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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Machine Learning for Material and Process Optimization in Additive Manufacturing submission deadline 20 Feb 2027 | 1 articles | Viewed by 2061 | Submission Open
Keywords: machine learning; additive manufacturing; process optimization; material design; artificial intelligence; material development; digital twins; process control; data-driven modeling; advanced manufacturing; sustainable manufacturing
Advanced Research on Ferroelectric Materials
edited by Tianyu Li and
submission deadline 20 Feb 2027 | 1 articles | Viewed by 1019 | 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)
Crystal Structure and Physical Properties of Functional Materials
edited by Shixin Jin, Wenyi Wang, and Zijian Wang
submission deadline 20 Feb 2027 | Viewed by 261 | Submission Open
Keywords: crystal materials; crystal structure; physical properties; advanced composite materials; nanomaterials; functional materials
(This special issue belongs to the Section Inorganic Crystalline Materials)
Photocatalytic and Electrocatalytic Properties and Mechanisms of Crystal Catalytic Materials
edited by , Shiwei Xie and
submission deadline 20 Feb 2027 | Viewed by 232 | Submission Open
Keywords: crystal catalytic materials; photocatalysis; electrocatalysis; catalytic mechanism; crystal structure; defect engineering; band structure regulation; DFT simulation; catalytic performance
(This special issue belongs to the Section Hybrid and Composite Crystalline Materials)
Advances in Photovoltaic Materials: Synthesis, Properties and Applications
edited by Yuancai Gong, Kunal J. Tiwari, Outman El Khouja, Ivan Caño Prades and
submission deadline 20 Feb 2027 | Viewed by 146 | Submission Open
Keywords: photovoltaic materials; thin-film solar cells; crystal growth and synthesis; defect engineering; interface and contact engineering; kesterite and chalcogenide semiconductors; emerging solar cell technologies
(This special issue belongs to the Section Inorganic Crystalline Materials)
Feature Papers on Liquid Crystals submission deadline 20 Feb 2027 | Viewed by 121 | Submission Open
Keywords: advanced display technologies; new liquid crystal photonics devices; new methods of liquid crystal alignment, including photoalignment and photopatterning; fast, high-resolution, low voltage ferroelectric liquid crystal devices; liquid crystal sensors
(This special issue belongs to the Section Liquid Crystals)
MXenes: From Synthesis to Applications
edited by and
submission deadline 25 Feb 2027 | Viewed by 430 | 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)
Recent Trends of Structure and Properties Modification in Metal/Alloys Additive Manufacturing
edited by , and Maciej Balcerzak
submission deadline 25 Feb 2027 | Viewed by 48 | Submission Open
Keywords: metal/alloys powders; metal/alloys additive manufacturing; computer simulations; solid and surface modification; destructive and non-destructive testing; structure; properties
(This special issue belongs to the Section Crystalline Metals and Alloys)
Mechanisms of Nucleation and Crystal Structure Selection in Pharmaceutical Crystallization
edited by Mengmeng Sun and Yu Liu
submission deadline 10 Mar 2027 | Viewed by 128 | Submission Open
Keywords: pharmaceutical crystallization; nucleation; polymorphism; co-crystal; molecular assembly
(This special issue belongs to the Section Industrial Crystallization)
Advanced High-Strength Steel, 2nd Edition
edited by Binbin Wu and
submission deadline 10 Mar 2027 | Viewed by 93 | Submission Open
Keywords: steel; phase transformations; mechanical properties; fatigue; precipitation; materials characterization; thermodynamic simulations; crystallography; materials processing; additive manufacturing; AI for steel
(This special issue belongs to the Section Crystalline Metals and Alloys)
Microstructure and Mechanical Behavior of Advanced High Strength Steels
edited by Mattia Franceschi
submission deadline 20 Mar 2027 | 3 articles | Viewed by 3017 | Submission Open
