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 polices 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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Crystalline Materials: Polymorphism submission deadline 31 Jan 2025 | 11 articles | Viewed by 16017
Keywords: polymorphism; pharmaceuticals; crystallisation; structure– property relationships; phase transformations; supramolecular chemistry; crystallography
(This special issue belongs to the Section Crystal Engineering)
Crystallography of Enzymes
edited by and
submission deadline 31 Jan 2025 | 5 articles | Viewed by 8534
Keywords: enzyme; structure; function; X-ray crystallography; crystal; crystallization; catalytic mechanism; antagonist
(This special issue belongs to the Section Biomolecular Crystals)
Recent Advances in Zeolite Crystallization for Modern Applications
edited by and
submission deadline 31 Jan 2025 | 1 articles | Viewed by 1303
Keywords: crystallization of zeolites; novel structures of zeolite; synthesis of smart materials; environmental remediation; advanced applications of zeolites; energy storage; green synthesis; porous materials; in situ techniques
(This special issue belongs to the Section Mineralogical Crystallography and Biomineralization)
Advancements in High-Strength Silicon-Aided Steel and Their Phase Transformations submission deadline 1 Feb 2025 | Viewed by 379 | Submission Open
Keywords: bainitic transformation; steels; austempering; quench and partitioning; si-aided steels
(This special issue belongs to the Section Crystalline Metals and Alloys)
Crystal Structures and Applications of Perovskite Halides in Solar Cells
edited by Yutong Ren and
submission deadline 6 Feb 2025 | 2 articles | Viewed by 1967 | Submission Open
Keywords: crystal structures; perovskite halides; solar cells; X-ray diffraction; transmission electron microscopy; thin films; power conversion efficiency
Corrosion and Mechanical Performance of Magnesium Alloys
edited by , and Norbert Hort
submission deadline 10 Feb 2025 | 3 articles | Viewed by 7189 | 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)
Advanced High-Strength Steel
edited by Binbin Wu, , Xiangyu Xu and
submission deadline 10 Feb 2025 | 4 articles | Viewed by 3001 | Submission Open
Keywords: steel; phase transformations; mechanical properties; fatigue; precipitation; materials characterization; thermodynamic simulations; crystallography; materials processing; additive manufacturing
(This special issue belongs to the Section Crystalline Metals and Alloys)
Pharmaceutical and Biotechnological Applications of Protein Crystals
edited by and
submission deadline 10 Feb 2025 | Viewed by 357 | Submission Open
Keywords: protein crystallisation; drug discovery; drug design; drug delivery; crystallography; machine learning; biopharmaceutical manufacturing; crystallisation techniques; downstream processes
(This special issue belongs to the Section Biomolecular Crystals)
Microstructural Characterization and Property Analysis of Alloys
edited by Lei Wang
submission deadline 15 Feb 2025 | 4 articles | Viewed by 2823 | 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)
Crystal Structures and Magnetic Interactions of Magnetic Materials
edited by Alina Crisan
submission deadline 15 Feb 2025 | 1 articles | Viewed by 947 | Submission Open
Keywords: RE-free nanocomposite magnets; hard– soft exchange coupling; magnetic stability; structural phase transformation; L10 phase; ferromagnetism; antiferromagnetism; soft magnetic materials; hard magnets; magnetocaloric materials; functional magnetic materials; magnetocaloric; magnetoelastic; multiferroic materials
(This special issue belongs to the Section Inorganic Crystalline Materials)
Advanced Technologies for Protein Crystal Optimization and Delivery of Protein Crystals
edited by and Hévila Brognaro
submission deadline 15 Feb 2025 | Viewed by 304 | Submission Open
Keywords: distinct crystals growth; in-vivo crystallization; crystal nucleation and liquid dense protein clusters; crystal growth for neutron diffraction; external electrical and magnetic fields; microgravity crystallization; mass transport in crystallization; in situ analysis of crystals; in situ optimization of crystals; physicochemical characterization of crystals; scoring crystal suspensions; instrument and software development; crystal delivery for XFEL and synchrotron radiation sources
(This special issue belongs to the Section Biomolecular Crystals)
Electrically Active Defects: Studied by Junction Spectroscopy Techniques
edited by Ivana Capan
submission deadline 19 Feb 2025 | Viewed by 317 | Submission Open
Keywords: defects; deep levels; transient spectroscopy; semiconductors; Si; Ge; SiC; GaN; Ga2O3
(This special issue belongs to the Section Inorganic Crystalline Materials)
Materials and Devices Grown via Molecular Beam Epitaxy
edited by Daqian Guo, Wuyang Ren and Thorsten Hesjedal
submission deadline 20 Feb 2025 | 5 articles | Viewed by 6709 | Submission Open
