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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Advanced Research in Lithium-Ion Battery Materials
edited by
submission deadline 31 May 2026 | Viewed by 143 | Submission Open
Keywords: lithium metal anodes; electrolyte design solid-state batteries; cathode stabilization; novel characterization methodologies
(This special issue belongs to the Section Materials for Energy Applications)
Advances in Scintillators: Luminescence Properties and Applications submission deadline 11 Jun 2026 | Viewed by 164 | Submission Open
Keywords: scintillator crystals; inorganic scintillators; co-doped scintillators; mixed scintillators; hybrid scintillator materials (inorganic/organic); medical imaging; nuclear imaging detectors
Properties of Transition Metals and Their Compounds at Extreme Conditions (2nd Edition) submission deadline 15 Jun 2026 | 7 articles | Viewed by 16466 | Submission Open
Keywords: extreme conditions research; phase transitions; structural; electronic and magnetic properties; textural evolution; phase diagrams modelling and characterisation; new materials; equation of state; melting curves; symmetry-breaking
(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 Jun 2026 | 3 articles | Viewed by 3361 | 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)
Metal Coordination Complexes for Optical and Chirooptical Applications submission deadline 15 Jun 2026 | Viewed by 268 | Submission Open
Keywords: chirality; supramolecular chemistry; computational chemistry; metal coordination complexes; X-ray characterization
Fatigue and Fracture of Crystalline Metal Structures
edited by Xiangnan Pan and
submission deadline 20 Jun 2026 | 10 articles | Viewed by 16976 | 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)
Recent Research on Electronic Materials and Packaging Technology
edited by , Jinguo Ge and Jing Liu
submission deadline 20 Jun 2026 | 2 articles | Viewed by 2802 | 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)
Crystal Structure and Characterization of Minerals and Related Nanomaterials
edited by
submission deadline 20 Jun 2026 | 2 articles | Viewed by 1822 | 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)
Functional Acoustic Metamaterials
edited by
submission deadline 20 Jun 2026 | 1 articles | Viewed by 1722 | Submission Open
Keywords: anisotropy; acoustic(s); metamaterial; metasurface; cloak; stealth; supersonic(s); ultrasonic(s); off-diagonal element
Advances and Perspectives in Noble Metal Nanoparticles submission deadline 20 Jun 2026 | 2 articles | Viewed by 1660 | Submission Open
Keywords: nanomaterials; nanoparticles; noble metal; AuNPs; AgNPs; PtNPs; platinum group metals; sensing; catalysis; nanomedicine; bioactivity
(This special issue belongs to the Section Hybrid and Composite Crystalline Materials)
Thin Film Materials for Sensors
edited by , , Xue Qi and
submission deadline 20 Jun 2026 | Viewed by 125 | Submission Open
Keywords: thin film; sensors; flexible temperature; temperature measurement; temperature-sensitive materials
(This special issue belongs to the Section Inorganic Crystalline Materials)
Solid-State Batteries: Materials Design and Optimization
edited by Sijie Liu and
submission deadline 20 Jun 2026 | Viewed by 106 | Submission Open
Keywords: solid-state batteries; crystalline materials; electrode materials; solid electrolytes; interface engineering; cell design; energy storage; lithium-ion batteries; thermal stability; ionic conductivity
(This special issue belongs to the Section Materials for Energy Applications)
Preparation and Performance Research of Piezoelectric Ceramics
edited by and Yongcheng Zhang
submission deadline 20 Jun 2026 | Viewed by 84 | Submission Open
Keywords: piezoelectric ceramics; ferroelectric materials; lead-free piezoelectrics; material synthesis; sintering; structure-property relationships; electromechanical properties; actuators and sensors
(This special issue belongs to the Section Polycrystalline Ceramics)
Novel Functional Crystalline Materials for Energy Conversion and Sensing submission deadline 20 Jun 2026 | Viewed by 67 | Submission Open
Keywords: functional crystalline materials; energy conversion; sensing materials; photovoltaic and photocatalysis systems; thermoelectric and thermionic materials; piezoelectric crystals; crystal growth and design; low-dimensional crystalline systems; hybrid crystalline materials; computational materials science
(This special issue belongs to the Section Inorganic Crystalline Materials)
Physical and Chemical Nature of Cemented Carbides submission deadline 20 Jun 2026 | Viewed by 57 | Submission Open
Keywords: high-entropy alloys (HEAs); cemented carbides; mechanical milling; sintering techniques (SPS/HIP); microstructural characterization
