1
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Zhang Z, Deng D, Xu X, Zhang J, Yan S, Guo Z, Dong H, Chen Z, Su Z. Stretchable Tb-Tb Distance Regulates the Piezofluorochromic Behavior of Chiral Tb(III)-MOF upon Compression. JACS AU 2024; 4:2050-2057. [PMID: 38818063 PMCID: PMC11134353 DOI: 10.1021/jacsau.4c00259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 05/01/2024] [Accepted: 05/01/2024] [Indexed: 06/01/2024]
Abstract
Luminescent chiral Tb-MOF microcrystals with the Tb2(COO)4 subunit indicated strong green mechano-luminescence under compression. Furthermore, piezofluorochromic behavior in the diamond anvil cell was observed, with the intensity tendency of decreasing-increasing-decreasing and a shortened lifetime upon compression, due to the reversible stretchable Tb-Tb interactions. The Tb-Tb distance upon compression was refined through in situ high-pressure X-ray absorption spectra, which was consistent with the tendency of the piezofluorochromic intensity. In situ high-pressure UV-vis absorption spectra, Fourier transform infrared spectra, and powder X-ray diffraction demonstrated the full recovery of Tb-MOF after over 10 GPa compressions due to the semiflexible ligand. This work not only provided an ultrastable Tb-MOF but also illustrated the relationship of the piezofluorochromic behavior with the detailed structural transformation for the first time.
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Affiliation(s)
- Ziyou Zhang
- Jiangsu
Collaborative Innovation Center of Biomedical Functional Materials,
Jiangsu Key Laboratory of Biofunctional Materials, College of Chemistry
and Materials Science, Nanjing Normal University, Nanjing 210046, China
- Center
for High Pressure Science and Technology Advanced Research, Shanghai 201203, China
| | - Dongping Deng
- Jiangsu
Collaborative Innovation Center of Biomedical Functional Materials,
Jiangsu Key Laboratory of Biofunctional Materials, College of Chemistry
and Materials Science, Nanjing Normal University, Nanjing 210046, China
| | - Xiaoqian Xu
- Jiangsu
Collaborative Innovation Center of Biomedical Functional Materials,
Jiangsu Key Laboratory of Biofunctional Materials, College of Chemistry
and Materials Science, Nanjing Normal University, Nanjing 210046, China
| | - Jiangwei Zhang
- College
of Chemistry and Chemical Engineering, Inner
Mongolia University, Hohhot 010021, China
| | - Shuai Yan
- Shanghai
Synchrotron Radiation Facility, Institute
of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, China
| | - Zhiying Guo
- Beijing
Synchrotron Radiation Facility, Institute
of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Hongliang Dong
- Center
for High Pressure Science and Technology Advanced Research, Shanghai 201203, China
| | - Zhiqiang Chen
- Center
for High Pressure Science and Technology Advanced Research, Shanghai 201203, China
| | - Zhi Su
- Jiangsu
Collaborative Innovation Center of Biomedical Functional Materials,
Jiangsu Key Laboratory of Biofunctional Materials, College of Chemistry
and Materials Science, Nanjing Normal University, Nanjing 210046, China
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2
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Zhang XJ, Sun ME, Sun F, Jin Y, Dong XY, Li S, Li HY, Chen G, Fu Y, Wang Y, Tang Q, Wu Y, Jiang L, Zang SQ. Vibration-Dependent Dual-Phosphorescent Cu 4 Nanocluster with Remarkable Piezochromic Behavior. Angew Chem Int Ed Engl 2024:e202401724. [PMID: 38691401 DOI: 10.1002/anie.202401724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 04/18/2024] [Accepted: 04/30/2024] [Indexed: 05/03/2024]
Abstract
The dual emission (DE) characteristics of atomically precise copper nanoclusters (Cu NCs) are of significant theoretical and practical interest. Despite this, the underlying mechanism driving DE in Cu NCs remains elusive, primarily due to the complexities of excited state processes. Herein, a novel [Cu4(PPh3)4(C≡C-p-NH2C6H4)3]PF6 (Cu4) NC, shielded by alkynyl and exhibiting DE, was synthesized. Hydrostatic pressure was applied to Cu4, for the first time, to investigate the mechanism of DE. With increasing pressure, the higher-energy emission peak of Cu4 gradually disappeared, leaving the lower-energy emission peak as the dominant emission. Additionally, the Cu4 crystal exhibited notable piezochromism transitioning from cyan to orange. Angle-dispersive synchrotron X-ray diffraction results revealed that the reduced inter-cluster distances under pressure brought the peripheral ligands closer, leading to the formation of new C-H⋅⋅⋅N and N-H⋅⋅⋅N hydrogen bonds in Cu4. It is proposed that these strengthened hydrogen bond interactions limit the ligands' vibration, resulting in the vanishing of the higher-energy peak. In situ high-pressure Raman and vibrationally resolved emission spectra demonstrated that the benzene ring C=C stretching vibration is the structural source of the DE in Cu4.
