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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The Design and Synthesis of Advanced Energy Catalytic Materials
edited by Wanliang Yang
submission deadline 20 Mar 2025 | Viewed by 25 | Submission Open
Keywords: energy catalytic materials; nanostructured catalyst; computational modelin; single-atom catalysts; metal– organic frameworks (MOFs); 2D materials
(This special issue belongs to the Section Materials for Energy Applications)
Processing of Stainless Steels
edited by
submission deadline 25 Mar 2025 | Viewed by 6 | Submission Open
Keywords: stainless steel; microstructure; mechanical properties; hot working; deformation; corrosion resistance
(This special issue belongs to the Section Crystalline Metals and Alloys)
Metal Oxides: Crystal Structure, Synthesis and Characterization (2nd Edition) submission deadline 31 Mar 2025 | 1 articles | Viewed by 431 | Submission Open
Keywords: metal oxides; material characterization; synthesis; crystal structure; nanomaterials; applications
(This special issue belongs to the Section Inorganic Crystalline Materials)
Flexible and Wearable Electronic Sensors and Energy Storage Devices
edited by and Panpan Zhang
submission deadline 31 Mar 2025 | Viewed by 98 | Submission Open
Keywords: 2D materials; printable technology; smart textiles; electronic sensors; flexible devices; supercapacitors; rechargeable batteries
(This special issue belongs to the Section Materials for Energy Applications)
Metallic Crystals: Nucleation, Growth and Microstructural Characterisation
edited by
submission deadline 31 Mar 2025 | Viewed by 75 | Submission Open
Keywords: alloys; metals; metallic crystals; nucleation; crystal growth; solidification; microstructural evolution; microstructural characterization; precipitation; heat treatment
(This special issue belongs to the Section Crystalline Metals and Alloys)
Advanced Technologies in Graphene-Based Materials (2nd Edition) submission deadline 31 Mar 2025 | Viewed by 63 | Submission Open
Keywords: graphene and its related materials; reduced graphene oxide; carbon nanotubes; nanocomposites; synthesis and preparation; functionalization; surface characterization; coatings; (bio)sensors; energy storage devices
(This special issue belongs to the Section Hybrid and Composite Crystalline Materials)
Synthesis and Application of Nanocomposite Materials submission deadline 10 Apr 2025 | 3 articles | Viewed by 3575 | Submission Open
Keywords: nanocomposites; nanostructures; multifunctional; carbon nanoparticles; metallic nanoparticles; sensing; strain sensors; mechanical properties; electrical properties; smart robotics; human motion monitoring; structural health monitoring; batteries; supercapacitors
Recent Advances in Photocatalysts Materials
edited by Kristina Mojsilovic and
submission deadline 15 Apr 2025 | Viewed by 17 | 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)
Processing, Structure and Properties of Metal Matrix Composites
edited by
submission deadline 17 Apr 2025 | Viewed by 47 | Submission Open
Keywords: synthesis process; chemical properties; interface; physiscal properties; dispersion
(This special issue belongs to the Section Crystalline Metals and Alloys)
New Insights into Optical Crystals: From Fundamentals to Materials Performance
edited by Conggang Li and
submission deadline 20 Apr 2025 | Viewed by 115 | Submission Open
Keywords: material design; optical crystals; synthesis methods; crystal growth; optical properties; structure– properties relationship
(This special issue belongs to the Section Materials for Energy Applications)
Additive Manufacturing: Experiments, Simulations and Data-Driven Modelling (Second Edition) submission deadline 20 Apr 2025 | Viewed by 106 | Submission Open
Keywords: additive manufacturing; metals; ceramics; ceramic-reinforced metal matrix composites; experiments; simulations; machine learning; process parameters optimization; smartification of additive manufacturing
(This special issue belongs to the Section Crystalline Metals and Alloys)