Keywords: AHSS; quench and partitioning; carbide free bainite; medium manganese steel; TRIP; austenite; bainitic transformation; tensile properties; fatigue; heat treatment
Perovskite Materials: Structure, Properties and Applications
edited by Xiangqian Shen, Hua Zhou and
submission deadline 20 Mar 2027 | 1 articles | Viewed by 1477 | 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)
Graphene-Based Nanocomposites
edited by and Tien-Li Chang
submission deadline 20 Mar 2027 | 1 articles | Viewed by 1061 | 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)
Research on Liquid Crystal Materials and Optical Devices submission deadline 20 Mar 2027 | 1 articles | Viewed by 1048 | 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)
Metal Complexes: Synthesis, Structure, and Biological Activity
edited by and Jovana V. Bogojeski
submission deadline 20 Mar 2027 | Viewed by 477 | 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)
Advanced Research in 2D Semiconductors
edited by Hua Yu
submission deadline 20 Mar 2027 | 1 articles | Viewed by 297 | Submission Open
Keywords: 2D materials; controlled synthesis; structural modulation; interlayer engineering; advanced characterization; data-driven material design
(This special issue belongs to the Section Inorganic Crystalline Materials)
Advances in Additive Manufacturing of Crystalline Materials
edited by Moshen Saboktakin Rizi and
submission deadline 20 Mar 2027 | Viewed by 250 | Submission Open
Keywords: additive manufacturing; 3D printing; powder bed fusion; directed energy deposition; crystalline materials; microstructure–property relationships; solidification; crystallographic texture; defect control; post-processing
(This special issue belongs to the Section Crystalline Metals and Alloys)
Crystal Structures and Electronic Properties Under High Pressure
edited by Zhiying Guo
submission deadline 20 Mar 2027 | Viewed by 244 | Submission Open
Keywords: structural phase transitions; charge density wave; lattice modulations; crystal structure prediction; high pressure
(This special issue belongs to the Section Inorganic Crystalline Materials)
Additively Manufactured Alloys: From Design and Microstructure to Fatigue Performance
edited by Liyi Wang, Jianzhi Chen, and
submission deadline 20 Mar 2027 | Viewed by 225 | Submission Open
Keywords: additive manufacturing; alloy design; microstructure evolution; damage tolerance; defect sensitivity; process–structure–fatigue property relationships; fatigue performance; fatigue fracture; anti-fatigue design; faitgue life; life prediction
(This special issue belongs to the Section Crystalline Metals and Alloys)
Laser Additive Manufacturing: Bridging the Gap Between Academic Research and Industrial Application
edited by and
submission deadline 20 Mar 2027 | Viewed by 214 | Submission Open
Keywords: laser additive manufacturing (LAM); laser powder bed fusion (LPBF); directed energy deposition (DED); hybrid; manufacturing systems; microstructural characterization; process–structure–property relationships; residual stress; defect formation mechanisms
(This special issue belongs to the Section Crystalline Metals and Alloys)
Advanced Material for Energy Storage
edited by and Kim Han Tan
submission deadline 20 Mar 2027 | Viewed by 179 | Submission Open
Keywords: energy storage; advanced materials; nanomaterials; supercapacitors; batteries; VRFB; electrochemical performance; MXene; graphene composites; energy conversion; sustainable energy technologies
(This special issue belongs to the Section Materials for Energy Applications)
The Application of Transmission Electron Microscopy in Battery Materials
edited by Yi Wu and Kai Wang
submission deadline 20 Mar 2027 | Viewed by 57 | Submission Open
Keywords: transmission electron microscopy (TEM); battery materials; in situ characterization; phase structure evolution; electrode–electrolyte interfaces and surfaces; energy storage mechanisms; degradation and failure analysis
(This special issue belongs to the Section Materials for Energy Applications)
Advanced Research in Electronic Materials and Devices
edited by , Rui Han and Jintao Wang
