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 Progress of Photoluminescent Materials
edited by Lei Han
submission deadline 20 Jun 2025 | 2 articles | Viewed by 1431 | Submission Open
Keywords: photoluminescence; luminescent materials; optoelectronic devices; advanced photonic applications; optoelectronics and photonics
(This special issue belongs to the Section Inorganic Crystalline Materials)
Recent Development and Research Trend of Laser Crystals
edited by Yan Wang
submission deadline 20 Jun 2025 | 1 articles | Viewed by 1134 | Submission Open
Keywords: laser crystals; nonlinear laser crystals; nonlinear optical crystals; scintillating crystals; spectroscopic analyses; crystal growth; crystal characterization of optical properties; luminescence; perovskite crystals
Research Progress of Crystalline Metamaterials submission deadline 20 Jun 2025 | 1 articles | Viewed by 1062 | Submission Open
Keywords: metamaterials; coding metamaterial; metadevices; cloaking; radar cross-section reduction; electromagnetic absorbtion reduction; imaging; sensing
(This special issue belongs to the Section Inorganic Crystalline Materials)
Advances in Glass-Ceramics
edited by and Janusz Partyka
submission deadline 20 Jun 2025 | 1 articles | Viewed by 476 | Submission Open
Keywords: glass-ceramics; polycrystalline materials; crystallization of glass; nucleation and crystal growth
(This special issue belongs to the Section Hybrid and Composite Crystalline Materials)
Recent Advancements in Graphene Nanomaterials
edited by Suman Chhetri, Subhasis Shit and Saikat Bolar
submission deadline 20 Jun 2025 | Viewed by 280 | Submission Open
Keywords: graphene nanomaterials; graphene nanoparticles; optoelectronics; emerging technologies; energy storage; biomedical applications; machine learning
Metamaterials: From Fundamentals to Applications—a New Era of Engineered Electromagnetic Materials
edited by and Abdolhamid Akbarzadeh Shafaroudi
submission deadline 20 Jun 2025 | Viewed by 233 | Submission Open
Keywords: metamaterials; space technologies; 5G and 6G communication; nonterrestrial networks (NTNs); reconfigurable intelligent surface (RiS)  ; Internet of Space (IoS); reflectarrays; beamforming antennas; solar systems
(This special issue belongs to the Section Inorganic Crystalline Materials)
Microstructures and Deformation Mechanisms of Magnesium Alloys submission deadline 20 Jun 2025 | Viewed by 226 | Submission Open
Keywords: magnesium alloys; crystallographic texture; microstructure; twinning; mechanical properties
(This special issue belongs to the Section Crystalline Metals and Alloys)
Development of Green Corrosion Inhibitors and Functional Anti-Corrosion Coatings
edited by Shan Wan
submission deadline 20 Jun 2025 | Viewed by 158 | Submission Open
Keywords: green corrosion inhibitors; functional anti-corrosion coatings; organic coatings; waterborne epoxy coatings; multifunctional coatings
(This special issue belongs to the Section Organic Crystalline Materials)
Intelligent Manufacturing and Application of Crystalline Porous Materials
edited by Peng Hu and Ruimeng Wang
submission deadline 20 Jun 2025 | Viewed by 97 | Submission Open
Keywords: intelligent manufacturing; crystalline porous design; automated production; separation and purification; CO2 removal; chemical engineering
(This special issue belongs to the Section Hybrid and Composite Crystalline Materials)
Fatigue and Fracture of Crystalline Metal Structures
edited by Xiangnan Pan and
submission deadline 25 Jun 2025 | 4 articles | Viewed by 4923 | 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)
Crystal Structure and Magnetic Properties of Intermetallics
edited by Xubo Liu
submission deadline 25 Jun 2025 | 1 articles | Viewed by 1230 | Submission Open
Keywords: crystal structure; electronic structure; magnetic structure; magnetic properties; magnetization; exchange interactions; magnetocrystalline anisotropy; magnetocaloric; magnetostrictive; magneto-optic; Heusler compounds; rare earth transition metal compounds
(This special issue belongs to the Section Materials for Energy Applications)
Advances in Materials for Sustainable Development submission deadline 25 Jun 2025 | Viewed by 473 | Submission Open
Keywords: crystalline materials; green synthesis; energy storage; renewable energy; sustainable electronics; circular economy; eco-friendly semiconductors; catalysis for CO2 reduction; recycling and upcycling; low-energy manufacturing; photovoltaic materials; fuel cells; nanocrystals; biodegradable materials; advanced catalysts
Research in Molecular Dynamics Simulation of Polymers
edited by
submission deadline 25 Jun 2025 | Viewed by 120 | Submission Open
Keywords: polymer simulations; multi-scale simulations; molecular dynamics; tool development; polymer physics