New Horizons in Metal–Organic Frameworks: Fundamentals, Characterization, and Molecular Modeling submission deadline 20 Apr 2025 | Viewed by 81 | 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)
Synthesis, Characterization and Application of Novel Nanoparticles
edited by , , Bedasa Abdisa Gonfa, , and Andebet Gedamu Tamirat
submission deadline 30 Apr 2025 | 5 articles | Viewed by 11112 | Submission Open
Keywords: nanoparticles; catalysis; biomedical; environmental; green synthesis; plant-mediated synthesis; renewable energy; environmental protection
(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 30 Apr 2025 | 1 articles | Viewed by 1341 | 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)
Microstructure and Mechanical Properties of Austenitic Stainless Steels: 2nd Edition
edited by and
submission deadline 30 Apr 2025 | Viewed by 26 | Submission Open
Keywords: austenitic stainless steel; microstructure characterization; mechanical properties; alloying design; microstructural control; novel fabrication process routes; microstructural evolution; deformation mechanism; service life prediction evaluation
(This special issue belongs to the Section Crystalline Metals and Alloys)
Catalyst Materials for Waste Treatment
edited by Hassan Shokry, and Mahmoud Samy
submission deadline 1 May 2025 | 1 articles | Viewed by 928 | Submission Open
Keywords: advanced oxidation processes; degradation of emerging pollutants; industrial waste treatment; nanomaterials; plastic waste; photo-degradation; photo-catalysis
(This special issue belongs to the Section Inorganic Crystalline Materials)
Research and Applications of Light-Emitting Diodes
edited by , Beibei Xu and Zaifa Du
submission deadline 20 May 2025 | Viewed by 244 | Submission Open
Keywords: LEDs; lighting; displays; AR/VR; eye-tracking; color conversion materials
(This special issue belongs to the Section Materials for Energy Applications)
New Insights in Electro- and Photo-Catalytic Performance of Biomimetics Composites submission deadline 20 May 2025 | Viewed by 217 | 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)
Molecular Simulations and Dynamics Analysis of Polymers submission deadline 20 May 2025 | Viewed by 157 | Submission Open
Keywords: molecular simulations; polymer dynamics; computational chemistry; molecular dynamics; polymer conformation; monte carlo simulations; polymer materials; phase behavior; thermal transitions; materials science
(This special issue belongs to the Section Hybrid and Composite Crystalline Materials)
Research and Applications of Acoustic Metamaterials
edited by Qiujiao Du and
submission deadline 20 May 2025 | Viewed by 73 | Submission Open
Keywords: acoustic metamaterial; seismic metamaterial; metasurface; noise and vibration isolation; topology; machine learning; nonlinearity; intelligent metamaterial; bound state in the continuum; cloaking
(This special issue belongs to the Section Inorganic Crystalline Materials)
New Insights into Coating Materials: From Fundamentals to Material Performance
edited by Haibin Zhang
submission deadline 20 May 2025 | Viewed by 30 | Submission Open
Keywords: coatings; coating materials; ceramic coatings; oxidation resistance; oxidation-protective coating; anti-corrosion coatings; metal surface properties; metal surface engineering; metal damage protection; surface modification; surface technology; wear-resistant; corrosion protection coating; composite coating; microstructure and performance; hardness; mechanical properties
(This special issue belongs to the Section Inorganic Crystalline Materials)
Microstructure and Deformation of Advanced Alloys submission deadline 29 May 2025 | 12 articles | Viewed by 11711 | Submission Open
Keywords: metals and alloys; defects; texture; microstructure; deformation; aging; properties; hot-working; cold-working
(This special issue belongs to the Section Crystalline Metals and Alloys)
Superconductors and Magnetic Materials
edited by , Elkin Ferney Rodriguez Velandia and
submission deadline 31 May 2025 | 4 articles | Viewed by 4142 | Submission Open