submission deadline 20 Mar 2027 | Viewed by 39 | Submission Open
Keywords: OLED; flexible electronics; two-dimensional materials; perovskite quantum dots; perovskite light emitting diodes; perovskite solar cells
(This special issue belongs to the Section Materials for Energy Applications)
Ceramic Materials: Structural, Mechanical and Dielectric Properties
edited by and
submission deadline 31 Mar 2027 | 2 articles | Viewed by 4774 | Submission Open
Keywords: dielectric materials; functional ceramics; complex oxides; ferroelectric materials; non-Debye relaxation; solid-state synthesis; sol–gel synthesis; structural characterization (XRD, SEM, Raman, XPS); composition–structure–property relationships; energy storage; microwave devices; flexible electronics; materials for communication systems; multifunctional composites; impedance analyzer; crystallographic; microstructural; optical properties
(This special issue belongs to the Section Polycrystalline Ceramics)
Sustainable Hydrometallurgical Recycling from Spent Lithium-Ion Batteries and Industrial Solid Wastes
edited by Chunli Liu
submission deadline 31 Mar 2027 | 1 articles | Viewed by 284 | Submission Open
Keywords: spent lithium-ion battery; coal fly ash; industrial solid waste; lithium extraction solid residue; resources recovery; hydrometallurgy
(This special issue belongs to the Section Materials for Energy Applications)
Crystallization and Rheological Properties of Functional Building Materials
edited by and Jincheng Yu
submission deadline 1 Apr 2027 | Viewed by 76 | Submission Open
(This special issue belongs to the Section Inorganic Crystalline Materials)
Spectroscopic and Crystallographic Analysis of Gemstones
edited by Jun Shu and Zuowei Yin
submission deadline 10 Apr 2027 | Viewed by 127 | Submission Open
Keywords: crystallography; optical spectroscopy; gemstones; synthetic gemstones; ancient jade; ancient ceramics; provenance tracing; non-destructive characterization
(This special issue belongs to the Section Mineralogical Crystallography and Biomineralization)
Simulation on Casting and Solidification Process of Crystalline Metals and Alloys submission deadline 20 Apr 2027 | 1 articles | Viewed by 1695 | Submission Open
Keywords: casting simulation; solidification modeling; crystalline metals and alloys; microstructure evolution; grain structure prediction; thermal and fluid flow analysis; phase transformation; numerical methods in metallurgy; defect prediction in casting
(This special issue belongs to the Section Crystalline Metals and Alloys)
Synthesis and Crystal Structures of Novel Solid-State Materials and Their Applications
edited by and Patricia Barahona
submission deadline 20 Apr 2027 | 1 articles | Viewed by 1661 | 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)
Recent Advances in Graphene and Other Two-Dimensional Materials (2nd Edition) submission deadline 20 Apr 2027 | 1 articles | Viewed by 829 | 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)
Advances in Electrochemical Energy Storage Materials: From Fundamental Mechanisms to Practical Applications
edited by Weiqiang Lv and
submission deadline 20 Apr 2027 | Viewed by 553 | Submission Open
Keywords: electrochemical energy storage; advanced materials; battery; catalysis; in situ characterization; interfacial chemistry; nanomaterials; solid-state electrolytes; mechanism elucidation; device engineering
(This special issue belongs to the Section Materials for Energy Applications)
Advanced Additive Manufacturing of Biomaterials and Medical Devices
edited by Onur Ertugrul
submission deadline 20 Apr 2027 | Viewed by 256 | Submission Open
Keywords: additive manufacturing; biomaterials; medical devices; biomedical implants; bioprinting; tissue engineering; metallic biomaterials; polymeric biomaterials; biodegradable materials; lattice structures
(This special issue belongs to the Section Hybrid and Composite Crystalline Materials)
Semiconductor Integration on Silicon for Photonics
edited by Xin Wei and Hung-Pin Hsu
submission deadline 20 Apr 2027 | Viewed by 48 | Submission Open
