in Crystalline Material
edited by , Rodrigo Gester and Mateus Ribeiro Lage
submission deadline 30 Jun 2026 | 2 articles | Viewed by 2352 | Submission Open
Keywords: density functional theory; crystalline materials; electronic structure; defects; phase stability; mechanical properties; surface science; high-throughput screening; machine learning; computational material science
Synthesis and Structure of Nanocomposites
edited by and Zahra Heydari
submission deadline 30 Jun 2026 | Viewed by 312 | Submission Open
Keywords: nanocomposites; synthesis methods; nanofillers; advanced characterization; nanomaterials engineering
Thermal Coatings: Properties and Applications
edited by Dorin Luca and
submission deadline 30 Jun 2026 | Viewed by 260 | Submission Open
Keywords: flame spraying; high-velocity oxygen fuel; high-velocity air fuel; detonation gun spraying; arc spraying; plasma jet deposition
(This special issue belongs to the Section Crystalline Metals and Alloys)
Metal–Organic Complexes for Synthesis
edited by and
submission deadline 30 Jun 2026 | Viewed by 239 | Submission Open
Keywords: metal– organic complexes; photocatalysis; organic synthesis; photothermal reactions; enzyme mimic catalysis; synthetic methodology; homogeneous catalysis; heterogeneous catalysis; electrocatalysis; cooperative catalysis; gas conversion; metal– organic frameworks (MOFs); nanoenzymes; plastic recycling; polymer engineering
(This special issue belongs to the Section Organic Crystalline Materials)
MXenes: From Synthesis to Applications
edited by and
submission deadline 30 Jun 2026 | Viewed by 195 | Submission Open
Keywords: MXenes; two-dimensional materials; surface engineering; energy storage and conversion; electromagnetic interference shielding; terahertz absorption
(This special issue belongs to the Section Inorganic Crystalline Materials)
Investigation of Microstructural and Properties of Steels and Alloys
edited by and
submission deadline 10 Jul 2026 | 5 articles | Viewed by 5174 | Submission Open
Keywords: high-temperature alloys; Ni-/Co-based superalloys; steels; alloy design; nanomaterials; structure-property relationships; advanced microscopy; machine learning in materials science
(This special issue belongs to the Section Crystalline Metals and Alloys)
Metal Complexes: Synthesis, Structure, and Biological Activity
edited by and Jovana V. Bogojeski
submission deadline 10 Jul 2026 | Viewed by 282 | Submission Open
Keywords: coordination compounds; transition metal complexes; N-; O-; S-donor ligands; spectroscopic characterization; X-ray crystallography / crystal structure; thermodynamic and kinetic studies; stability and reactivity; DNA and protein interactions; cytotoxicity and antitumor activity; antimicrobial activity
(This special issue belongs to the Section Crystal Engineering)
Key Crystal Materials for Optoelectronic Devices: Structure Regulation, Performance Optimization, and Device Applications
edited by Penghui He and
submission deadline 10 Jul 2026 | Viewed by 227 | Submission Open
Keywords: crystal growth and defect engineering; optoelectronic property tuning; structure– performance relationships; high-efficiency photonic devices; emerging crystalline materials
(This special issue belongs to the Section Inorganic Crystalline Materials)
Advanced Research on Ferroelectric Materials
edited by Tianyu Li and
submission deadline 10 Jul 2026 | Viewed by 174 | Submission Open
Keywords: ferroelectrics; dielectrics; piezoelectrics; polarization; ferroelectric domain; lattice structure; electronic structure; thin film; ceramic; device
(This special issue belongs to the Section Inorganic Crystalline Materials)
Research Progress of Photoluminescent Materials
edited by Lei Han
submission deadline 15 Jul 2026 | 5 articles | Viewed by 11459 | Submission Open
Keywords: photoluminescence; luminescent materials; optoelectronic devices; advanced photonic applications; optoelectronics and photonics
(This special issue belongs to the Section Inorganic Crystalline Materials)
Graphene-Related and Graphene-Like Reinforcements in Composites: Manufacturing and Applications
edited by and Silvia Vesco
submission deadline 15 Jul 2026 | Viewed by 483 | Submission Open
Keywords: two-dimensional materials; polymer composites; metal matrix composites; coatings; particle reinforcement; green manufacturing; lightweighting; wear resistance; mechanical performances; conductivity
Structure and Characterization of Enzymes
edited by
submission deadline 17 Jul 2026 | 2 articles | Viewed by 1788 | Submission Open
Keywords: enzyme structure; biocatalysis; structure– function relationship; X-ray crystallography; artificial intelligence in structural biology
Analysis of Halogen and Other σ-Hole Bonds in Crystals (2nd Edition)
edited by
submission deadline 20 Jul 2026 | 6 articles | Viewed by 7617 | Submission Open
Keywords: halogen bonding; sigma-hole bonding; electrostatic potentials; nature of noncovalent interactions
(This special issue belongs to the Section Crystal Engineering)
Crystallographic and Molecular Approaches in Drug Design and Development
edited by , Nada Kheira Sebbar and Riham Sghyar
submission deadline 20 Jul 2026 | Viewed by 260 | Submission Open
Keywords: organic synthesis; medicinal chemistry; bioactive organic compounds; structure– activity relationships; molecular design; solid-state properties; QSAR/QSPR
(This special issue belongs to the Section Biomolecular Crystals)
Recent Advances in Photocatalytic Materials
edited by Yingchun Li and
submission deadline 20 Jul 2026 | Viewed by 239 | Submission Open
Keywords: photocatalyst; photocatalysis; photocatalytic reduction of carbon dioxide; photocatalytic splitting water; photocatalytic degradation; photocatalytic self-cleaning
(This special issue belongs to the Section Materials for Energy Applications)
Synthesis and Characterization of Ceramics and Ceramic-Based Composites submission deadline 20 Jul 2026 | Viewed by 232 | Submission Open
Keywords: ceramics; crystalline structure; characterization methods; sintering; microstructure; ceramic-based composites
(This special issue belongs to the Section Polycrystalline Ceramics)
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