Keywords: epitaxy growth; lattice-mismatch epitaxy; heterostructure; superlattice; characterization methods; semiconductor devices
Coordination Complexes with Bio-Based Ligands
edited by
submission deadline 20 Feb 2025 | 2 articles | Viewed by 5119 | Submission Open
Keywords: coordination chemistry; ligands; bio-based molecules; chemicals from biomass; biomolecules; green building blocks; metal complexes; coordination polymers; metal– organic materials; X-ray crystal structure determination
(This special issue belongs to the Section Macromolecular Crystals)
Microstructure and Properties of Intermetallic Compounds
edited by Zhongping Que and
submission deadline 20 Feb 2025 | 5 articles | Viewed by 4965 | Submission Open
Keywords: intermetallic; intermetallic phases and alloys; powder metallurgy; crystal structure; chemical bonding; microstructure characterization
(This special issue belongs to the Section Inorganic Crystalline Materials)
Protein Crystallography: The State of the Art
edited by and Santosh Panjikar
submission deadline 20 Feb 2025 | 4 articles | Viewed by 4785 | 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)
Advances in Microstructure and Plastic Deformation of High-Strength Steels
edited by
submission deadline 20 Feb 2025 | 3 articles | Viewed by 3146 | Submission Open
Keywords: microstructure of high-strength steels; hot working; cold working; plastic deformation; innovative methodology research; new technologies; thermomechanical treatment; physical and numerical simulation of plastic deformation; structure simulation after plastic deformation; structure and mechanical properties.
(This special issue belongs to the Section Crystalline Metals and Alloys)
Additive Manufacturing: From Fundamentals to Materials Performance and Applications
edited by Sankaranarayanan Seetharaman and
submission deadline 20 Feb 2025 | 1 articles | Viewed by 879 | Submission Open
Keywords: additive manufacturing; powder bed fusion; directed energy deposition; selective laser melting; electron beam melting; wire arc additive manufacturing; metal binder jetting; heat treatment; material characterization; feedstock modification; qualification; simulations; microstructure; mechanical properties; alloy systems and alloy development; next-generation 4D printing; innovation in processing strategies; innovation and advancement in powder production; microstructure and property correlation; numerical simulation; defect and failure analysis; industrialization of the process
(This special issue belongs to the Section Crystalline Metals and Alloys)
Research and Application of Photoelectrocatalytic Materials
edited by Yanming Fu, and Zili Ma
submission deadline 20 Feb 2025 | 1 articles | Viewed by 798 | 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)
Sustainable Approaches in Metal Manufacturing and Developing Durable Metallic Alloys
edited by
submission deadline 20 Feb 2025 | Viewed by 210 | Submission Open
Keywords: sustainable metal manufacturing; durable metallic alloys; eco-friendly manufacturing; waste reduction; energy-efficient processes; greenhouse gas emissions; corrosion resistance; mechanical properties; metal recycling; circular economy; advanced characterization techniques; microstructural analysis; compositional analysis; life cycle assessment (LCA); environmental impact
(This special issue belongs to the Section Crystalline Metals and Alloys)
Physical Mechanism of Welding of Metallic Materials (2nd Edition)
edited by and
submission deadline 20 Feb 2025 | Viewed by 192 | Submission Open
Keywords: welds and joints; welding physics; welding modelling and simulation; welding metallurgy; molten pool; solidification and crystallization; microstructure; mechanical properties
(This special issue belongs to the Section Crystalline Metals and Alloys)
Electrochemical & Photoelectrochemical Photocatalysts: From Fundamentals to Materials Performance
edited by
submission deadline 20 Feb 2025 | Viewed by 167 | 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)
Research on Scintillators
edited by Siqi Li and Zhi Yang
submission deadline 20 Feb 2025 | Viewed by 142 | 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)
Synthesis and Characterization of Nanostructural Electrode Materials submission deadline 25 Feb 2025 | 1 articles | Viewed by 16061 | Submission Open
Keywords: metal– ion batteries; cathode materials; anode materials; synthesis of electrode materials; characterization of electrode materials; storage materials; nanotechnology and rechargeable batteries
(This special issue belongs to the Section Materials for Energy Applications)
Synthesis, Characterization and Applications of Crystalline Electroconductive Polymers
edited by Rocco Carcione, , Giorgio Scordo and
submission deadline 25 Feb 2025 | 3 articles | Viewed by 3922 | 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)
