CrystEngComm最新文献_第7页

Understanding the relationship between the crystal structure elastic–plastic properties of discrete-molecule organic–inorganic halide perovskites† 离散分子有机-无机卤化物钙钛矿晶体结构弹塑性关系的研究

IF 2.6 3区化学

CrystEngComm Pub Date : 2025-07-25 DOI: 10.1039/D5CE00716J

Jacob L. Hempel, Michael D. Wells, Sean Parkin, Yang-Tse Cheng and Aron J. Huckaba

{"title":"Understanding the relationship between the crystal structure elastic–plastic properties of discrete-molecule organic–inorganic halide perovskites†","authors":"Jacob L. Hempel, Michael D. Wells, Sean Parkin, Yang-Tse Cheng and Aron J. Huckaba","doi":"10.1039/D5CE00716J","DOIUrl":"https://doi.org/10.1039/D5CE00716J","url":null,"abstract":"Discrete-molecule hybrid perovskites with different organic and inorganic molecules can provide a wide array of tunable optoelectronic and piezoelectronic properties. In this study, we report the elastic modulus and hardness, obtained from instrumented indentation measurements, of three new and three known discrete-molecule single crystal halide metalates, with an aim towards understanding the relationship between their microstructure and mechanical properties. We find a correlation in the mechanical properties and the density of the crystal structure, as well as with the number of hydrogen bonding sites available on the organic cation. These two observations suggest that denser crystal structures with more hydrogen bonding sites lead to stronger intermolecular interactions, thereby increasing the elastic modulus. Contrary to previous findings in the literature, we also find that the metal–halide bond strength does not significantly influence the elastic modulus in this set of data. We rationalize this observation by the differences in supramolecular network dimensionality between the literature reports and the crystals presented in this study, thus concluding that the metal–halide bond strength plays an insignificant role in determining the elasticity of discrete-molecule single crystal hybrid perovskites.","PeriodicalId":70,"journal":{"name":"CrystEngComm","volume":" 34","pages":" 5743-5751"},"PeriodicalIF":2.6,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ce/d5ce00716j?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144909495","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Molecular design and crystal engineering of oligothiophenes using dicyanovinyl (DCV) and tricyanovinyl (TCV) groups 二氰乙烯基（DCV）和三氰乙烯基（TCV）基寡硫吩的分子设计和晶体工程

IF 2.6 3区化学

CrystEngComm Pub Date : 2025-07-25 DOI: 10.1039/D5CE00547G

Mamoun M. Bader, Phuong-Truc T. Pham, Samar M. T. Alrifai, Sarah H. Younas and Juri A. Albusaili

{"title":"Molecular design and crystal engineering of oligothiophenes using dicyanovinyl (DCV) and tricyanovinyl (TCV) groups","authors":"Mamoun M. Bader, Phuong-Truc T. Pham, Samar M. T. Alrifai, Sarah H. Younas and Juri A. Albusaili","doi":"10.1039/D5CE00547G","DOIUrl":"https://doi.org/10.1039/D5CE00547G","url":null,"abstract":"Oligothiophenes constitute an important class of conjugated organic materials with unique optical and electrical properties. These properties not only depend on the molecular structure but also on solid-state packing. In this highlight, we summarize the results of our work on the synthesis and crystal structures of a series of oligothiophenes endowed with strong electron accepting groups, namely the dicyanovinyl (DCV) and tricyanovinyl (TCV) groups. We focus on the impact of the presence of these strong electron-accepting groups on the solid-state structures and the dominant inter- and intra-molecular interactions in these materials. The main features observed in these studies include the role of intramolecular CN⋯S interactions in enforcing molecular planarity while promoting π-stack formation, presumably by depleting electron density in the parent compounds. Additionally, some crystals were found to exhibit syn-conformations of sulfur atoms, a feature that is rare in oligothiophenes. We further examine the impact of the presence of molecular structural modifications commonly employed in thiophene chemistry, such as the introduction of vinylene bridges, ethylenedioxy groups or EDOT; bromo- and solubilizing alkyl groups, on solid-state packing motifs. The evolution and modulation of inter- and intra-molecular interactions upon such molecular modification can lead to a better understanding of their role in the observed properties of both oligomers and the corresponding polymers. Seventeen structurally related oligothiophenes, endowed with electron accepting groups, are included in this highlight. We will also briefly discuss how these groups influence the optical, vibrational, and electrochemical properties of these compounds as these are important properties for the development of optical, Raman and electrochemical sensors for biological and environmental applications.","PeriodicalId":70,"journal":{"name":"CrystEngComm","volume":" 33","pages":" 5558-5570"},"PeriodicalIF":2.6,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144868558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Stepwise assembly of Ni–N2S2 catalytic sites and porphyrin photosensitizers in a metal–organic framework for bioinspired photocatalysis† Ni-N2S2催化位点和卟啉光敏剂在金属-有机框架中用于生物激发光催化的逐步组装