Keywords: high-electromagnetic-power density materials; superconductor compounds and nanomaterials; permanent magnets; high magnetic permeability materials; strong magnets; magnetic levitation or propulsion; magnetic shielding  ; magnetic resonance; magnetic particle acceleration or collision; magnetic confinement fusion; superconducting magnetic energy storage; rare-earth free magnetic materials; superconducting quantum interference devices; high-sensing magnetic-field detection
(This special issue belongs to the Section Inorganic Crystalline Materials)
Structural Studies in Drug Discovery and Development: From the Lead to the Pharmaceutical Form, 2nd Edition submission deadline 31 May 2025 | Viewed by 26 | Submission Open
Keywords: single-crystal X-ray diffraction; structural analysis; spectroscopic methods; spectrometric methods; pharmaceutical compounds; biologically active molecules; organic molecules; metal complexes; synthetic intermediates; atropisomers; absolute configuration; asymmetric synthesis; catalysis; mechanistic investigations; polymorphism; co-crystals; solubility
(This special issue belongs to the Section Crystal Engineering)
Liquid Crystal Photonics and Emerging Displays
edited by , , Man-Chun Tseng and Fion Sze Yan Yeung
submission deadline 1 Jun 2025 | Viewed by 107 | Submission Open
Keywords: liquid crystal photonics; liquid crystal displays; display technology; liquid crystal application; display application
(This special issue belongs to the Section Liquid Crystals)
Hybrid Materials for Energy Storage and Conversion submission deadline 10 Jun 2025 | 2 articles | Viewed by 1586 | Submission Open
Keywords: hybrid structure; materials engineering; pH; electrochemical  ; energy storage
(This special issue belongs to the Section Materials for Energy Applications)
Research Progress of Crystalline Metamaterials submission deadline 20 Jun 2025 | Viewed by 155 | 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)
Recent Advancements in Graphene Nanomaterials
edited by Suman Chhetri, Subhasis Shit and Saikat Bolar
submission deadline 20 Jun 2025 | Viewed by 106 | Submission Open
Keywords: graphene nanomaterials; graphene nanoparticles; optoelectronics; emerging technologies; energy storage; biomedical applications; machine learning
Recent Advances in Microstructure and Properties of Metals and Alloys submission deadline 20 Jun 2025 | Viewed by 47 | Submission Open
Keywords: microstructure characterization; phase transformations; material properties; mechanical properties; corrosion resistance; manufacturing technology
(This special issue belongs to the Section Crystalline Metals and Alloys)
Microstructures and Deformation Mechanisms of Magnesium Alloys submission deadline 20 Jun 2025 | Viewed by 42 | Submission Open
Keywords: magnesium alloys; crystallographic texture; microstructure; twinning; mechanical properties
(This special issue belongs to the Section Crystalline Metals and Alloys)
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 38 | 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)
Development of Green Corrosion Inhibitors and Functional Anti-corrosion Coatings
edited by Shan Wan
submission deadline 20 Jun 2025 | Viewed by 22 | 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)
Advances in Glass-Ceramics
edited by and Janusz Partyka
submission deadline 20 Jun 2025 | 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 Advances in the Mechanical Properties of Fiber Composite Materials
edited by Shouzheng Sun and Zhenyu Han
submission deadline 30 Jun 2025 | 2 articles | Viewed by 2410 | 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)
Organic Photonics: Organic Optical Functional Materials and Devices
edited by Yaoxing Bian, Xiaoyu Shi and Junhua Tong
submission deadline 30 Jun 2025 | Viewed by 218 | 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)
Structural and Characterization of Composite Materials
edited by , and Karolina Ewelina Mazur
submission deadline 10 Jul 2025 | 1 articles | Viewed by 495 | 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)
Metal Oxide Nanocomposites and Thin Films: Fabrication, Properties, and Applications submission deadline 20 Jul 2025 | Viewed by 85 | Submission Open
