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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Research on Electrolytes and Energy Storage Materials (2nd Edition)
edited by and Mengjie Chen
submission deadline 30 Nov 2025 | Viewed by 58 | 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 86 | 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 6771 | 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 2247 | 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 1424 | 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 | Viewed by 323 | 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 15917 | 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 14867 | 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 7622 | 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 1843 | 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 20 | 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 10689 | Submission Open
Keywords: crystallization technology; separation and purification; polymorph regulation; crystal habit
(This special issue belongs to the Section Industrial Crystallization)
Organic Photonics: Organic Optical Functional Materials and Devices
edited by Yaoxing Bian, Xiaoyu Shi and Junhua Tong
submission deadline 20 Dec 2025 | 4 articles | Viewed by 7212 | Submission Open
Keywords: micro- and nano-cavity lasers; random laser; light-emitting materials and devices; photophysics and spectroscopy for light-emitting materials; photodetection techniques; sensors; micro-nano structured organic semiconductor materials and devices; non-Hermitian; parity– time symmetry; organic flexible driving material; organic smart material
(This special issue belongs to the Section Organic Crystalline Materials)
Advanced Materials for Applications in Water Splitting
edited by Zhiyi Pan
submission deadline 20 Dec 2025 | 4 articles | Viewed by 4799 | 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 3946 | 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 3415 | 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 1573 | 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)
Recent Research on Electronic Materials and Packaging Technology
edited by , Jinguo Ge and Jing Liu
submission deadline 20 Dec 2025 | 1 articles | Viewed by 873 | 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)
Growth and Properties of Photovoltaic Materials
edited by Mahmoud H. Hammouri and
submission deadline 20 Dec 2025 | 1 articles | Viewed by 845 | Submission Open
Keywords: photovoltaic materials; solar energy; crystal growth; semiconductor properties; energy conversion
(This special issue belongs to the Section Materials for Energy Applications)
Nanoelectronics and Bioelectronics submission deadline 20 Dec 2025 | 1 articles | Viewed by 711 | 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 435 | 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 90 | 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 84 | 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 78 | 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 67 | 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 52 | 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 425 | 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 54 | 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 27 | 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 16 | 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 2229 | 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 41635 | 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 | 14 articles | Viewed by 15952 | 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 14957 | 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 3519 | 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 | 4 articles | Viewed by 2164 | 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 220 | Submission Open
Keywords: vortex structures; solitons; nonlinear optics; biophotonics
Advanced Research on Perovskite Solar Cells
edited by Chunyang Zhang, , and
submission deadline 31 Dec 2025 | Viewed by 131 | 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)
Graphene-Related and Graphene-Like Reinforcements in Composites: Manufacturing and Applications
edited by and Silvia Vesco
submission deadline 31 Dec 2025 | Viewed by 104 | Submission Open
Keywords: two-dimensional materials; polymer composites; metal matrix composites; coatings; particle reinforcement; green manufacturing; lightweighting; wear resistance; mechanical performances; conductivity
Metamaterials and Their Devices, Second Edition
edited by
submission deadline 10 Jan 2026 | 5 articles | Viewed by 5266 | Submission Open
Keywords: metamaterials; lattice metamaterials; crystal materials and structures; plasmonic and dielectric metamaterials; photonic crystals; phononic crystals; metasurfaces; fundamental issues; emerging fields for MMs; electromagnetic response; magnetic-resonance; electric-resonance; numerical methods; applications
(This special issue belongs to the Section Hybrid and Composite Crystalline Materials)
Structure and Characterization of Enzymes
edited by
submission deadline 10 Jan 2026 | Viewed by 77 | Submission Open
Keywords: enzyme structure; biocatalysis; structure– function relationship; X-ray crystallography; artificial intelligence in structural biology
2D Crystalline Nanomaterials (2nd Edition)
edited by Yao Yao
submission deadline 10 Jan 2026 | Viewed by 57 | Submission Open
Keywords: 2D crystalline nanomaterial; device; electronic
Mechanical Properties of Light Alloys
edited by Wenjie Song and
submission deadline 10 Jan 2026 | Viewed by 23 | Submission Open
Keywords: magnesium; microstructure; mechanical properties; friction stir welding; cast; plastic deformation; hydrogen storage; kinetics; titanium; aluminum; titanium alloy casting; high-performance aluminum alloy; counter-gravity casting; titanium aluminide
Synchrotron X-Ray Techniques in the Study of Nanomaterials
edited by Lucas Atila Bernardes Marçal, Ângelo Malachias de Souza and
submission deadline 10 Jan 2026 | Viewed by 22 | Submission Open
Keywords: X-ray diffraction; crystallography; synchrotron radiation; nanomaterials; crystal dynamics; X-ray spectroscopy; nano-device characterization
Advances in Metal Matrix Composites (Second Edition)
edited by
submission deadline 15 Jan 2026 | 2 articles | Viewed by 3204 | Submission Open
Keywords: metal matrix composites; additive manufacturing; nanocarbons; spark plasma sintering; powder metallurgy; interface control; strengthening mechanism; mechanical response; functional properties
(This special issue belongs to the Section Crystalline Metals and Alloys)
Lanthanide Coordination Complexes: Advances in Ligand Design, Structure, and Luminescent Applications
edited by Nawal Al-Rasbi
submission deadline 15 Jan 2026 | Viewed by 253 | Submission Open
Keywords: lanthanide(III) coordination complexes; crystal structure; ligand’ s design; luminescence properties; light emitting diodes (LEDs); luminescent chemo-sensors; antibacterial and antimicrobial activity
(This special issue belongs to the Section Inorganic Crystalline Materials)
Alloy Materials Degradation and Microstructural Study submission deadline 15 Jan 2026 | Viewed by 113 | 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)
Crystalline Materials for Energy Storage submission deadline 15 Jan 2026 | Viewed by 9 | Submission Open
Keywords: energy storage; solid-state electrolytes; flexible and wearable storage devices; thin-film supercapacitors; integration of harvesting/storage elements
(This special issue belongs to the Section Materials for Energy Applications)
Advances in Nanomaterials and Nanocomposites for Catalytic Applications
edited by
submission deadline 20 Jan 2026 | 4 articles | Viewed by 4105 | Submission Open
Keywords: nanomaterials; nanocomposites; nanocatalysts; catalytic performance; pollutant degradation; energy
(This special issue belongs to the Section Hybrid and Composite Crystalline Materials)
Metal Oxide-Based Nanomaterials: Advances in Synthesis, Characterization, and Applications submission deadline 20 Jan 2026 | 1 articles | Viewed by 3512 | 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)
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