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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Widespread Application of Advanced Nanomaterials
edited by , Dan Xue and
submission deadline 20 Oct 2025 | Viewed by 31 | 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)
Layered Materials and Their Applications
edited by and Cristina Carbone
submission deadline 23 Oct 2025 | 1 articles | Viewed by 199 | 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 | Viewed by 73 | 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 | Viewed by 51 | 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 22 | 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 | 4 articles | Viewed by 3278 | 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 32 | 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 6012 | 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)
Sustainable Heterogeneous Catalyst: From Structure to Application
edited by and
submission deadline 10 Nov 2025 | 1 articles | Viewed by 2358 | 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)
Recent Advances in Photocatalysts Materials
edited by Kristina Mojsilovic and
submission deadline 10 Nov 2025 | 1 articles | Viewed by 580 | 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)
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 2295 | 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)
Advanced Surface Engineering Materials: Characterization and Properties (2nd Edition) submission deadline 15 Nov 2025 | 2 articles | Viewed by 1863 | Submission Open
Keywords: surface characterization; ultra-thin films; surface treatments; functionalized surface; SPM techniques
(This special issue belongs to the Section Inorganic Crystalline Materials)
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 43 | Submission Open
Keywords: metal– organic framework; material discovery; adsorption; catalysis; crystallography; nanomaterial; sensing
(This special issue belongs to the Section Macromolecular Crystals)
Innovations in Magnetic Composites: Synthesis to Application
edited by Izabella Crăciunescu
submission deadline 15 Nov 2025 | Viewed by 43 | Submission Open
Keywords: magnetic nanomaterials; composites; hybrid nanostructures; magnetoresponsive systems; applications
Cutting-Edge Research in Plastic-Flexible Thermoelectric Materials
edited by Dongwang Yang
submission deadline 15 Nov 2025 | Viewed by 7 | 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 | 7 articles | Viewed by 7067 | 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)
New Horizons in Metal–Organic Frameworks: Fundamentals, Characterization, and Molecular Modeling submission deadline 20 Nov 2025 | Viewed by 209 | 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)
Performance and Processing of Metal Materials
edited by Zhanfeng Wang and Benilde F. O. Costa
submission deadline 20 Nov 2025 | Viewed by 88 | 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)
Crystaline TiO2 Nanotubes: From Production, Modification, to Innovative Applications
edited by
submission deadline 20 Nov 2025 | Viewed by 38 | 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 115 | 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)
Advanced Alloys for Aggressive Environments: Challenges and Breakthroughs
edited by , Raquel Lopez and
submission deadline 25 Nov 2025 | Viewed by 60 | 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)
Advances in High-Performance Alloys
edited by Huihui Zhi, Cheng Wen and
submission deadline 30 Nov 2025 | Viewed by 69 | 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 12 | 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 25 | Submission Open
Keywords: aqueous batteries; supercapacitor; electrochemical energy storage; energy storage materials
Recent Advances in Graphene and Other Two-Dimensional Materials submission deadline 15 Dec 2025 | 6 articles | Viewed by 15155 | 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 14093 | 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)
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 3562 | 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 Research on Electronic Materials and Packaging Technology
edited by , Jinguo Ge and Jing Liu
submission deadline 20 Dec 2025 | 1 articles | Viewed by 489 | 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)
Functional Acoustic Metamaterials
edited by
submission deadline 20 Dec 2025 | Viewed by 55 | Submission Open
Keywords: anisotropy; acoustic(s); metamaterial; metasurface; cloak; stealth; supersonic(s); ultrasonic(s); off-diagonal element
Advanced Research in Biomineralization
edited by Anamarija Stanković and
submission deadline 20 Dec 2025 | Viewed by 54 | 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)
Advances in Functional Materials for Biomedical Applications
edited by
submission deadline 20 Dec 2025 | Viewed by 45 | 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)
Research Progress on Thermoelectric Materials
edited by and
submission deadline 20 Dec 2025 | Viewed by 36 | 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
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 11 | 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