IF 2.6 3区化学

CrystEngComm Pub Date : 2025-07-24 DOI: 10.1039/D5CE00634A

Yu-Hao Gu, Xinyu Xu, Chenyu Zhu, Rengan Luo and Shuai Yuan

{"title":"Stepwise assembly of Ni–N2S2 catalytic sites and porphyrin photosensitizers in a metal–organic framework for bioinspired photocatalysis†","authors":"Yu-Hao Gu, Xinyu Xu, Chenyu Zhu, Rengan Luo and Shuai Yuan","doi":"10.1039/D5CE00634A","DOIUrl":"https://doi.org/10.1039/D5CE00634A","url":null,"abstract":"Integrating biomimetic catalytic centers and photosensitizers into stable metal–organic frameworks (MOFs) holds great promise for efficient artificial photocatalysis. However, the direct incorporation of catalytic centers and photosensitizers are often hindered by the decomposition of biomimetic catalytic motifs under harsh solvothermal conditions typically required for synthesizing robust MOFs. In this work, we report a stepwise assembly strategy to incorporate biomimetic Ni–N2S2 catalytic sites and porphyrin-based photosensitizers into a stable Zr-based MOF for efficient photocatalysis. First, a Zr-MOF (Zr-NiTSC) bearing Ni-thiosemicarbazide (NiTSC) linkers was synthesized under mild conditions, preserving the structural integrity of the Ni–N2S2 sites. Subsequently, porphyrin-based linkers (DCPP) as photosensitizers were introduced via post-synthetic linker exchange, yielding a series of mixed-linker MOFs (Zr-NiTSC-Px, x = 1, 2, or 3). By fine-tuning the DCPP/NiTSC ratios, photocatalytic hydrogen evolution experiments revealed a non-monotonic dependence of photocatalytic hydrogen evolution activity on the DCPP/NiTSC ratio, with both insufficient and excessive photosensitizer content diminishing the activity. Zr-NiTSC-P2 achieved a balanced photosensitizer-to-catalyst ratio and the highest activity, with a 2.5-fold increase in turnover frequency compared to the parent MOF. This work demonstrates a stepwise synthetic strategy to integrate labile catalytic motifs into robust frameworks, offering a broadly applicable platform for constructing advanced photosensitized catalytic systems.","PeriodicalId":70,"journal":{"name":"CrystEngComm","volume":" 35","pages":" 5841-5847"},"PeriodicalIF":2.6,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145007869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mechanical properties of crosslinked graphene oxide intercalated HMX and CL-20 crystals† 交联氧化石墨烯嵌入HMX和CL-20晶体的力学性能

