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 New Multifunctional Hard Materials
edited by Tomas Soria-Biurrun, María de Nicolás Morillas, and
submission deadline 15 Nov 2025 | 2 articles | Viewed by 2608 | 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)
Innovative Insights into Deformation and Failure of Metallic Alloys
edited by and Vasilis Karamitros
submission deadline 15 Nov 2025 | 1 articles | Viewed by 1062 | 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)
Innovations in Magnetic Composites: Synthesis to Application
edited by Izabella Crăciunescu
submission deadline 15 Nov 2025 | 1 articles | Viewed by 96 | Submission Open
Keywords: magnetic nanomaterials; composites; hybrid nanostructures; magnetoresponsive systems; applications
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 80 | 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 30 | 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 | 8 articles | Viewed by 8567 | 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 | 3 articles | Viewed by 2777 | 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 | 2 articles | Viewed by 2107 | 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)
Performance and Processing of Metal Materials
edited by Zhanfeng Wang and Benilde F. O. Costa
submission deadline 20 Nov 2025 | 1 articles | Viewed by 430 | Submission Open
Keywords: metal materials; high-performance alloys; advanced processing techniques; material behavior modeling; mechanical properties
(This special issue belongs to the Section Crystalline Metals and Alloys)
New Horizons in Metal–Organic Frameworks: Fundamentals, Characterization, and Molecular Modeling submission deadline 20 Nov 2025 | Viewed by 232 | 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 152 | 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 84 | 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
Materials and Their Performance Characterization in Extreme Environments
edited by Ruzhuan Wang, Yi He and
submission deadline 25 Nov 2025 | Viewed by 150 | 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)
Optical Characterization of Functional Materials submission deadline 25 Nov 2025 | 1 articles | Viewed by 145 | 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)
Advanced Alloys for Aggressive Environments: Challenges and Breakthroughs
edited by , Raquel Lopez and
submission deadline 25 Nov 2025 | Viewed by 88 | 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)
Solidification Processing of Metal Alloys Under External Fields
edited by , Yanchun Zhu, Jianfei Zhang, and
submission deadline 30 Nov 2025 | 1 articles | Viewed by 1957 | 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 | Viewed by 92 | 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 53 | 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 78 | Submission Open
Keywords: aqueous batteries; supercapacitor; electrochemical energy storage; energy storage materials
Development of Light Alloys and Their Applications
edited by Hua Qian Ang, Gulshan Kumar and
submission deadline 10 Dec 2025 | 7 articles | Viewed by 6154 | 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 | 2 articles | Viewed by 2067 | Submission Open
Keywords: photoluminescence; luminescent materials; optoelectronic devices; advanced photonic applications; optoelectronics and photonics
(This special issue belongs to the Section Inorganic Crystalline Materials)
Thermotropic Liquid Crystals as Novel Functional Materials submission deadline 10 Dec 2025 | Viewed by 316 | 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 | 6 articles | Viewed by 15779 | 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 14732 | 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)
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 | 9 articles | Viewed by 7215 | 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 1599 | 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)
Selected Papers from the 30th International Workshop on Industrial Crystallization (BIWIC 2025) on Crystals
edited by , , Na Wang and
submission deadline 15 Dec 2025 | Viewed by 3 | Submission Open
Keywords: industrial crystallization; crystallization technology; crystallization equipment; crystallization process control; crystallization process enhancement
(This special issue belongs to the Section Industrial Crystallization)
Crystallization and Purification
edited by Kangli Li, and Keke Zhang
submission deadline 20 Dec 2025 | 4 articles | Viewed by 10108 | Submission Open
Keywords: crystallization technology; separation and purification; polymorph regulation; crystal habit
(This special issue belongs to the Section Industrial Crystallization)
Advanced Materials for Applications in Water Splitting
edited by Zhiyi Pan
submission deadline 20 Dec 2025 | 4 articles | Viewed by 4524 | Submission Open
Keywords: hydrogen energy; advanced electrocatalyst; water splitting; material design; structural characterization; simulated calculation; structure– activity relationship; mechanism
(This special issue belongs to the Section Materials for Energy Applications)
The Synthesis and Prospects of Magnetic Materials
edited by Jiayi He, Xuefeng Liao and Jiasheng Zhang
submission deadline 20 Dec 2025 | 3 articles | Viewed by 3863 | Submission Open
Keywords: magnetism; magnetic material; magnetic device; micromagnetic simulation; electromagnetic simulation; machine learning
(This special issue belongs to the Section Crystalline Metals and Alloys)
Recent Advances in Metal-Organic Frameworks: Synthesis, Characterization and Application
edited by Sumei Li
submission deadline 20 Dec 2025 | 2 articles | Viewed by 3368 | Submission Open
Keywords: metal organic framework; CO2 capture; adsorption; catalysis; sample preparation; sensors
(This special issue belongs to the Section Organic Crystalline Materials)
Electrode Materials in Lithium-Ion Batteries