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Affiliation(s)
- Xiao-Jing Zhang
- Henan Key Laboratory of Crystalline Molecular Functional Materials, Henan International Joint Laboratory of Tumor Theranostical Cluster Materials, Green Catalysis Center, and College of Chemistry, Zhengzhou University, 450001, Zhengzhou, China
| | - Meng-En Sun
- Henan Key Laboratory of Crystalline Molecular Functional Materials, Henan International Joint Laboratory of Tumor Theranostical Cluster Materials, Green Catalysis Center, and College of Chemistry, Zhengzhou University, 450001, Zhengzhou, China
- College of Material Engineering, Henan International Joint Laboratory of Rare Earth Composite Materials, Henan University of Engineering, 451191, Zhengzhou, China
| | - Fang Sun
- School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, 401331, Chongqing, China
| | - Yan Jin
- Henan Key Laboratory of Crystalline Molecular Functional Materials, Henan International Joint Laboratory of Tumor Theranostical Cluster Materials, Green Catalysis Center, and College of Chemistry, Zhengzhou University, 450001, Zhengzhou, China
| | - Xi-Yan Dong
- Henan Key Laboratory of Crystalline Molecular Functional Materials, Henan International Joint Laboratory of Tumor Theranostical Cluster Materials, Green Catalysis Center, and College of Chemistry, Zhengzhou University, 450001, Zhengzhou, China
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, 454000, Jiaozuo, China
| | - Si Li
- Henan Key Laboratory of Crystalline Molecular Functional Materials, Henan International Joint Laboratory of Tumor Theranostical Cluster Materials, Green Catalysis Center, and College of Chemistry, Zhengzhou University, 450001, Zhengzhou, China
| | - Hai-Yang Li
- Henan Key Laboratory of Crystalline Molecular Functional Materials, Henan International Joint Laboratory of Tumor Theranostical Cluster Materials, Green Catalysis Center, and College of Chemistry, Zhengzhou University, 450001, Zhengzhou, China
| | - Gaosong Chen
- Henan Key Laboratory of Crystalline Molecular Functional Materials, Henan International Joint Laboratory of Tumor Theranostical Cluster Materials, Green Catalysis Center, and College of Chemistry, Zhengzhou University, 450001, Zhengzhou, China
| | - Yongping Fu
- Beijing National Laboratory for Molecular Science, College of Chemistry and Molecular Engineering, Peking University, 100871, Beijing, China
| | - Yonggang Wang
- School of Materials Science and Engineering, Peking University, 100871, Beijing, China
| | - Qing Tang
- School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, 401331, Chongqing, China
| | - Yuchen Wu
- Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, 100871, Beijing, China
| | - Lei Jiang
- Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, 100871, Beijing, China
| | - Shuang-Quan Zang
- Henan Key Laboratory of Crystalline Molecular Functional Materials, Henan International Joint Laboratory of Tumor Theranostical Cluster Materials, Green Catalysis Center, and College of Chemistry, Zhengzhou University, 450001, Zhengzhou, China
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3
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Xiao Z, Shan S, Wang Y, Zheng H, Li K, Yang X, Zou B. Harvesting Multicolor Photoluminescence in Nonaromatic Interpenetrated Metal-Organic Framework Nanocrystals via Pressure-Modulated Carbonyls Aggregation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2403281. [PMID: 38661081 DOI: 10.1002/adma.202403281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 04/16/2024] [Indexed: 04/26/2024]
Abstract
