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Crystals
Special Issues
Organic-Inorganic Hybrids: Synthesis, Property and Application
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Organic-Inorganic Hybrids: Synthesis, Property and Application

A special issue of Crystals (ISSN 2073-4352). This special issue belongs to the section "Hybrid and Composite Crystalline Materials".

Deadline for manuscript submissions: closed (20 March 2022) | Viewed by 19206

Special Issue Editors

Dr. Wei Liu

E-Mail Website
Guest Editor
School of Chemical Engineering and Technology, Sun Yat-Sen University, Zhuhai 519000, China
Interests: organic–inorganic hybrids materials; functional crystaline materials; coatings; luminescent materials; phosphors
Special Issues, Collections and Topics in MDPI journals
Prof. Xin Wu

E-Mail Website
Guest Editor
School of Chemical Engineering and Technology, Sun Yat-Sen University, Zhuhai 519000, China
Interests: computational materials science; graphene; stress corrosion cracking
Dr. Haoran Lin

E-Mail Website
Guest Editor
Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, 7098 Liuxian Blvd, Nanshan District, Shenzhen 518000, China
Interests: organic–inorganic hybrids; perovskite materials; low-dimensional perovskites; organic semiconductors; perovskite solar cells; light-emitting diodes
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Over the past several decades, crystalline organic-inorganic hybrid materials, composed of standalone inorganic and organic moieties or modules blended at the atomic or molecular scale, have been extensively explored. Incorporating of both inorganic and organic components in a single crystal lattice, these materials have versatile structures and interesting/unique properties; thus, they are both fundamentally and technologically important. In the resulting hybrid structures, the integration of the inorganic modules and organic ligands combines the superiority of the excellent electronic, optical, magnetic, thermal, and mechanical properties of the inorganic compounds and the superior structural flexibility, lightweight, processability, and functionality of organic molecules with greatly enhanced structural, chemical and physical properties.

This Special Issue covers the recent development of solid-state inorganic and inorganic–organic hybrid materials that possess interesting and unique properties potentially useful for clean and renewable energy applications, including but not limited to photovoltaics, solid-state lighting, thermoelectrics, gas storage, capture and separation, catalysis and chemical sensing.  The design, synthesis, characterization, functionalization, and optimization of these material families are discussed. Both experimental and theoretical methods to investigate and understand the structure–property correlations in these systems, as well as the organic-inorganic interface interactions at the atomic and molecular level, are introduced.

Prof. Wei Liu
Prof. Xin Wu
Prof. Haoran Lin
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Crystals is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Organic-inorganic hybrids
  • luminescence
  • catalysis
  • photovoltaic
  • chemical sensing
  • structure-property correlations

Published Papers (7 papers)