Exploring New Materials for the Transition to Sustainable Energy
edited by
submission deadline 29 Dec 2025 | 2 articles | Viewed by 980 | 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 38610 | 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 31 Dec 2025 | 5 articles | Viewed by 13745 | Submission Open
Keywords: energetic co-crystals; crystal phases control; polymorphic transition inhibition; crystal structure prediction
(This special issue belongs to the Section Crystal Engineering)
Celebrating the 10th Anniversary of International Crystallography submission deadline 31 Dec 2025 | 12 articles | Viewed by 12103 | Submission Open
Keywords: crystals; crystal growth; characterization techniques; crystalline; structure properties and applications of crystalline materials
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 3193 | Submission Open
Keywords: magnesium alloys; aluminium alloys; titanium alloys; microstructure evolution; plastic deformation
(This special issue belongs to the Section Crystalline Metals and Alloys)
Feature Papers on “Hybrid and Composite Crystalline Materials” 2025
edited by
submission deadline 31 Dec 2025 | 2 articles | Viewed by 876 | Submission Open
Keywords: hybrid materials; composite materials; intermolecular interactions; molecular crystals; coordination polymers; metal– organic frameworks; covalent organic frameworks; hierarchical zeolites; zeolite-like materials; organic– inorganic hybrids; graphene; carbon nitride; layered sulfides; metal nanoparticles; metal oxide nanoparticles; metal chalcogenide nanoparticles; metal pnictide nanoparticles; MXenes
(This special issue belongs to the Section Hybrid and Composite Crystalline Materials)
Optical Vortices and Solitons submission deadline 31 Dec 2025 | Viewed by 200 | Submission Open
Keywords: vortex structures; solitons; nonlinear optics; biophotonics
Graphene-Related and Graphene-Like Reinforcements in Composites: Manufacturing and Applications
edited by and Silvia Vesco
submission deadline 31 Dec 2025 | Viewed by 21 | Submission Open
Keywords: two-dimensional materials; polymer composites; metal matrix composites; coatings; particle reinforcement; green manufacturing; lightweighting; wear resistance; mechanical performances; conductivity
Advanced Research on Perovskite Solar Cells
edited by Chunyang Zhang, and
submission deadline 31 Dec 2025 | Viewed by 20 | Submission Open
Keywords: perovskite; solar cell; carbon-based; stable; cost; efficient; energy; structural design
(This special issue belongs to the Section Materials for Energy Applications)
Structure and Characterization of Enzymes
edited by
submission deadline 10 Jan 2026 | Viewed by 25 | Submission Open
Keywords: enzyme structure; biocatalysis; structure– function relationship; X-ray crystallography; artificial intelligence in structural biology
Alloy Materials Degradation and Microstructural Study submission deadline 15 Jan 2026 | Viewed by 68 | Submission Open
Keywords: high-temperature corrosion; material degradation; extreme environment materials; hot corrosion; molten salt corrosion; scanning electron microscopy; mechanical properties; corrosion mechanism; corrosion-resistant alloys; coatings; microstructure characterization
(This special issue belongs to the Section Crystalline Metals and Alloys)
Metal Oxide-Based Nanomaterials: Advances in Synthesis, Characterization, and Applications submission deadline 20 Jan 2026 | Viewed by 1465 | Submission Open
Keywords: metal-oxide-based nanomaterials; nanocrystals; synthesis techniques; characterization; environmental remediation; catalysis; biomedical applications; green synthesis; toxicity assessment; sustainability; interdisciplinary research; machine learning; innovative research; environmental monitoring; drug delivery; life cycle analysis
(This special issue belongs to the Section Hybrid and Composite Crystalline Materials)
Synergizing Crystallography, Mineral Materials Science and Solid Waste Upcycling for Sustainable Materials Innovation
edited by Limei Wu, Xin Liu and
submission deadline 20 Jan 2026 | Viewed by 28 | Submission Open
Keywords: mineral crystallography; mineral materials; solid waste valorization; AI-driven material design
Advances in Functional Materials for Lithium Secondary Battery System: Challenge, Opportunities, Solutions and Applications
edited by Jingzheng Weng, Minquan Tian and
submission deadline 28 Feb 2026 | Viewed by 34 | Submission Open
Keywords: functional materials; crystalline materials; polymer conductors; energy materials; electrode materials; solid electrolytes; high-voltage functional materials; lithium battery; next-generation post-lithium battery systems
(This special issue belongs to the Section Materials for Energy Applications)
Microstructure Characterization and Design of Alloys, 2nd Edition
edited by , Arnoldo Bedolla-Jacuiende and Jacinto Cortéz Pérez
submission deadline 28 Feb 2026 | Viewed by 16 | Submission Open
Keywords: microstructural analysis; mechanical properties; tribological behavior of ferrous and non-ferrous alloys
(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 23 | 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)
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