Keywords: silicon photonics; heterogeneous integration; III-V on silicon; CMOS-compatible process; optical interconnects; PIC (photonic integrated circuits) ; co-packaged optics (CPO) ; 3D stacking ; silicon-based III-V group semiconductors ; silicon-based perovskites ; silicon-based lithium niobate group materials ; silicon-based group IV alloys ; silicon-based dielectric and passive photonic materials ; silicon-based ferroelectric and electro-optic oxides; silicon-based two-dimensional layered materials ; silicon-based organic and polymer materials ; silicon-based wide bandgap functional materials
(This special issue belongs to the Section Inorganic Crystalline Materials)
Advances in Photocatalytic Materials: Preparation and Properties submission deadline 20 Apr 2027 | Viewed by 6 | Submission Open
Keywords: advanced photocatalytic materials; CO2 reduction; photocatalyst preparation; semiconductor photocatalysts; antimicrobial photocatalysts; air and water treatment; environmental catalysis and sustainability; photo-assisted catalytic organic synthesis; photocatalysis; photocatalytic CO2 conversion; photocatalytic reaction mechanisms; photocatalytic coatings and films; polymer-based photocatalysts; photocatalytic polymer nanocomposites
(This special issue belongs to the Section Inorganic Crystalline Materials)
Semiconductor Materials for Photodetectors
edited by , Chunyu Xu and
submission deadline 20 Apr 2027 | Viewed by 6 | Submission Open
Keywords: organic semiconductor materials; optoelectronic devices; metal halide perovskite semiconductors; photodetectors; oxide semiconductors; artificial vision; defect regulation; charge transport mechanisms; photovoltaics
(This special issue belongs to the Section Materials for Energy Applications)
Recent Advances in Bio-Inspired and Biomimetic Materials
edited by
submission deadline 20 May 2027 | Viewed by 140 | Submission Open
Keywords: bioinspired materials; biostructures; biomimetic materials; biomineralization; self-assembly; hierarchical structures; enamel-like nanocomposites; calcium-based minerals; mussel-inspired adhesion; bio-inspired fabrication; bioprocessing-inspired fabrication; bioprocessing-inspired synthesis; structures and functions; biomineralization-inspired synthesis; photosynthesis-inspired synthesis; additive manufacturing; microscale additive manufacturing; nanoscale additive manufacturing; biomineralization of collagen fibrils; kinetics of mineral deposition; artificial mineralization; natural living organism-directed synthesis; protein- or organism-induced synthesis; physiological processes; sustainable material synthesis
(This special issue belongs to the Section Mineralogical Crystallography and Biomineralization)
Thermodynamics and Kinetics of Crystalline Materials Through Advanced Characterization and Simulation
edited by and Ebru Akpınar
submission deadline 27 May 2027 | Viewed by 339 | Submission Open
Keywords: crystalline materials; crystal structure; microstructure; crystalline nanoparticles; nanofluids; thermophysical properties; heat transfer; computational fluid dynamics; machine learning; explainable artificial intelligence
(This special issue belongs to the Section Inorganic Crystalline Materials)
Advances in Plasticizers and Liquid Crystals: Design, Properties and Applications submission deadline 20 Jun 2027 | Viewed by 450 | Submission Open
Keywords: liquid crystals; plasticizers; ionic liquid crystals; ionic plasticizers; ionic liquids; advanced materials; differential scanning calorimetry; polarized optical microscopy; X-ray diffraction; dielectric spectroscopy
(This special issue belongs to the Section Liquid Crystals)
Advances in Laser Processing of Advanced Alloys and Functional Materials
edited by Yasemin Gündoǧdu and
submission deadline 20 Jul 2027 | Viewed by 75 | Submission Open
Keywords: laser–material interactions; nonlinear optical processes; nanoparticle production with laser ablation and its applications; nanoparticle photocatalysis processes; laser welding; laser-based spectroscopy; pulsed laser deposition
(This special issue belongs to the Section Inorganic Crystalline Materials)