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Research

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13 pages, 37342 KiB  
Article
Zirconium(IV) Metal Organic Frameworks with Highly Selective Sorption for Diclofenac under Batch and Continuous Flow Conditions
by Anastasia D. Pournara, Evangelos K. Andreou, Gerasimos S. Armatas and Manolis J. Manos
Crystals 2022, 12(3), 424; https://doi.org/10.3390/cryst12030424 - 18 Mar 2022
Cited by 5 | Viewed by 1797
Abstract
Diclofenac (DCF) is among the most effective non-steroidal anti-inflammatory drugs (NSAIDs) and at the same time one of the most consumed drugs worldwide. Since the ever-increasing use of diclofenac poses serious threats to ecosystems, its substantial removal is crucial. To address this issue, [...] Read more.
Diclofenac (DCF) is among the most effective non-steroidal anti-inflammatory drugs (NSAIDs) and at the same time one of the most consumed drugs worldwide. Since the ever-increasing use of diclofenac poses serious threats to ecosystems, its substantial removal is crucial. To address this issue, a variety of sorbents have been employed. Herein we present the diclofenac removal properties of two metal organic frameworks, namely [Zr6O4(OH)4(NH2BDC)6]·xH2O (MOR-1) and H16[Zr6O16(H2PATP)4]·xH2O (MOR-2). Batch studies revealed fast sorption kinetics for removal of DCF− from water as well as particularly high selectivity for the drug vs. common competitive species. Moreover, the composite MOR-1-alginic acid material was utilized in a sorption column, displaying remarkable removal efficiency towards DCF− anions. Significantly, this is the first time that column sorption data for removal of NSAIDs using MOF-based materials is reported. Full article
(This article belongs to the Special Issue Organic-Inorganic Hybrids: Synthesis, Property and Application)
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10 pages, 3153 KiB  
Article
New Copper Bromide Organic-Inorganic Hybrid Molecular Compounds with Anionic Inorganic Core and Cationic Organic Ligands
by Dawei Luo, Jian Zhang, Yu Liang, Jianling Ni, Fangming Wang and Wei Liu
Crystals 2022, 12(1), 19; https://doi.org/10.3390/cryst12010019 - 23 Dec 2021
Cited by 1 | Viewed by 2609
Abstract
Here, organic-inorganic hybrid molecular compounds based on copper(I) bromide have been synthesized by slow-diffusion method. The inorganic modules of these two structures are Cu2Br42− anion, and the inorganic modules are coordinated to cationic organic ligands via Cu-N coordinative bonds. [...] Read more.
Here, organic-inorganic hybrid molecular compounds based on copper(I) bromide have been synthesized by slow-diffusion method. The inorganic modules of these two structures are Cu2Br42− anion, and the inorganic modules are coordinated to cationic organic ligands via Cu-N coordinative bonds. Both of these compounds are luminescent, emitting green emissions under UV excitation. Full article
(This article belongs to the Special Issue Organic-Inorganic Hybrids: Synthesis, Property and Application)
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8 pages, 2751 KiB  
Article
Surface Passivation Using N-Type Organic Semiconductor by One-Step Method in Two-Dimensional Perovskite Solar Cells
by Helong Wang, Guanchen Liu, Chongyang Xu, Fanming Zeng, Xiaoyin Xie and Sheng Wu
Crystals 2021, 11(8), 933; https://doi.org/10.3390/cryst11080933 - 12 Aug 2021
Cited by 5 | Viewed by 2535
Abstract
Surface passivation, which has been intensively studied recently, is essential for the perovskite solar cells (PSCs), due to the intrinsic defects in perovskite crystal. A series of chemical or physical methods have been published for passivating the defects of perovskites, which effectively suppressed [...] Read more.
Surface passivation, which has been intensively studied recently, is essential for the perovskite solar cells (PSCs), due to the intrinsic defects in perovskite crystal. A series of chemical or physical methods have been published for passivating the defects of perovskites, which effectively suppressed the charge recombination and enhanced the photovoltaic performance. In this study, the n-type semiconductor of [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) is dissolved in chlorobenzene (CB) for the surface passivation during the spin-coating process for depositing the two-dimensional (2D) perovskite film. This approach simplifies the fabrication process of 2D PSCs and benefits the film quality. As a result, the defects of perovskite film are effectively passivated by this method. A better perovskite/PCBM heterojunction is generated, exhibiting an increased film coverage and improved film morphology of PCBM. It is found that this technology results in an improved electron transporting performance as well as suppressed charge recombination for electron transport layer. As a result, PSCs based on the one-step formed perovskite/PCBM heterojunctions exhibit the optimized power conversion efficiency of 15.69% which is about 37% higher than that of regular perovskite devices. The device environmental stability is also enhanced due to the quality improved electron transport layer. Full article
(This article belongs to the Special Issue Organic-Inorganic Hybrids: Synthesis, Property and Application)
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8 pages, 14685 KiB  
Article
A New Copper(I) Iodide Based Organic-Inorganic Hybrid Structure with Red Emission
by Bing Lei, Xin Wu and Wei Liu
Crystals 2021, 11(6), 594; https://doi.org/10.3390/cryst11060594 - 24 May 2021
Cited by 1 | Viewed by 2040
Abstract
A new organic-inorganic hybrid structure based on copper (I) iodide staircase chain 1D-Cu2I2(5-chloropyrimidine)2 (1) has been synthesized by a slow-diffusion method. It emits red emission peaking at 620 nm. The internal quantum yield (IQY) measured for [...] Read more.
A new organic-inorganic hybrid structure based on copper (I) iodide staircase chain 1D-Cu2I2(5-chloropyrimidine)2 (1) has been synthesized by a slow-diffusion method. It emits red emission peaking at 620 nm. The internal quantum yield (IQY) measured for this compound is 6.5% under 360 nm excitation. This compound exhibits potential as a non-rare-earth light-emitting phosphor alternative. Full article
(This article belongs to the Special Issue Organic-Inorganic Hybrids: Synthesis, Property and Application)
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Review