IF 2.6 3区化学

CrystEngComm Pub Date : 2025-07-24 DOI: 10.1039/D5CE00567A

Justin Darku Quansah, Xuexue Zhang, Zhi-Hua Xue and Qi-Long Yan

{"title":"Mechanical properties of crosslinked graphene oxide intercalated HMX and CL-20 crystals†","authors":"Justin Darku Quansah, Xuexue Zhang, Zhi-Hua Xue and Qi-Long Yan","doi":"10.1039/D5CE00567A","DOIUrl":"https://doi.org/10.1039/D5CE00567A","url":null,"abstract":"Insensitive hybrid energetic crystals of 1,3,5,7-tetranitro-1,3,5,7-tetrazocane (HMX) and 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane (CL-20) were successfully synthesized by intercalation of triaminoguanidine-glyoxal crosslinked graphene oxide (GO-TAGP) at varying concentrations (0.5–2.0 wt%). The resulting composites exhibited enhanced density (3.2% increase for GO–TAGP modified HMX and 2.8% for GO-TAGP modified CL-20) and improved thermal stability, attributed to strong interfacial interactions between the GO-TAGP and the energetic molecules. This study investigates the correlation between GO-TAGP content and mechanical properties, which critically influence the initiation sensitivity of these hybrid nitramine crystals. Nanoindentation tests revealed a 14% increase in maximum load capacity (from 35 mN to 40 mN) for GO-TAGP reinforced HMX compared to pure β-HMX, along with a 10% higher displacement before failure. Similarly, GO-TAGP modified CL-20 demonstrated a 17% improvement in elastic modulus (from 8.7 GPa to 10.2 GPa) and a 22% increase in hardness (from 0.45 GPa to 0.55 GPa) at optimal GO loading. The elevated modulus values confirm that GO-TAGP reinforcement significantly enhances structural rigidity, enabling the composites to endure greater mechanical stress without deformation. Concurrently, the hardness improvements suggest superior resistance to localized plastic deformation, indicative of a more robust interfacial bonding within the modified crystal lattice. These enhancements contribute to reduced mechanical sensitivity, ensuring safer handling and storage of these high-energy materials.","PeriodicalId":70,"journal":{"name":"CrystEngComm","volume":" 32","pages":" 5467-5484"},"PeriodicalIF":2.6,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144810715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tracking the cocrystal formation of curcumin and pyrogallol by terahertz spectroscopy 用太赫兹光谱法追踪姜黄素和邻苯三酚的共晶形成

IF 2.6 3区化学

CrystEngComm Pub Date : 2025-07-24 DOI: 10.1039/D5CE00427F

Min Yuan, Chengqian You, Chunyi Zhang, Shuo Zhao, Xu Yang, Qiuhong Qu, Pengfei Wang and Mingxia He

{"title":"Tracking the cocrystal formation of curcumin and pyrogallol by terahertz spectroscopy","authors":"Min Yuan, Chengqian You, Chunyi Zhang, Shuo Zhao, Xu Yang, Qiuhong Qu, Pengfei Wang and Mingxia He","doi":"10.1039/D5CE00427F","DOIUrl":"https://doi.org/10.1039/D5CE00427F","url":null,"abstract":"Cocrystallization is a promising strategy to enhance the physicochemical properties of active pharmaceutical ingredients (APIs). For instance, curcumin (CUR) is a polyphenol compound with limited solubility and stability, whereas pyrogallol (PYR) is identified as a potential cocrystal former (CCF). Conventional analytical techniques have been used to understand the cocrystallization mechanism, but the formation mechanism of the CUR–PYR cocrystal remains unclear. This study employs terahertz (THz) spectroscopy to track the formation of the CUR–PYR cocrystal achieved by neat milling. THz spectral fingerprints reveal structural changes at the molecular level, characterized by the gradual disappearance of peaks at 1.64 THz, 2.24 THz, and 2.72 THz for the physical mixture and the progressive appearance of a peak at 2.42 THz for the CUR–PYR cocrystal. By extracting the absorption intensity of THz spectra and conducting data fitting, the progress of cocrystal formation follows the generalized exponential function and Avrami, with R2 over 97%. THz spectroscopy quantitatively detected the formation of a transient amorphous intermediate phase. THz crystallinity and spectral full width at half maximum, respectively, demonstrated a strong correlation with R2 = 0.9450 and Pearson's coefficient of 0.9790 and an inverse relationship with R2 = 0.9415 and Pearson's coefficient of −0.9703 with PXRD crystallinity. THz spectroscopy is validated as a robust technique for the detection of amorphous phases and monitoring of cocrystallization processes in solid-state transformations.","PeriodicalId":70,"journal":{"name":"CrystEngComm","volume":" 34","pages":" 5752-5760"},"PeriodicalIF":2.6,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144909496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Water vapour sorption properties of a family of square lattice topology porous coordination networks† 一类方形晶格拓扑多孔配位网络的水蒸气吸附特性。