Interpenetrated metal-organic frameworks (MOFs) with nonaromatic ligands provide a unique platform for adsorption, catalysis, and sensing applications. However, nonemission and the lack of optical property tailoring make it challenging to fabricate smart responsive devices with nonaromatic interpenetrated MOFs based on ligand-centered emission. In this paper, the pressure-induced aggregation effect is introduced in nonaromatic interpenetrated Zn4O(ADC)4(Et3N)6 (IRMOF-0) nanocrystals (NCs), where carbonyl groups aggregation results in O─O distances smaller than the sum of the van der Waals radii (3.04 Å), triggering the photoluminescence turn-on behavior. It is noteworthy that the IRMOF-0 NCs display an ultrabroad emission tunability of 130 nm from deep blue (440 nm) to yellow (570 nm) upon release to ambient conditions at different pressures. The eventual retention of through-space n-π* interactions in different degrees via pressure treatment is primarily responsible for achieving a controllable multicolor emission behavior in initially nonemissive IRMOF-0 NCs. The fabricated multicolor phosphor-converted light-emitting diodes based on the pressure-treated IRMOF-0 NCs exhibit excellent thermal, chromaticity, and fatigue stability. The proposed strategy not only imparts new vitality to nonaromatic interpenetrated MOFs but also offers new perspectives for advancements in the field of multicolor displays and daylight illumination.
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Affiliation(s)
- Zhihao Xiao
- State Key Laboratory of Superhard Materials, Synergetic Extreme Condition High-Pressure Science Center, College of Physics, Jilin University, Changchun, 130012, China
| | - Shuo Shan
- State Key Laboratory of Superhard Materials, Synergetic Extreme Condition High-Pressure Science Center, College of Physics, Jilin University, Changchun, 130012, China
| | - Yixuan Wang
- State Key Laboratory of Superhard Materials, Synergetic Extreme Condition High-Pressure Science Center, College of Physics, Jilin University, Changchun, 130012, China
| | - Haiyan Zheng
- Center for High Pressure Science and Technology Advanced Research, Beijing, 100193, China
| | - Kuo Li
- Center for High Pressure Science and Technology Advanced Research, Beijing, 100193, China
| | - Xinyi Yang
- State Key Laboratory of Superhard Materials, Synergetic Extreme Condition High-Pressure Science Center, College of Physics, Jilin University, Changchun, 130012, China
| | - Bo Zou
- State Key Laboratory of Superhard Materials, Synergetic Extreme Condition High-Pressure Science Center, College of Physics, Jilin University, Changchun, 130012, China
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4
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Lv Y, Liang J, Xiong Z, Yang X, Li Y, Zhang H, Xiang S, Chen B, Zhang Z. Smart-Responsive HOF Heterostructures with Multiple Spatial-Resolved Emission Modes toward Photonic Security Platform. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2309130. [PMID: 37879073 DOI: 10.1002/adma.202309130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 10/13/2023] [Indexed: 10/27/2023]
Abstract
Luminescent hydrogen-bonded organic frameworks (HOFs) with the unique dynamics and versatile functional sites hold great potential application in information security, yet most of responsive HOFs focus on the single-component framework with restrained emission control, limiting further applications in advanced confidential information protection. Herein, the first smart-responsive HOF heterostructure with multiple spatial-resolved emission modes for covert photonic security platform is reported. The HOF heterostructures are prepared by integrating different HOFs into a single microwire based on a hydrogen-bond-assisted epitaxial growth method. The distinct responsive behaviors of HOFs permit the heterostructure to simultaneously display the thermochromism via the framework transformation and the acidichromism via the protonation effect, thus generating multiple emission modes. The dual stimuli-controlled spatial-resolved emission modes constitute the fingerprint of a heterostructure, and enable the establishment of the smart-responsive photonic barcode with multiple convert states, which further demonstrate the dynamic coding capability and enhanced security in anticounterfeiting label applications. These results offer a promising route to design function-oriented smart responsive HOF microdevices toward advanced anticounterfeiting applications.