Recent Advances in Alloys and Composite Materials: Processing, Microstructure, Properties, and Applications submission deadline 31 Jul 2027 | Viewed by 321 | Submission Open
Keywords: alloys; composite materials; crystalline materials; advanced materials processing; microstructural evolution; phase transformations; crystallographic characterization; processing–structure–property relationships; tribology and corrosion; sustainable materials design
(This special issue belongs to the Section Crystal Engineering)
Innovative Functional Materials for Intelligent Sensing Technologies
edited by , Bonex Mwakikunga and
submission deadline 31 Jul 2027 | Viewed by 316 | Submission Open
Keywords: functional materials; intelligent sensing technologies; flexible electronics; point-of-care diagnostics; chemical sensing; semiconducting metal oxide gas sensors; wearable sensors; flexible electronics; electrochemical sensors; gas sensors; biosensors
(This special issue belongs to the Section Inorganic Crystalline Materials)
Sustainable Carbon-Based Materials Design, Properties, and Applications
edited by , Ramazan Dalmis and Sukran Kara
submission deadline 1 Aug 2027 | Viewed by 298 | Submission Open
Keywords: sustainable carbon; biochar; activated carbon; energy storage; nanocomposites; sensor; functionalized carbon materials; electromagnetic interference shielding; heavy metal absorption; photocatalytic degradation
(This special issue belongs to the Section Organic Crystalline Materials)
Properties and Synthesis of Luminescent Materials submission deadline 10 Aug 2027 | 2 articles | Viewed by 2765 | Submission Open
Keywords: luminescent materials; lanthanide doping; transition metal doping; synthesis; structure–property correlations; optical properties; luminescence thermometry; fluorescence sensors; photocatalysis; defects
(This special issue belongs to the Section Materials for Energy Applications)
Magnetic Materials and Monte Carlo Simulations
edited by and Naihua Miao
submission deadline 10 Aug 2027 | Viewed by 652 | Submission Open
Keywords: magnetic materials; monte carlo methods; monte carlo simulation; hysteresis behavior; spin systems; phase transitions; magnetic nanostructures; magnetocaloric effect; Density Functional Theory (DFT); ddvanced functional materials; computational modeling
(This special issue belongs to the Section Inorganic Crystalline Materials)
High-Performance Crystalline Materials: Structural Design, Functional Properties and Advanced Manufacturing
edited by Yintian Xing, Tengfei Yin, and Hongrui Zhang
submission deadline 10 Aug 2027 | Viewed by 130 | Submission Open
Keywords: crystalline materials ; structural design ; functional properties ; ultra-precision machining ; pressing forming ; additive manufacturing ; advanced manufacturing ; surface integrity ; processing–microstructure–property relationship
(This special issue belongs to the Section Inorganic Crystalline Materials)
Microstructure and Properties of Metals and Alloys, 2nd Edition
edited by Zhongquan Zhang, and Ze Chai
submission deadline 20 Aug 2027 | Viewed by 59 | Submission Open
Keywords: metals/alloys; bulk materials; coatings; films; microstructure; mechanical property; electrical property; anti-corrosive property; magnetic property
(This special issue belongs to the Section Crystalline Metals and Alloys)
Perovskites: Crystal Structure, Properties and Applications submission deadline 10 Sep 2027 | 1 articles | Viewed by 1506 | Submission Open
Keywords: perovskite materials; crystal structure; material characterization; energy applications; nanotechnology; computational modeling
(This special issue belongs to the Section Materials for Energy Applications)
Intelligent Manufacturing of Metal and Ceramic Materials
edited by and Mina Zhang
submission deadline 31 Dec 2027 | Viewed by 91 | Submission Open
Keywords: intelligent manufacturing; additive manufacturing; multifunctional metal; advanced ceramics; wire arc additive manufacturing (WAAM); selective laser melting (SLM)
(This special issue belongs to the Section Inorganic Crystalline Materials)
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