IF 2.6 3区化学

CrystEngComm Pub Date : 2025-07-24 DOI: 10.1039/D5CE00385G

Samuel M. Shabangu, Alan C. Eaby, Lilia Croitor, Andrey A. Bezrukov and Michael J. Zaworotko

{"title":"Water vapour sorption properties of a family of square lattice topology porous coordination networks†","authors":"Samuel M. Shabangu, Alan C. Eaby, Lilia Croitor, Andrey A. Bezrukov and Michael J. Zaworotko","doi":"10.1039/D5CE00385G","DOIUrl":"10.1039/D5CE00385G","url":null,"abstract":"Porous coordination networks (PCNs) such as metal–organic frameworks are of topical interest thanks to their potential utility as sorbents for gas and vapour separations and/or storage. Interpenetrated PCNs, some of which offer promise for gas separations, remain relatively understudied in the context of water vapour sorption. Herein, we report an in-depth study of the water vapour sorption properties of a family of square lattice topology (sql) PCNs of general formula sql-[bipy,squa]-M-aqua (sql-M-aqua, M = Mn, Co, Ni, Zn, bipy = 4,4-bipyridine, squa = squarate). This family, several of which have been previously reported (Co, Ni, Mn), exist as rectangular grids that exhibit 2-fold inclined interpenetration, thereby forming ultramicroporous 3D supramolecular networks. Water vapour sorption studies of sql-M-aqua (M = Mn, Co, Ni, Zn) revealed S-shaped water vapour sorption isotherms with steps consistently below 10% relative humidity (RH) and little hysteresis. Such properties are pertinent to atmospheric water harvesting in arid regions (<30% RH). Water vapour humidity swing experiments (0–30% RH, 300 K) indicated hydrolytic stability for sql-M-aqua (M = Mn, Co, Ni, Zn) and retention of working capacity over 100 sorption/desorption cycles. sql-M-aqua (M = Mn, Co, Ni, Zn) also exhibit CO2/N2 selectivity.","PeriodicalId":70,"journal":{"name":"CrystEngComm","volume":" 34","pages":" 5669-5675"},"PeriodicalIF":2.6,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12319667/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144792986","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Growth and spectroscopic properties of Nd3+-doped PbMoO4 laser crystals 掺Nd3+的PbMoO4激光晶体的生长和光谱特性