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Affiliation(s)
- Yuanchao Lv
- Fujian Provincial Key Laboratory of Polymer Materials, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, 350007, China
| | - Jiashuai Liang
- Fujian Provincial Key Laboratory of Polymer Materials, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, 350007, China
| | - Zhile Xiong
- Fujian Provincial Key Laboratory of Polymer Materials, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, 350007, China
| | - Xue Yang
- Fujian Provincial Key Laboratory of Polymer Materials, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, 350007, China
| | - Yunbin Li
- Fujian Provincial Key Laboratory of Polymer Materials, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, 350007, China
| | - Hao Zhang
- Fujian Provincial Key Laboratory of Polymer Materials, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, 350007, China
| | - Shengchang Xiang
- Fujian Provincial Key Laboratory of Polymer Materials, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, 350007, China
| | - Banglin Chen
- Fujian Provincial Key Laboratory of Polymer Materials, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, 350007, China
| | - Zhangjing Zhang
- Fujian Provincial Key Laboratory of Polymer Materials, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, 350007, China
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5
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Sun X, Wu M, Wang Y, Li Y, Dong Q, Wang K, Xiao G, Zou B. Self-Trapped Exciton Emission Enhancement in 3D Cationic Lead Halide Hybrids Via Phase Transition Engineering. J Phys Chem Lett 2024; 15:2031-2038. [PMID: 38349964 DOI: 10.1021/acs.jpclett.3c03625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2024]
Abstract
Three-dimensional (3D) cationic lead halide hybrids constructed by organic ions and inorganic networks via coordination bonds are a promising material for solid-state lighting due to their exceptional environmental stability and broad-spectrum emission. Nevertheless, their fluorescence properties are hindered by the limited lattice distortion from extensive connectivity within the inorganic network. Here, a dramatic 100-fold enhancement of self-trapped exciton (STE) emission is achieved in 3D hybrid material [Pb2Br2][O2C(CH2)4CO2] via pressure-triggered phase transition. Notably, pressure-treated material exhibits a 110 nm redshift with 1.5-fold enhancement compared to the initial state after pressure was completely released. The irreversible structural phase transition intensifies the [PbBr3O3] octahedral distortion, which is highly responsible for the optimization of quenched emission. These findings present a promising strategy for improving the optical properties of 3D halide hybrids with relatively high stability and thus facilitate their practical applications by pressure-driven phase transition engineering.