(This special issue belongs to the Section Crystalline Metals and Alloys)
Electrode Materials in Lithium-Ion Batteries
edited by Zhongren Zhou
submission deadline 25 Jun 2026 | 2 articles | Viewed by 3694 | 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)
Modified Semiconductors: Synthesis, Structure and Advanced Applications
edited by Nivaldo Freire Andrade Neto
submission deadline 25 Jun 2026 | Viewed by 159 | Submission Open
Keywords: nanomaterials and nanotechnology; semiconductors; photocatalytic applications; electrochemical applications; crystallography; spectroscopy
(This special issue belongs to the Section Inorganic Crystalline Materials)
Recent Research on Piezoelectric Ceramics
edited by Nengneng Luo, , Xudong Qi, Linjing Liu, and Kai Li
submission deadline 29 Jun 2026 | Viewed by 102 | Submission Open
Keywords: piezoelectric ceramics; manufacture technologies; piezoelectricity; defect; grain
(This special issue belongs to the Section Polycrystalline Ceramics)
Co-Crystals and Polymorphic Transition in Energetic Materials
edited by , and
submission deadline 30 Jun 2026 | 5 articles | Viewed by 21686 | Submission Open
Keywords: energetic co-crystals; crystal phases control; polymorphic transition inhibition; crystal structure prediction
(This special issue belongs to the Section Crystal Engineering)
Metal–Organic Complexes for Synthesis
edited by and
submission deadline 30 Jun 2026 | Viewed by 133 | 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)
Thermal Coatings: Properties and Applications
edited by Dorin Luca and
submission deadline 30 Jun 2026 | Viewed by 105 | Submission Open
Keywords: flame spraying; high-velocity oxygen fuel; high-velocity air fuel; detonation gun spraying; arc spraying; plasma jet deposition
(This special issue belongs to the Section Crystalline Metals and Alloys)
MXenes: From Synthesis to Applications
edited by and
submission deadline 30 Jun 2026 | Viewed by 80 | Submission Open
Keywords: MXenes; two-dimensional materials; surface engineering; energy storage and conversion; electromagnetic interference shielding; terahertz absorption
(This special issue belongs to the Section Inorganic Crystalline Materials)
Advanced Research on Ferroelectric Materials
edited by Tianyu Li and
submission deadline 10 Jul 2026 | Viewed by 44 | Submission Open
Keywords: ferroelectrics; dielectrics; piezoelectrics; polarization; ferroelectric domain; lattice structure; electronic structure; thin film; ceramic; device
(This special issue belongs to the Section Inorganic Crystalline Materials)
Metal Complexes: Synthesis, Structure, and Biological Activity
edited by and Jovana V. Bogojeski
submission deadline 10 Jul 2026 | Viewed by 37 | Submission Open
Keywords: coordination compounds; transition metal complexes; N-; O-; S-donor ligands; spectroscopic characterization; X-ray crystallography / crystal structure; thermodynamic and kinetic studies; stability and reactivity; DNA and protein interactions; cytotoxicity and antitumor activity; antimicrobial activity
(This special issue belongs to the Section Crystal Engineering)
Key Crystal Materials for Optoelectronic Devices: Structure Regulation, Performance Optimization, and Device Applications
edited by Penghui He and
submission deadline 10 Jul 2026 | Viewed by 32 | Submission Open
Keywords: crystal growth and defect engineering; optoelectronic property tuning; structure– performance relationships; high-efficiency photonic devices; emerging crystalline materials
(This special issue belongs to the Section Inorganic Crystalline Materials)
Research Progress of Photoluminescent Materials
edited by Lei Han
submission deadline 15 Jul 2026 | 5 articles | Viewed by 8889 | Submission Open
Keywords: photoluminescence; luminescent materials; optoelectronic devices; advanced photonic applications; optoelectronics and photonics
(This special issue belongs to the Section Inorganic Crystalline Materials)
Graphene-Related and Graphene-Like Reinforcements in Composites: Manufacturing and Applications
edited by and Silvia Vesco
submission deadline 15 Jul 2026 | Viewed by 342 | Submission Open
Keywords: two-dimensional materials; polymer composites; metal matrix composites; coatings; particle reinforcement; green manufacturing; lightweighting; wear resistance; mechanical performances; conductivity
Microstructure Analysis, Phase Composition and Properties of Metal submission deadline 20 Jul 2026 | 1 articles | Viewed by 184 | Submission Open