IF 2.6 3区化学

CrystEngComm Pub Date : 2025-07-23 DOI: 10.1039/D5CE00137D

Zhiliang Dai, Yexi Huang, Mengxue Wang, Hui Shen and Jiayue Xu

{"title":"Growth and spectroscopic properties of Nd3+-doped PbMoO4 laser crystals","authors":"Zhiliang Dai, Yexi Huang, Mengxue Wang, Hui Shen and Jiayue Xu","doi":"10.1039/D5CE00137D","DOIUrl":"https://doi.org/10.1039/D5CE00137D","url":null,"abstract":"Lead molybdate (PbMoO4, PMO) crystal is a multifunctional material with diverse applications in acoustic-optics, scintillation and lasers. Herein, transparent 1 mol% and 2 mol% Nd3+-doped PMO crystals were readily grown via the Bridgman method, with dimensions of Φ 25.6 mm × 60 mm. The effective segregation coefficients of Nd3+ ions for the 1 mol% and 2 mol% Nd3+:PMO crystals were 0.58 and 0.63, respectively. The optical and fluorescence spectra were evaluated in detail, and the spectroscopic properties were determined using the Judd–Ofelt (J–O) theory. For 1 mol% Nd3+:PMO crystals, the absorption cross-section at 804 nm was 13.81 × 10−20 cm2, with an FWHM of 20.3 nm. The absorption cross-section and FWHM at 804 nm were calculated to be 9.29 × 10−20 cm2 and 14.8 nm for 2 mol% Nd3+:PMO crystals, respectively. Additionally, the emission cross-sections at 1.06 μm were calculated as 12.71 × 10−20 cm2 and 12.79 × 10−20 cm2 for 1 mol% and 2 mol% Nd3+:PMO crystals, respectively. The fluorescence decay time was moderately decreased from 145.84 μs (1 mol% Nd3+:PMO crystal) to 137.83 μs (2 mol% Nd3+:PMO crystal). Compared with other Nd3+ ion-doped laser gain medium, Nd3+:PMO crystals were featured with relatively larger absorption cross-sections and emission cross-sections and longer decay times. This work provides a deeper insight into the design of novel laser crystals in the near infrared region.","PeriodicalId":70,"journal":{"name":"CrystEngComm","volume":" 32","pages":" 5431-5440"},"PeriodicalIF":2.6,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144810751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Engineering dysprosium(iii) single-ion magnets via modular synthesis with strongly axial ligands† 强轴向配体模块化合成工程镝（iii）单离子磁体

IF 2.6 3区化学

CrystEngComm Pub Date : 2025-07-22 DOI: 10.1039/D5CE00636H

Kun-Hua Zhang, Zhi He, Long Huang, Xing-Yi Yu, Bingshan Zhao, Jiong Yang and Dong Shao

{"title":"Engineering dysprosium(iii) single-ion magnets via modular synthesis with strongly axial ligands†","authors":"Kun-Hua Zhang, Zhi He, Long Huang, Xing-Yi Yu, Bingshan Zhao, Jiong Yang and Dong Shao","doi":"10.1039/D5CE00636H","DOIUrl":"https://doi.org/10.1039/D5CE00636H","url":null,"abstract":"The solvothermal reaction of a mononuclear dysprosium(III) complex as building blocks with strongly axial ligands produced two solvent-free mononuclear dysprosium(III) complexes, namely [Dy(DClQ)3(Ph3PO)DMF] (1) and [Dy(DClQ)3(Ph3SiOH)DMF] (2) (DClQ = 5,7-dichloro-8-hydroxyquinolin; Ph3PO = triphenylphosphine oxide; Ph3SiOH = triphenylsilanol). The Dy3+ ions in 1 and 2 are located in distorted triangular dodecahedron (D2d) coordination environments. Interestingly, slow relaxation of magnetization at zero field was evidenced with the Ueff of 121(2) K for complex 1, while field-induced slow relaxation of magnetization was observed for 2. Relaxation dynamics analyses disclose that the combined Orbach, Raman, and QTM mechanisms are dominant in 1, whereas Orbach and Raman mechanisms play an important role in 2 under an applied field. The magnetic performance of single-ion magnet (SIM) properties of 1 and 2 is better than that of the parent mononuclear Dy(III) complex, revealing a significant enhancement of magnetic behaviors by using the strongly axial ligands. The present work provides an efficient strategy to design and construct new lanthanide SIMs through a SIM modular synthetic route.","PeriodicalId":70,"journal":{"name":"CrystEngComm","volume":" 34","pages":" 5662-5668"},"PeriodicalIF":2.6,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144909478","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Colorimetric and luminescent sensing of DMF by crystalline non-porous pyrene-based coordination compounds† 晶体无孔芘基配位化合物对DMF的比色和发光传感