Synthesis and Characterization of Oxide Nanoparticles submission deadline 25 Feb 2025 | 2 articles | Viewed by 3397 | Submission Open
Keywords: oxide nanoparticles elaboration; emerging nanostructured materials; morphostructural characterization of nanoparticles; optical applications of nanoparticles; nanostructured thin films; antibacterial properties
(This special issue belongs to the Section Inorganic Crystalline Materials)
Synthesis and Properties of Photocatalysts
edited by Sulakshana Shenoy and
submission deadline 25 Feb 2025 | 2 articles | Viewed by 2615 | Submission Open
Keywords: photocatalysts; synthesis; properties; band gap energy tuning; environmental remediation; energy conversion
(This special issue belongs to the Section Materials for Energy Applications)
Advances in Heavy-Rare-Earth-Free or Lean Permanent Magnets
edited by Chaochao Pan, Tao Jiang and Baozhi Cui
submission deadline 27 Feb 2025 | Viewed by 197 | Submission Open
Keywords: permanent magnets; NdFeB magnets; heavy-rare-earth-free or lean; magnetic properties; critical materials
(This special issue belongs to the Section Inorganic Crystalline Materials)
Advances in New Functional Biomaterials for Medical Applications, Second Edition submission deadline 28 Feb 2025 | 2 articles | Viewed by 2280 | 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 Computer-Aided Drug Design and Molecular Dynamics Simulations
edited by Xueping Hu, and Shaoqing Du
submission deadline 28 Feb 2025 | 1 articles | Viewed by 1042 | Submission Open
Keywords: computer-aided drug design; molecular dynamics simulations; biomolecular crystals; structure-based drug design; virtual screening; quantitative structure– activity relationship; free energy calculations; multiscale simulations; enhanced sampling techniques; protein– ligand interactions
(This special issue belongs to the Section Biomolecular Crystals)
Special Issue of the Professional Committee of Key Materials and Technology for Electronic Components (PC-KMTEC)
edited by Feng Shi, , , Guangzu Zhang, and
submission deadline 28 Feb 2025 | 1 articles | Viewed by 891 | Submission Open
Keywords: microwave dielectric ceramics; ferroelectric ceramics; piezoelectric ceramics; thermoelectric ceramics; pyroelectric ceramics; sensitive ceramics; transparent ceramics
(This special issue belongs to the Section Polycrystalline Ceramics)
Bioprocessing-Inspired Fabrication of Materials
edited by
submission deadline 28 Feb 2025 | Viewed by 105 | Submission Open
Keywords: bioprocessing-inspired fabrication; bioprocessing-inspired synthesis; structures and functions; biomineralization-inspired; photosynthesis-inspired; additive manufacturing; microscale additive manufacturing; nanoscale additive manufacturing; bioinspired materials; biostructures; bioproperties and bioperformance; enamel-like nanocomposites; calcium-based minerals; biomineralization of collagen fibrils; kinetics of mineral deposition; artificial mineralization; natural living organism-directed synthesis; protein- or organism-induced synthesis; physiological processes
(This special issue belongs to the Section Mineralogical Crystallography and Biomineralization)
Microstructure Evolution and Mechanical Properties of Steels
edited by and
submission deadline 1 Mar 2025 | 2 articles | Viewed by 1715 | Submission Open
Keywords: steel; microstructure; materials characterization; mechanical Properties; additive manufacturing; welding; casting; numerical simulation
(This special issue belongs to the Section Crystalline Metals and Alloys)
Prospective Research in Protein Crystallography
edited by Vicente Domínguez-Arca, Joana Ferreira and
submission deadline 1 Mar 2025 | Viewed by 157 | Submission Open
Keywords: protein crystallography; secondary structure; crystallization methods; computational modeling; molecular dynamics; structural biology; complementary techniques; structural data analysis
(This special issue belongs to the Section Biomolecular Crystals)
Rare Earths-Doped Materials (3rd Edition) submission deadline 10 Mar 2025 | 6 articles | Viewed by 7793 | Submission Open
Keywords: rare earth elements; single crystals; bulk crystals; nanocrystals; phosphors; composite materials; semiconductors; insulators
(This special issue belongs to the Section Inorganic Crystalline Materials)
Synthesis and Characterization of Ammonia Synthesis Catalysts
edited by Constantinos D. Zeinalipour-Yazdi
submission deadline 10 Mar 2025 | 2 articles | Viewed by 3329 | Submission Open
Keywords: ammonia synthesis; mechanism; DFT; screening; catalysis
(This special issue belongs to the Section Inorganic Crystalline Materials)
Welding and Joining of Metallic Materials: Microstructure and Mechanical Properties, 2nd Edition
edited by and Reza Beygi
submission deadline 10 Mar 2025 | 2 articles | Viewed by 2041 | 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)
Aggregation, Nucleation and Crystallization—Second Edition
edited by and Magdalena A. Załuska-Kotur
submission deadline 10 Mar 2025 | Viewed by 144 | Submission Open