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Affiliation(s)
- Xuening Sun
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Min Wu
- Shandong Key Laboratory of Optical Communication Science and Technology, School of Physics Science and Information Technology, Liaocheng University, Liaocheng 252000, China
| | - Yue Wang
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Yongguang Li
- Key Laboratory of Organosilicon Chemistry and Material Technology Ministry of Education, College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China
| | - Qingfeng Dong
- State Key Laboratory of Supermolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China
| | - Kai Wang
- Shandong Key Laboratory of Optical Communication Science and Technology, School of Physics Science and Information Technology, Liaocheng University, Liaocheng 252000, China
| | - Guanjun Xiao
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Bo Zou
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
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6
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Liu Y, Fu B, Wu M, He W, Liu D, Liu F, Wang L, Liu H, Wang K, Cai W. Negative linear compressibility and strong enhancement of emission in Eu[Ag(CN) 2] 3·3H 2O under pressure. Phys Chem Chem Phys 2024; 26:1722-1728. [PMID: 38164760 DOI: 10.1039/d3cp05259a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
The framework material Eu[Ag(CN)2]3·3H2O exhibits a negative linear compressibility (NLC) of -4.2(1) TPa-1 over the largest pressure range yet observed (0-8.2 GPa). High-pressure single-crystal X-ray diffraction data show that the rapid contraction of the Kagome silver layers under compression causes the wine-rack lattice to expand along the c-axis. The hydrogen bonds between the water molecules and the main frameworks constrain the structural deformation under pressure and eventually a weak NLC effect generated. Furthermore, we found that the pressure-induced emission intensity increases almost 800-fold at 4.0 GPa, followed by a gradual decrease and disappearance at 8.1 GPa. Under compression, high pressure significantly tunes the triplet level positions near the Eu3+ ions, and horizontal displacement between a quenching excited state and the excited levels of Eu3+ facilitates the energy transfer process to the 5D0 excited state and limits the nonradiative corssover at elevated pressures, thus increasing the emission intensity. In addition, we observe a gradual band gap reduction with increasing pressure, and the sample could not be returned to the initial state after the pressure was completely released. By controlling the structural flexibility, we observe a coupled NLC and pressure-induced strong enhancement of the emission properties of Eu[Ag(CN)2]3·3H2O, which provides a new route for the design of new optical devices with intriguing luminescence properties under extreme environments.
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Affiliation(s)
- Yu Liu
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, Sichuan, China.
| | - Boyang Fu
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, Sichuan, China.
| | - Min Wu
- Shandong Key Laboratory of Optical Communication Science and Technology, School of Physics Science and Information Technology, Liaocheng University, Liaocheng 252000, China
| | - Weilong He
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, Sichuan, China.
| | - Donghua Liu
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, Sichuan, China.
| | - Fuyang Liu
- Center for High Pressure Science and Technology Advanced Research, Haidian, Beijing 100094, China
| | - Luhong Wang
- Center for High Pressure Science and Technology Advanced Research, Haidian, Beijing 100094, China
| | - Haozhe Liu
- Center for High Pressure Science and Technology Advanced Research, Haidian, Beijing 100094, China
| | - Kai Wang
- Shandong Key Laboratory of Optical Communication Science and Technology, School of Physics Science and Information Technology, Liaocheng University, Liaocheng 252000, China
| | - Weizhao Cai
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, Sichuan, China.
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7
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Xu J, Zhang W, Lv P, Li F, Zhan X, Zhang Y, Liu X. Improved Fluorescence and Photoelectrical Properties of CsPbBr 3 by Constructing Heterojunctions under Pressure. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2305870. [PMID: 37705123 DOI: 10.1002/smll.202305870] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 09/06/2023] [Indexed: 09/15/2023]
Abstract
All-inorganic cesium lead bromide quantum dots (CsPbBr3 -QD) compounds are potential candidates for optoelectronic devices, because of their excellent fluorescence luminescence and thermal stability. However, the many heterojunction interfaces and large band gap induce the low power conversion efficiency in the CsPbBr3 -QD heterojunction, limiting its practical applications. Hereby, in combination with the pressure regulation and TiO2 /CsPbBr3 -QD heterojunction, the interface interaction within the heterojunction can be enhanced and the band gap can be narrowed. The pressure-induced O─Ti─O bond softening and PbBr6 octahedron stiffening at the interface region significantly enhance the interface interactions that are favorable to the carrier transport. Compared with CsPbBr3 -QD, the atomic interaction between Pb and Br of TiO2 /CsPbBr3 -QD heterojunction can be dramatically enhanced at high pressures, leading to increased band gap narrowing rate by two times, which is useful to widen the absorption spectrum. The fluorescence intensity increases by two times. Compression increases the photocurrent and maintains it after the pressure is released, which is due to the enhanced interface interaction induced by the high pressure. The findings provide new opportunities to adjust the physical properties of perovskite heterogeneous structures, and have important applications in the field of new-generation photovoltaic devices.