edited by Zhongren Zhou
submission deadline 20 Dec 2025 | 2 articles | Viewed by 1484 | 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)
Growth and Properties of Photovoltaic Materials
edited by Mahmoud H. Hammouri and
submission deadline 20 Dec 2025 | 1 articles | Viewed by 799 | Submission Open
Keywords: photovoltaic materials; solar energy; crystal growth; semiconductor properties; energy conversion
(This special issue belongs to the Section Materials for Energy Applications)
Recent Research on Electronic Materials and Packaging Technology
edited by , Jinguo Ge and Jing Liu
submission deadline 20 Dec 2025 | 1 articles | Viewed by 789 | 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)
Nanoelectronics and Bioelectronics submission deadline 20 Dec 2025 | 1 articles | Viewed by 666 | Submission Open
Keywords: nano-biotechnology; nanoelectronics; nanofabrication; crystalline materials; biosensors; nanomedicine; nanotechnology; functional materials; materials synthesis; wearable sensors; medical diagnostics
New Insights in Electro- and Photo-Catalytic Performance of Biomimetics Composites submission deadline 20 Dec 2025 | Viewed by 431 | Submission Open
Keywords: photoredox; wastewater treatment; metal– organic framework; electrochemical water splitting; hydrogen production; photocatalytic degradation; electrodes development; biomimetic composite; energy storage; self-cleaning materials
(This special issue belongs to the Section Organic Crystalline Materials)
Research Progress on Thermoelectric Materials
edited by and
submission deadline 20 Dec 2025 | Viewed by 82 | Submission Open
Keywords: thermoelectric material  ; thermoelectric efficiency; X-ray diffraction; electrical conductivity  ; Seebeck coefficient  ; thermal conductivity  ; ZT value; band gap; phonon engineering; microstructure  ; sustainable materials  ; energy harvesting
Advanced Research in Biomineralization
edited by Anamarija Stanković and
submission deadline 20 Dec 2025 | Viewed by 75 | 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)
Functional Acoustic Metamaterials
edited by
submission deadline 20 Dec 2025 | Viewed by 75 | Submission Open
Keywords: anisotropy; acoustic(s); metamaterial; metasurface; cloak; stealth; supersonic(s); ultrasonic(s); off-diagonal element
Advances in Functional Materials for Biomedical Applications
edited by
submission deadline 20 Dec 2025 | Viewed by 59 | Submission Open
Keywords: biocompatible materials; crystalline materials; nanocrystals; nanomaterials; composites; surface engineering; biomedicinal applications
(This special issue belongs to the Section Hybrid and Composite Crystalline Materials)
Structure and Properties of Macrocycle-Based Molecular (Co-)Crystals
edited by Bin Li, , Zhongwu Wang and Yiliang Wang
submission deadline 20 Dec 2025 | Viewed by 47 | Submission Open
Keywords: macrocycle crystals; macrocycle co-crystals; room temperature phosphorescence; thermally activated delay fluorescence  ; circularly polarized luminescence; semiconductor; stimuli responsiveness; adsorption/separation; optoelectronic materials
Phase Transformation and Microstructure Evolution of Alloys
edited by Bo Wang, Yuantao Xu and
submission deadline 25 Dec 2025 | 1 articles | Viewed by 250 | Submission Open
Keywords: metals and alloys; phase transformation; hydrogen embrittlement; microstructure evolution; stress corrosion cracking; mechanical property; strengthening and toughening; precipitates; surface engineering; corrosion; thermodynamics
(This special issue belongs to the Section Crystalline Metals and Alloys)
Metal Coordination Complexes for Optical and Chirooptical Applications
edited by Giovanni Bella and
submission deadline 25 Dec 2025 | Viewed by 47 | Submission Open
Keywords: chirality; supramolecular chemistry; computational chemistry; metal coordination complexes; X-ray characterization
Crystal Structure and Characterization of Minerals and Related Nanomaterials
edited by
submission deadline 25 Dec 2025 | Viewed by 23 | 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)
Modified Semiconductors: Synthesis, Structure and Advanced Applications
edited by Nivaldo Freire Andrade Neto
submission deadline 25 Dec 2025 | Viewed by 6 | Submission Open
Keywords: nanomaterials and nanotechnology; semiconductors; photocatalytic applications; electrochemical applications; crystallography; spectroscopy
(This special issue belongs to the Section Inorganic Crystalline Materials)
Exploring New Materials for the Transition to Sustainable Energy
edited by
submission deadline 29 Dec 2025 | 4 articles | Viewed by 1933 | 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
Advances in Low-Dimensional Materials for Electronics and Sensing Applications
edited by and
submission deadline 30 Dec 2025 | 11 articles | Viewed by 41148 | 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)
Celebrating the 10th Anniversary of International Crystallography submission deadline 31 Dec 2025 | 13 articles | Viewed by 15042 | Submission Open
Keywords: crystals; crystal growth; characterization techniques; crystalline; structure properties and applications of crystalline materials
Co-Crystals and Polymorphic Transition in Energetic Materials
edited by , and
submission deadline 31 Dec 2025 | 5 articles | Viewed by 14705 | Submission Open
Keywords: energetic co-crystals; crystal phases control; polymorphic transition inhibition; crystal structure prediction
(This special issue belongs to the Section Crystal Engineering)
Microstructure Evolution and Deformation Mechanisms in Lightweight Alloys
edited by Song Tang, Yuze Li, Zongde Kou and
submission deadline 31 Dec 2025 | 2 articles | Viewed by 3451 | Submission Open
Keywords: magnesium alloys; aluminium alloys; titanium alloys; microstructure evolution; plastic deformation
(This special issue belongs to the Section Crystalline Metals and Alloys)
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