Keywords: advanced characterization of metallic alloy microstructures (SEM; TEM; EBSD; XRD; etc.); phase transformations and kinetics in metals; relationships between microstructural and mechanical properties; heat treatment; thermomechanical processing; and surface modification; modeling and simulation of microstructural evolution; correlation of crystal structure and anisotropy with physical properties; metallic behavior under extreme environments (e.g.; cryogenic; high temperature; and corrosive); novel alloying concepts and high-performance steel grades (e.g.; AHSS; TRIP; TWIP; and maraging)
(This special issue belongs to the Section Crystalline Metals and Alloys)
Recent Advances in Photocatalytic Material
edited by Yingchun Li and
submission deadline 20 Jul 2026 | Viewed by 105 | Submission Open
Keywords: photocatalyst; photocatalysis; photocatalytic reduction of carbon dioxide; photocatalytic splitting water; photocatalytic degradation; photocatalytic self-cleaning
(This special issue belongs to the Section Materials for Energy Applications)
Synthesis and Characterization of Ceramics and Ceramic-Based Composites submission deadline 20 Jul 2026 | Viewed by 102 | Submission Open
Keywords: ceramics; crystalline structure; characterization methods; sintering; microstructure; ceramic-based composites
(This special issue belongs to the Section Polycrystalline Ceramics)
Crystallographic and Molecular Approaches in Drug Design and Development
edited by , Nada Kheira Sebbar and Riham Sghyar
submission deadline 20 Jul 2026 | Viewed by 28 | Submission Open
Keywords: organic synthesis; medicinal chemistry; bioactive organic compounds; structure– activity relationships; molecular design; solid-state properties; QSAR/QSPR
(This special issue belongs to the Section Biomolecular Crystals)
In Situ Study of Mineralogy, Gemology, and Geochemistry and Advances in Gem Resource Exploration
edited by Ying Guo and
submission deadline 30 Jul 2026 | Viewed by 142 | Submission Open
Keywords: crystal in situ; mineral crystallography; gemological quality evaluation; geochronology of gemstones; geological setting; geographic origin; gemstone characterization; genesis of gemstones; museum-collected mineral samples
(This special issue belongs to the Section Mineralogical Crystallography and Biomineralization)
Design and Development of Silicon Heterostructures for Electronics and Photonics
edited by Abel Garzón Román, Carlos Zúñiga Islas, Sergio Alberto Gamboa Sánchez and
submission deadline 31 Jul 2026 | Viewed by 94 | Submission Open
Keywords: crystals; semiconductors; superconductors; characterization techniques; heterostructures; electronics; and photonics application; organic or inorganic materials; growth; deposit; experimental or computational results
(This special issue belongs to the Section Materials for Energy Applications)
Electron Microscopy of Semiconductor and Magnetic Materials
edited by Sangmoon Yoon
submission deadline 31 Jul 2026 | Viewed by 24 | Submission Open
Keywords: electron microscopy; semiconductor materials; magnetic materials; structure– property relationships; in situ/operando characterization
(This special issue belongs to the Section Inorganic Crystalline Materials)
Recent Advances in Scintillator Materials
edited by
submission deadline 20 Aug 2026 | 1 articles | Viewed by 1375 | Submission Open
Keywords: scintillators; crystals; films; ceramics; nanopowders; melt growth; liquid-phase epitaxy; and solid-state reactions; luminescence; energy transfer processes; defects; dopants
(This special issue belongs to the Section Inorganic Crystalline Materials)
Research on Liquid Crystal Materials and Optical Devices submission deadline 20 Aug 2026 | Viewed by 212 | Submission Open
Keywords: columnar liquid crystals; self-organizing; optical devices; planar and homeotropic alignment; organic electronics; semiconducting nanoparticles; solar cells; oleds; transistors; displays
(This special issue belongs to the Section Liquid Crystals)
Recent Advances in Graphene and Other Two-Dimensional Materials (2nd Edition) submission deadline 20 Aug 2026 | Viewed by 116 | Submission Open
Keywords: two-dimensional materials; two-dimensional material based membranes; graphene; graphene oxide; transition metal dichalcogenides (TMDCs); graphene-based composites; two-dimensional 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)
Graphene-Based Nanocomposites
edited by and Tien-Li Chang
submission deadline 20 Aug 2026 | Viewed by 110 | Submission Open
Keywords: graphene nanocomposites; 2D materials; functionalization and defect engineering; laser/photonic processing; additive manufacturing; flexible/wearable sensors; energy storage and conversion; electro/photocatalysis; in situ/operando characterization; machine learning guided materials design
(This special issue belongs to the Section Polycrystalline Ceramics)
Crystallography of Enzymes (2nd Edition)