Keywords: metal oxide nanocomposites; metal oxide thin films; nanostructures; solution-based processes; sustainable materials; device physics; flexible electronics transparent electronics
Optical Properties of Crystalline Semiconductors and Nanomaterials
edited by
submission deadline 20 Jul 2025 | Viewed by 27 | Submission Open
Keywords: semiconductors; optoelectronics; quantum dots; nanoparticles; nanostructures; quantum materials; photoluminescence; photoelectric
(This special issue belongs to the Section Inorganic Crystalline Materials)
Synthesis and Catalytic Performance of Transition Metal Catalysts
edited by Keke Zhi and
submission deadline 20 Jul 2025 | Submission Open
Keywords: transition metal catalysts; metal– organic frameworks; metal oxide; electrocatalysis; doped composites; catalytic performance
(This special issue belongs to the Section Materials for Energy Applications)
II-VI and III-V Semiconductors for Optoelectronic Devices
edited by and Ziyuan Li
submission deadline 30 Jul 2025 | Viewed by 11 | Submission Open
Keywords: II-VI semiconductors; III-V semiconductors; solid-state physics; optics; optoelectronics; lasers; detectors; photovoltaic solar cells; ultrafast carrier dynamics
(This special issue belongs to the Section Materials for Energy Applications)
Novel Crystalline Catalysts
edited by Lili Wan
submission deadline 31 Jul 2025 | Viewed by 101 | Submission Open
Keywords: synthesis of novel crystals; nanocrystal; nanocluster; single crystal; polycrystal; composite crystal; effect of crystal phase; crystal structure; exposed crystal phase or crystal defects on catalysis; green energy conversion; degradation of pollutant; green synthesis; structure activity relationship
(This special issue belongs to the Section Materials for Energy Applications)
Nonlinear Optical Properties and Applications of 2D Materials
edited by José Guadalupe Murillo-Ramírez and
submission deadline 20 Aug 2025 | 1 articles | Viewed by 527 | Submission Open
Keywords: monoatomic layers; graphene oxide; photonic materials; heterojunctions; thin films
(This special issue belongs to the Section Inorganic Crystalline Materials)
Crystal Growth of III–V Semiconductors
edited by Xin Wei and
submission deadline 30 Aug 2025 | Viewed by 126 | Submission Open
Keywords: epitaxy; MOCVD  ; MBE; III– V semiconductor
(This special issue belongs to the Section Inorganic Crystalline Materials)
Advanced Research of Graphene Oxide-Based Materials for Catalysis
edited by and Ivalina Trendafilova
submission deadline 31 Aug 2025 | Viewed by 475 | Submission Open
Keywords: synthesis or growth of graphene-based materials; characterization of graphene-based materials; theoretical models; graphene-based materials in energy applications; graphene-based materials in catalysis
(This special issue belongs to the Section Inorganic Crystalline Materials)
Microstructure and Characterization of Crystalline Materials submission deadline 10 Sep 2025 | Viewed by 73 | Submission Open
Keywords: metallic and composite materials; casting; AM; plastic working; SPD; microstructure evolution and characterization; plasticity; mechanical properties; destructive and nondestructive testing; computer simulations; expert systems
(This special issue belongs to the Section Crystalline Materials)
State-of-the-Art Liquid Crystals Research in Japan (2nd Edition) submission deadline 30 Sep 2025 | Viewed by 227 | Submission Open
Keywords: liquid crystals; blue phase; stimulus responsiveness; photoalignment control; molecular dynamics simulations; rheology; X-ray diffraction; luminescence; electrical conductivity
(This special issue belongs to the Section Liquid Crystals)
High-Tech Metals–Overview, Microstructure, Properties and Recyclability (2nd Edition) submission deadline 30 Sep 2025 | Viewed by 127 | Submission Open
Keywords: high-tech metals; microstructure; properties; material characterization; winning; recyclability
Exploring New Materials for the Transition to Sustainable Energy
edited by
submission deadline 29 Dec 2025 | Viewed by 116 | 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
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