Keywords: nucleation; aggregation; crystallization; growth modes; growth morphologies and the transitions between them
(This special issue belongs to the Section Industrial Crystallization)
Advances in Organic Semiconductors
edited by
submission deadline 14 Mar 2025 | 2 articles | Viewed by 3517 | Submission Open
Keywords: small organic molecules/polymeric semiconductors; flexible/stretchable semiconductors; device physics; opto-electronic devices; molecular doping
(This special issue belongs to the Section Organic Crystalline Materials)
Organic Optoelectronic Materials and Applications
edited by Junkai Liu and Bart Kahr
submission deadline 15 Mar 2025 | 1 articles | Viewed by 912 | Submission Open
Keywords: flexible optoelectronics; light-electricity interconversion; advanced device architectures; biocompatible probes; photo-driven theragnosis; crystal structure
(This special issue belongs to the Section Organic Crystalline Materials)
Polymorphism in Crystals (2nd Edition)
edited by
submission deadline 15 Mar 2025 | 1 articles | Viewed by 763 | Submission Open
Keywords: polymorphism; crystal engineering; crystal habit
(This special issue belongs to the Section Crystal Engineering)
State of Art of Excitonic Insulators and Topological Materials
edited by Selene Mor, and
submission deadline 15 Mar 2025 | Viewed by 418 | Submission Open
Keywords: inorganic crystal growth of new excitonic insulator candidates; layered semiconductors; 2D materials; electron– hole bilayers; electron correlations; collective modes; excitonic fluctuations and structural instabilities; photo-induced phenomena and non-equilibrium physics; steady-state and time-resolved ARPES; transient optical spectroscopy; (time-resolved) Raman spectroscopy; DFT calculations and mean-field theory
(This special issue belongs to the Section Inorganic Crystalline Materials)
Research on Electrolytes and Energy Storage Materials
edited by and Mengjie Chen
submission deadline 20 Mar 2025 | 5 articles | Viewed by 7436 | 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)
Synthesis, Crystal Structures and Hirshfeld Surface Analysis of Coordination Compounds (3rd Edition) submission deadline 20 Mar 2025 | 2 articles | Viewed by 3512 | Submission Open
Keywords: coordination complexes  ; synthesis  ; crystal and molecular structure  ; hirschfeld surface analysis; non-covalent interactions
(This special issue belongs to the Section Hybrid and Composite Crystalline Materials)
Novel Photoelectric Materials and Their Photophysical Processes
edited by Xianshao Zou and Wenping Yin
submission deadline 20 Mar 2025 | 2 articles | Viewed by 2243 | Submission Open
Keywords: optoelectronics; crystal structure; energy; perovskite; semiconductor; polymer; ultrafast spectroscopy; photon– matter interaction; photophysics and photochemistry; charge carrier dynamics.
(This special issue belongs to the Section Materials for Energy Applications)
Porous Ceramics and Their Composite Materials
edited by , and Xinxin Jin
submission deadline 20 Mar 2025 | 1 articles | Viewed by 2214 | Submission Open
Keywords: porous ceramics and composites; lightweight ceramics; porous geopolymer; ceramics for water purification; 3D-printed porous ceramics; sustainable ceramics derived from solid wastes; glass ceramic foams
(This special issue belongs to the Section Polycrystalline Ceramics)
Preparation and Properties of Aluminum Alloy Materials (2nd Edition)
edited by
submission deadline 20 Mar 2025 | 3 articles | Viewed by 2213 | Submission Open
Keywords: aluminum alloy; lightweight; microstructure; properties; materials design of AI alloys and composites; manufacturing process
(This special issue belongs to the Section Crystalline Metals and Alloys)
Crystalline Materials for Energy Conversion Applications in Solar Cells
edited by Eros Radicchi and Francesca Lo Presti
submission deadline 20 Mar 2025 | 1 articles | Viewed by 604 | Submission Open
Keywords: solar cells; up-conversion; down-conversion; down-shifting; cystalline materials
(This special issue belongs to the Section Materials for Energy Applications)
Recent Trends in Laser Cladding and Surface Alloying
edited by and Tai-Nan Lin
submission deadline 20 Mar 2025 | 1 articles | Viewed by 593 | Submission Open
Keywords: laser cladding; surface alloying; laser welding; carburizing; nitriding; physical vapor deposition (PVD); chemical vapor deposition (CVD); surface repairing
(This special issue belongs to the Section Crystalline Metals and Alloys)
Selected Papers from the 4th International Online Conference on Crystals submission deadline 20 Mar 2025 | Viewed by 447 | Submission Open
Keywords: liquid crystals; biomolecular crystals; crystal engineering; inorganic crystalline materials; organic crystalline materials; hybrid and composite crystalline materials; materials for energy applications; crystalline metals and alloys
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