(This special issue belongs to the Section Macromolecular Crystals)
Research in Additively Manufactured Titanium Alloys
edited by Delun Gong and
submission deadline 25 Jun 2025 | Viewed by 107 | Submission Open
Keywords: additive manufacturing techniques for titanium alloys; mechanical properties of AM titanium alloys; microstructure/property relationships in AM titanium alloys
(This special issue belongs to the Section Crystalline Metals and Alloys)
Organic Photonics: Organic Optical Functional Materials and Devices
edited by Yaoxing Bian, Xiaoyu Shi and Junhua Tong
submission deadline 30 Jun 2025 | 4 articles | Viewed by 6355 | 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)
Recent Advances in the Mechanical Properties of Fiber Composite Materials
edited by Shouzheng Sun and Zhenyu Han
submission deadline 30 Jun 2025 | 3 articles | Viewed by 4156 | Submission Open
Keywords: resin-based composites; fiber-reinforced polymers; biocomposites  ; nanocomposites  ; manufacturing methods  ; process research  ; mechanical properties; natural fibers
(This special issue belongs to the Section Hybrid and Composite Crystalline Materials)
Metamaterials and Their Devices, Second Edition
edited by
submission deadline 30 Jun 2025 | 4 articles | Viewed by 2535 | 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)
Design and Synthesis of Functional Crystal Materials
edited by Lili Li
submission deadline 30 Jun 2025 | 2 articles | Viewed by 1536 | Submission Open
Keywords: crystal structure; synthesis and preparation of functional crystals; applications of functional crystals; theoretical design; electronic structure and optical properties; piezoelectric; semiconductor; nonlinear optical; and thermoelectric materials
(This special issue belongs to the Section Inorganic Crystalline Materials)
Nanoelectronics and Bioelectronics submission deadline 30 Jun 2025 | 1 articles | Viewed by 484 | Submission Open
Keywords: nano-biotechnology; nanoelectronics; nanofabrication; crystalline materials; biosensors; nanomedicine; nanotechnology; functional materials; materials synthesis; wearable sensors; medical diagnostics
Recent Advances in the Stabilization of Metal Halide Perovskites
edited by Virginia Carnevali, Mingyang Wei, Vladislav Sláma and Lorenzo Agosta
submission deadline 30 Jun 2025 | Viewed by 142 | Submission Open
Keywords: 3D/2D perovskites; perovskite nucleation; low-dimension perovskites; machine-learned interatomic potentials; Rb incorporation; Cl incorporation; electron transport layer; hole transport layer; interface passivation; wide-bandgap perovskites; solar cell stability
(This special issue belongs to the Section Materials for Energy Applications)
Advances in Solid Electrolytes for Solid-State Batteries
edited by Ruijie Ye and Daisuke Mori
submission deadline 30 Jun 2025 | Viewed by 141 | Submission Open
Keywords: solid electrolytes; solid-state batteries; synthesis and preparation methods; ceramic processing; inorganics– polymer composites; electrode– electrolyte interfaces; defect chemistry; solid-state ionics; ionic conduction; solid-state NMR; operando characterization
(This special issue belongs to the Section Materials for Energy Applications)
Research on the Preparation and Performance of Photocatalytic Materials
edited by Baoying Dai
submission deadline 30 Jun 2025 | Viewed by 131 | 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)
Advanced Materials for Thermoelectric Energy Conversion
edited by Zhenhong Dai and Yinchang Zhao
submission deadline 30 Jun 2025 | Viewed by 119 | Submission Open
Keywords: thermoelectric materials; density functional theory and first-principles calculations; dynamics of anharmonic lattices; phonon coherence effect; lattice heat transport and electronic transport
(This special issue belongs to the Section Materials for Energy Applications)
Lanthanide Coordination Complexes: Advances in Ligand Design, Structure, and Luminescent Applications
edited by Nawal Al-Rasbi
submission deadline 5 Jul 2025 | Viewed by 179 | 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)
Shape Memory Alloys: Recent Advances and Future Perspectives
edited by , Chong Gao and
submission deadline 10 Jul 2025 | 3 articles | Viewed by 5752 | Submission Open
Keywords: shape memory alloys; shape memory effect; smart materials; microstructures; mechanical properties; phase transformations; 3D/4D printing; grains; textures; programmed morphing
(This special issue belongs to the Section Crystalline Metals and Alloys)
Structure & Properties of Novel Ferroelectric Liquid Crystals
edited by Yuri Panarin
submission deadline 10 Jul 2025 | 1 articles | Viewed by 5243 | Submission Open
Keywords: ferroelectric smectic liquid crystals; bent-core liquid crystals; nematic liquid crystals; helix; dynamics; relaxation