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12 pages, 1760 KiB  
Review
Challenges and Opportunities for the Blue Perovskite Quantum Dot Light-Emitting Diodes
by Shuchen Weng, Guicheng Yu, Chao Zhou, Fang Lin, Yonglei Han, Hao Wang, Xiaoxi Huang, Xiaoyuan Liu, Hanlin Hu, Wei Liu, Yongfei Wang and Haoran Lin
Crystals 2022, 12(7), 929; https://doi.org/10.3390/cryst12070929 - 30 Jun 2022
Cited by 6 | Viewed by 2467
Abstract
Perovskite quantum dots (PQDs), as the promising materials for the blue light-emitting diodes (LEDs), own huge advantages as ultra-high color purity, flexibility and whole-spectrum tunability. Through dimensional and compositional engineering, PQD-LEDs have shown superiority in deep-blue light emission. However, compared with the fast [...] Read more.
Perovskite quantum dots (PQDs), as the promising materials for the blue light-emitting diodes (LEDs), own huge advantages as ultra-high color purity, flexibility and whole-spectrum tunability. Through dimensional and compositional engineering, PQD-LEDs have shown superiority in deep-blue light emission. However, compared with the fast development of red and green PeLEDs, the electroluminescent performance of PQD-LEDs has faced more obstacles. In this review, we aim to explore and state the uniqueness and the possible solutions for the bottleneck problems of the PQD-LEDs. Full article
(This article belongs to the Special Issue Organic-Inorganic Hybrids: Synthesis, Property and Application)
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13 pages, 1166 KiB  
Review
Manipulation of Crystallization Kinetics for Perovskite Photovoltaics Prepared Using Two-Step Method
by Fei Wang, Chuangye Ge, Xianfang Zhou, Xiao Liang, Dawei Duan, Haoran Lin, Quanyao Zhu and Hanlin Hu
Crystals 2022, 12(6), 815; https://doi.org/10.3390/cryst12060815 - 08 Jun 2022
Cited by 4 | Viewed by 3260
Abstract
Two-step fabricated perovskite solar cells have attracted considerable attention because of their good reproducibility and controllable crystallization during production. Optimizing the quality of perovskite films plays a decisive role in realizing superb performance via a two-step method. Many breakthroughs have been achieved to [...] Read more.
Two-step fabricated perovskite solar cells have attracted considerable attention because of their good reproducibility and controllable crystallization during production. Optimizing the quality of perovskite films plays a decisive role in realizing superb performance via a two-step method. Many breakthroughs have been achieved to obtain high-quality film from the perspective of manipulating crystallization kinetics in the two-step preparation process, which promotes the rapid development of perovskite photovoltaics. Therefore, focusing on the crystallization process in the two-step preparation process can provide a reliable basis for optimizing the performance of two-step devices. In this review, recent progress on regulating the crystallization process for two-step PSCs is systematically reviewed. Firstly, a specific description and discussion are provided on the crystallization process of perovskite in different two-step methods, including spin-coating, immersion and evaporation. Next, to obtain high-quality perovskite film via these two-step methods, current strategies of additive engineering, composition engineering, and solvent engineering for regulating the crystallization process for two-step perovskite are classified and investigated. Lastly, the challenges which hindering the performance of the two-step perovskite photovoltaics and an outlook toward further developments are proposed. Full article
(This article belongs to the Special Issue Organic-Inorganic Hybrids: Synthesis, Property and Application)
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14 pages, 864 KiB  
Review
Lead-Free Perovskite Single Crystals: A Brief Review
by Xianfang Zhou, Yansong Wang, Chuangye Ge, Bin Tang, Haoran Lin, Xintao Zhang, Yun Huang, Quanyao Zhu and Hanlin Hu
Crystals 2021, 11(11), 1329; https://doi.org/10.3390/cryst11111329 - 31 Oct 2021
Cited by 5 | Viewed by 3259
Abstract
Lead-free perovskites have received remarkable attention because of their nontoxicity, low-cost fabrication, and spectacular properties including controlled bandgap, long diffusion length of charge carrier, large absorption coefficient, and high photoluminescence quantum yield. Compared with the widely investigated polycrystals, single crystals have advantages of [...] Read more.
Lead-free perovskites have received remarkable attention because of their nontoxicity, low-cost fabrication, and spectacular properties including controlled bandgap, long diffusion length of charge carrier, large absorption coefficient, and high photoluminescence quantum yield. Compared with the widely investigated polycrystals, single crystals have advantages of lower trap densities, longer diffusion length of carrier, and extended absorption spectrum due to the lack of grain boundaries, which facilitates their potential in different fields including photodetectors, solar cells, X-ray detectors, light-emitting diodes, and so on. Therefore, numerous research focusing on the novel properties, preparation methods, and remarkable progress in applications of lead-free perovskite single crystals (LFPSCs) has been extensively studied. In this review, the current advancements of LFPSCs are briefly summarized, including the synthesis approaches, compositional and interfacial engineering, and stability of several representative systems of LFPSCs as well as the reported practical applications. Finally, the critical challenges which limit the performance of LFPSCs, and their inspiring prospects for further developments are also discussed. Full article
(This article belongs to the Special Issue Organic-Inorganic Hybrids: Synthesis, Property and Application)
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