IF 2.6 3区化学

CrystEngComm Pub Date : 2025-07-22 DOI: 10.1039/D5CE00600G

Jorge Sangrador-Pérez, Patricia Jiménez-Hernández, Mar García Hernández, E. Carolina Sañudo, Jose Sanchez Costa and Esther Resines-Urien

{"title":"Colorimetric and luminescent sensing of DMF by crystalline non-porous pyrene-based coordination compounds†","authors":"Jorge Sangrador-Pérez, Patricia Jiménez-Hernández, Mar García Hernández, E. Carolina Sañudo, Jose Sanchez Costa and Esther Resines-Urien","doi":"10.1039/D5CE00600G","DOIUrl":"https://doi.org/10.1039/D5CE00600G","url":null,"abstract":"Here, two non-porous coordination compounds, [Co2(trz-pyr)5(NCS)4]·3MeOH (1) and [Fe2(trz-pyr)5(NCS)4]·3MeOH (2), are presented as promising new materials for N,N-dimethylformamide (DMF) sensing. Unlike conventional metal organic-frameworks (MOFs), these non-porous compounds achieve “porous-like” behavior through crystal lattice reorganization upon DMF exposure. Crucially, both compounds demonstrate clear color changes when exposed to DMF vapors: compound 1 shifts from orange to green, and compound 2 changes from orange to dark red. This visual response is further supported by changes in their photoluminescence spectra, with a doubling of emission intensity, and confirmed by PXRD and FTIR data. These findings highlight the potential of these non-porous coordination compounds for developing sensitive and selective DMF sensors with real-time monitoring capabilities.","PeriodicalId":70,"journal":{"name":"CrystEngComm","volume":" 31","pages":" 5286-5291"},"PeriodicalIF":2.6,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144773346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Quantum-dot ZnO–CsPbBr3 interlayer induced high-performance ZnO nanoarray/CsPbBr3 photodetector† 量子点ZnO - CsPbBr3层间诱导的高性能ZnO纳米阵列/CsPbBr3光电探测器†

IF 2.6 3区化学

CrystEngComm Pub Date : 2025-07-22 DOI: 10.1039/D5CE00591D

Shuhua Yang, Song Wang, Huiyan Xu, Degang Zhao, Ping Ou and Bingqiang Cao

{"title":"Quantum-dot ZnO–CsPbBr3 interlayer induced high-performance ZnO nanoarray/CsPbBr3 photodetector†","authors":"Shuhua Yang, Song Wang, Huiyan Xu, Degang Zhao, Ping Ou and Bingqiang Cao","doi":"10.1039/D5CE00591D","DOIUrl":"https://doi.org/10.1039/D5CE00591D","url":null,"abstract":"Recent advances in halide perovskite quantum dot (QD) photodetector based ZnO nanoarrays (ZnO NRs) have been constrained by significant non-radiative recombination losses at quantum dot interfaces. To address this challenge, an innovative device architecture combined with a tailored quantum dot (QD) CsPbBr3–ZnO composite (P-ZnO) interlayer was designed. The vertically oriented ZnO nanoarrays function as high-mobility electron highways, while the optimized P-ZnO interlayer simultaneously enhances photon harvesting and minimizes interfacial recombination losses. The photodetector incorporating the optimized P-ZnO interlayer demonstrates exceptional performance characteristics, achieving a current modulation ratio exceeding 103, a photoresponsivity of 99.73 mA W−1, and a specific detectivity of 6.08 × 1011 Jones under 450 nm illumination. Also, the P-ZnO nanocomposite layer enables a remarkable suppression of dark current to 0.423 nA while simultaneously boosting photocurrent generation to 1.166 μA. This work establishes a facile and scalable fabrication approach for engineering high-efficiency perovskite quantum dot photodetectors.","PeriodicalId":70,"journal":{"name":"CrystEngComm","volume":" 34","pages":" 5735-5742"},"PeriodicalIF":2.6,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144909494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0