(This special issue belongs to the Section Liquid Crystals)
Microstructure and Properties of Metals and Alloys
edited by Zhongquan Zhang, and Ze Chai
submission deadline 10 Jul 2025 | 6 articles | Viewed by 5065 | Submission Open
Keywords: metals/alloys; bulk materials; coatings; films; microstructure; phase; grain; interface; lattice; dislocation; vacancy; diffusion; mechanical property; strengthening; deformation; strain; electrical property; anti-corrosive property; magnetic property
(This special issue belongs to the Section Crystalline Metals and Alloys)
Structural and Characterization of Composite Materials
edited by , and Karolina Ewelina Mazur
submission deadline 10 Jul 2025 | 5 articles | Viewed by 4173 | Submission Open
Keywords: properties of composite materials; manufacturing considerations; reinforcements; matrix materials; polymer matrix composites; mechanical and physical properties of composites; polymer matrix composite applications; metal matrix composite applications; carbon matrix composite applications; ceramic matrix composite applications
(This special issue belongs to the Section Hybrid and Composite Crystalline Materials)
Advanced High-Strength Steel
edited by Binbin Wu, , Xiangyu Xu and
submission deadline 10 Jul 2025 | 4 articles | Viewed by 4138 | 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)
Structural and Mechanical Properties of Novel Mg Alloys
edited by Lei Xiao and Xinkai Ma
submission deadline 10 Jul 2025 | 1 articles | Viewed by 1333 | Submission Open
Keywords: As-cast and wrought Mg alloys; additive manufacturing of Mg alloys; microstructure– property characterizations; simulation and modeling; structure design; alloy development; strengthening and toughening mechanisms
(This special issue belongs to the Section Crystalline Metals and Alloys)
Single-Crystalline Composite Materials (Second Edition) submission deadline 10 Jul 2025 | 1 articles | Viewed by 1217 | Submission Open
Keywords: single crystals; composites; crystallization; structural defects; testing methods
(This special issue belongs to the Section Hybrid and Composite Crystalline Materials)
Growth, Structural Identification, and Characterization of Semiconductor Alloys and Low-Dimensional Heterostructures
edited by
submission deadline 10 Jul 2025 | 2 articles | Viewed by 1116 | 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)
Advances in High Performance Metal Materials: Preparation, Properties, and Applications
edited by Mingxing Ma, Cong Zhao and Zhixin Wang
submission deadline 10 Jul 2025 | 2 articles | Viewed by 1109 | Submission Open
Keywords: metals/alloys; coatings; nano materials; micro-nano structure; phase transformation; microstructure; mechanical properties; corrosion behavior; first-principles calculation; preparation and applications
(This special issue belongs to the Section Crystalline Metals and Alloys)
Graphene-Based Materials and Applications
edited by Lu Qi and
submission deadline 10 Jul 2025 | 1 articles | Viewed by 481 | Submission Open
Keywords: graphene-based materials; two-dimensional materials; crystal structure; synthesis and characterization techniques
(This special issue belongs to the Section Hybrid and Composite Crystalline Materials)
Research on Crystallization of Biomacromolecules
edited by Xiaoxi Yu and
submission deadline 10 Jul 2025 | Viewed by 143 | Submission Open
Keywords: biomolecular crystallization; biomineralization; biomacromolecule purification and extraction; new methodologies
(This special issue belongs to the Section Biomolecular Crystals)
Research on the Structural Evolution and Properties of High-Performance Coatings and Thin Films
edited by Jian Peng, Junjun Wang and
submission deadline 10 Jul 2025 | Viewed by 105 | Submission Open
Keywords: high-performance coatings; thin films; structural evolution; advanced fabrication techniques; computational material design
Reviews in Liquid Crystals submission deadline 15 Jul 2025 | 4 articles | Viewed by 11241 | Submission Open
Keywords: computer-aided molecular design; synthesis and characterization; the alignment of liquid crystals; macroscopic and microscopic properties; phase structure and phase transitions; electro- and thermooptical effects; display device architecture; polymeric and biological liquid crystals; the theory of liquid crystals; ferroelectric and antiferroelectric liquid crystals
(This special issue belongs to the Section Liquid Crystals)
Crystallization of High Performance Metallic Materials (2nd Edition)
edited by and
submission deadline 15 Jul 2025 | 6 articles | Viewed by 9335 | Submission Open
Keywords: solidification of steels and alloys; casting process; solid phase transformation; high-performance metallic materials; in-situ characterization; nucleation and growth in metals; inclusion/precipitate engineering in steels and alloys; slag and flux engineering; thermodynamics and kinetics of crystallization; process– structure– property correlation in alloys; simulations