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Affiliation(s)
- Jie Xu
- Laboratory of High Pressure Physics and Material Science (HPPMS), School of Physics and Physical Engineering, Qufu Normal University, Qufu, Shandong, 273165, China
| | - Wenhu Zhang
- Laboratory of High Pressure Physics and Material Science (HPPMS), School of Physics and Physical Engineering, Qufu Normal University, Qufu, Shandong, 273165, China
| | - Pin Lv
- Laboratory of High Pressure Physics and Material Science (HPPMS), School of Physics and Physical Engineering, Qufu Normal University, Qufu, Shandong, 273165, China
- Advanced Research Institute of Multidisciplinary Sciences, Qufu Normal University, Qufu, Shandong Province, 273165, China
| | - Fengjiao Li
- MOE Key Laboratory of Petroleum Engineering, China University of Petroleum, Beijing, 102249, China
| | - Xinhui Zhan
- Graduate School of Advanced Science and Engineering, Hiroshima University, Higashihiroshima, Hiroshima, 739-8526, Japan
| | - Yongsheng Zhang
- Laboratory of High Pressure Physics and Material Science (HPPMS), School of Physics and Physical Engineering, Qufu Normal University, Qufu, Shandong, 273165, China
- Advanced Research Institute of Multidisciplinary Sciences, Qufu Normal University, Qufu, Shandong Province, 273165, China
| | - Xiaobing Liu
- Laboratory of High Pressure Physics and Material Science (HPPMS), School of Physics and Physical Engineering, Qufu Normal University, Qufu, Shandong, 273165, China
- Advanced Research Institute of Multidisciplinary Sciences, Qufu Normal University, Qufu, Shandong Province, 273165, China
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8
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Xu T, Yin X, Zhai C, Chen D, Yang X, Hu S, Hu K, Shang Y, Dong J, Yao Z, Li Q, Wang P, Liu R, Yao M, Liu B. Realizing long range π-conjugation in phenanthrene and phenanthrene-based molecular crystals for anomalous piezoluminescence. Chem Sci 2023; 14:11629-11637. [PMID: 37920334 PMCID: PMC10619545 DOI: 10.1039/d3sc04006b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 10/02/2023] [Indexed: 11/04/2023] Open
Abstract
Unlike the known aggregation-caused quenching (ACQ) that the enhancement of π-π interactions in rigid organic molecules usually decreases the luminescent emission, here we show that an intermolecular "head-to-head" π-π interaction in the phenanthrene crystal, forming the so-called "transannular effect", could result in a higher degree of electron delocalization and thus photoluminescent emission enhancement. Such a transannular effect is molecular configuration and stacking dependent, which is absent in the isomers of phenanthrene but can be realized again in the designed phenanthrene-based cocrystals. The transannular effect becomes more significant upon compression and causes anomalous piezoluminescent enhancement in the crystals. Our findings thus provide new insights into the effects of π-π interactions on luminescence emission and also offer new pathways for designing efficient aggregation-induced emission (AIE) materials to advance their applications.
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Affiliation(s)
- Tongge Xu
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University Changchun 130012 China
| | - Xiu Yin
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University Changchun 130012 China
| | - Chunguang Zhai
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University Changchun 130012 China
| | - Desi Chen
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University Changchun 130012 China
| | - Xiaoying Yang
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University Changchun 130012 China
| | - Shuhe Hu
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University Changchun 130012 China
| | - Kuo Hu
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University Changchun 130012 China
| | - Yuchen Shang
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University Changchun 130012 China
| | - Jiajun Dong
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University Changchun 130012 China
| | - Zhen Yao
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University Changchun 130012 China
| | - Quanjun Li
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University Changchun 130012 China
| | - Peng Wang
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University Changchun 130012 China
| | - Ran Liu
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University Changchun 130012 China
| | - Mingguang Yao
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University Changchun 130012 China
| | - Bingbing Liu
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University Changchun 130012 China
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