edited by and
submission deadline 20 Aug 2026 | Viewed by 100 | Submission Open
Keywords: enzyme structure and function; X-ray and serial crystallography; de novo enzyme design; ancestral reconstruction; protein engineering; catalytic mechanism; structural dynamics; substrate and inhibitor interactions; computational modeling
(This special issue belongs to the Section Biomolecular Crystals)
Crystallization and Precipitation in Life-Science, (Bio)polymer and Recycling Industries
edited by , and Vico Tenberg
submission deadline 20 Aug 2026 | Viewed by 67 | Submission Open
Keywords: phase equilibria; recycling processes; circular economy; biopolymer processing and valorization; sustainable process engineering; innovative crystallization and precipitation process concepts; industrial applications
(This special issue belongs to the Section Industrial Crystallization)
Perovskite Materials: Structure, Properties and Applications
edited by Xiangqian Shen, Hua Zhou and
submission deadline 20 Aug 2026 | Viewed by 35 | Submission Open
Keywords: perovskite photoelectric devices; material engineering; scalable manufacturing; clean energy; environmental sustainability
(This special issue belongs to the Section Materials for Energy Applications)
Modern Gem Crystals: Synthesis, Characterization, Genesis and Intelligent Analysis
edited by , and
submission deadline 31 Aug 2026 | Viewed by 165 | Submission Open
Keywords: gemology; mineralogy; geographic-origin determination; spectroscopy; synthetic gemstones; treatment detection; artificial intelligence (AI) in gemology; digitalization; non-destructive testing
(This special issue belongs to the Section Mineralogical Crystallography and Biomineralization)
Microstructure and Properties of Steel Materials
edited by , , Qizhe Ye and
submission deadline 31 Aug 2026 | Viewed by 126 | Submission Open
Keywords: steel; microstructure; phase transformation; mechanical properties; corrosion; hydrogen embrittlement; materials processing; additive manufacturing; machine learning
(This special issue belongs to the Section Crystalline Metals and Alloys)
Functional Nanomaterials for Electrochemical Sensing and Energy Storage submission deadline 31 Aug 2026 | Viewed by 55 | Submission Open
Keywords: graphene-based materials; layered double hydroxide (LDH); conductive polymers; hybrid nanocomposites; electrochemical sensing; energy storage
(This special issue belongs to the Section Hybrid and Composite Crystalline Materials)
Synthesis and Crystal Structures of Novel Solid-State Materials and Their Applications
edited by and Patricia Barahona
submission deadline 10 Sep 2026 | Viewed by 13 | Submission Open
Keywords: solid-state synthesis; crystalline materials; structural characterization; structure– property relationships; application of solid-state materials
(This special issue belongs to the Section Inorganic Crystalline Materials)
Heterocyclic Compounds in Drug Discovery: Synthesis, X-Ray Crystal Structures, Applications and Computational Approaches submission deadline 20 Sep 2026 | Viewed by 157 | Submission Open
Keywords: heterocyclic compounds; synthetic methodologies; structural characterization; X-ray crystallography studies; biological properties; computational chemistry
(This special issue belongs to the Section Biomolecular Crystals)
Applications of Additive Manufacturing and Numerical Simulation in High-Performance Metallic Materials
edited by Yunwei Gui and
submission deadline 20 Oct 2026 | Viewed by 76 | Submission Open
Keywords: additive manufacturing; numerical simulation; high-performance metals; multi-physics modeling; experimental validation; process-microstructure-property relationships; topology optimization; residual stress; digital twin; powder bed fusion
(This special issue belongs to the Section Crystalline Metals and Alloys)
Applications of Crystalline Materials in Elastocaloric Devices submission deadline 31 Dec 2026 | Viewed by 93 | Submission Open
Keywords: elastocaloric; shape memory alloys; austenite– martensite transformations; solid-state cooling; solid-state heat pumping
(This special issue belongs to the Section Materials for Energy Applications)
Crystals: 15th Anniversary submission deadline 31 Dec 2026 | Viewed by 89 | Submission Open
Keywords: crystals; crystal growth; characterization techniques; crystalline; structure properties and applications of crystalline materials
Advances in Optoelectronic Materials
edited by Mourad Boutahir and El Mehdi El Khattabi
submission deadline 31 Dec 2026 | Viewed by 63 | Submission Open
Keywords: two-dimensional materials; DFT; CVD
(This special issue belongs to the Section Materials for Energy Applications)
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