(This special issue belongs to the Section Crystalline Metals and Alloys)
High-Performance Metallic Materials
edited by Yunwei Gui, Lingxiao Ouyang and Sanbao Lin
submission deadline 15 Jul 2025 | 4 articles | Viewed by 5631 | Submission Open
Keywords: superalloys; light metals; additive manufacturing; severe plastic deformation; computer simulations
(This special issue belongs to the Section Crystalline Metals and Alloys)
Crystallisation Advances submission deadline 15 Jul 2025 | 6 articles | Viewed by 2532 | Submission Open
Keywords: nucleation; crystal growth; industrial crystallisation; crystallisation processes
(This special issue belongs to the Section Industrial Crystallization)
New Insights into Perovskite Materials: From Fundamental Science to Applications
edited by Tengteng Li, Shiqi Li and
submission deadline 15 Jul 2025 | 1 articles | Viewed by 1797 | Submission Open
Keywords: perovskite materials; perovskite solar cells; perovskite light-emitting diodes; perovskite photodetectors; perovskite lasers; perovskite-based new theory; perovskite-based applications
(This special issue belongs to the Section Materials for Energy Applications)
Mechanical Properties and Friction Behavior of Metal Alloys and Their Composites
edited by Jingwen Qiu
submission deadline 15 Jul 2025 | 1 articles | Viewed by 332 | Submission Open
Keywords: mechanical properties; friction and wear; lubrication; steel; aluminum alloy; titanium alloy; magnesium alloy; high-entropy alloy; composites; EBSD; TEM; APT
(This special issue belongs to the Section Crystalline Metals and Alloys)
The Development and Applications of Femtosecond Lasers
edited by
submission deadline 15 Jul 2025 | Viewed by 233 | Submission Open
Keywords: femtosecond laser sources; ultrafast spectroscopy; electron and phonon dynamics; multiphoton imaging; nonlinear optical imaging; ultrafast all-optical signal processing; femtosecond laser irradiation and micromachining; laser-based surgery
Mechanical Properties of Microcrystalline Glass
edited by
submission deadline 16 Jul 2025 | 1 articles | Viewed by 1217 | Submission Open
Keywords: mechanical properties; crystalline glass; glass; glass-ceramic; hardness; crack resistance; fracture toughness; X-ray diffraction; optical properties; theoretical models
Advances in Functional Inorganic Materials Prepared by Wet Chemical Methods (Third Edition) submission deadline 20 Jul 2025 | 4 articles | Viewed by 5734 | Submission Open
Keywords: multifunctional materials; magnetic materials; ferroelectric materials; piezoelectric materials; optical materials; processing routes; ceramics
(This special issue belongs to the Section Inorganic Crystalline Materials)
Nanomaterials for Environmental and Solar Energy Applications
edited by Sofia Stefa and
submission deadline 20 Jul 2025 | 2 articles | Viewed by 3255 | Submission Open
Keywords: nanomaterial synthesis; physicochemical properties; band gap energy tuning; solar energy; environmental remediation; energy conversion; photocatalysis; thermochromic coatings; solar cells; batteries
(This special issue belongs to the Section Materials for Energy Applications)
Advanced Research of Silicon Photonics and Optoelectronics Devices
edited by Nicola Peserico and Martin Thomaschewski
submission deadline 20 Jul 2025 | 1 articles | Viewed by 2407 | Submission Open
Keywords: silicon photonics; optoelectronic devices; photonic integrated circuits; interconnect; optical computing; free-space communications; photonic integration; advanced materials for photonics
(This special issue belongs to the Section Materials for Energy Applications)
Research and Application of Photoelectrocatalytic Materials
edited by Yanming Fu, and Zili Ma
submission deadline 20 Jul 2025 | 2 articles | Viewed by 1981 | 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)
New Trends in Materials for Permanent Magnets submission deadline 20 Jul 2025 | 1 articles | Viewed by 1766 | Submission Open
Keywords: permanent magnet; magnetic materials; magnetic properties; maximum energy product; rare earth; nanocomposite; powders; melt-spun ribbons; recycling
(This special issue belongs to the Section Inorganic Crystalline Materials)
Optical Properties of Crystalline Semiconductors and Nanomaterials
edited by
submission deadline 20 Jul 2025 | 2 articles | Viewed by 1735 | Submission Open
Keywords: semiconductors; optoelectronics; quantum dots; nanoparticles; nanostructures; quantum materials; photoluminescence; photoelectric
(This special issue belongs to the Section Inorganic Crystalline Materials)
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