The Journal of Physical Chemistry Letters最新文献_第3页

Cavity-Induced Quantum Interference and Collective Interactions in van der Waals Systems 范德华系统中腔诱导量子干涉和集体相互作用

IF 6.475 2区化学

The Journal of Physical Chemistry Letters Pub Date : 2025-05-25 DOI: 10.1021/acs.jpclett.5c00031

Jianshu Cao, Eli Pollak

{"title":"Cavity-Induced Quantum Interference and Collective Interactions in van der Waals Systems","authors":"Jianshu Cao, Eli Pollak","doi":"10.1021/acs.jpclett.5c00031","DOIUrl":"https://doi.org/10.1021/acs.jpclett.5c00031","url":null,"abstract":"The central topic of this letter is to show that light-matter hybridization not only gives rise to novel dynamic responses but can also modify intermolecular interactions and induce new structural order. Using the van der Waals (vdW) system in an optical cavity as an example, we predict the effects of quantum interference and collectivity in cavity-induced many-body dispersion forces. Specifically, the leading order correction due to cavity-induced quantum fluctuations leads to 3-body and 4-body vdW interactions, which can align intermolecular vectors and are not pairwise additive. In addition, the cavity-induced dipole leads to a single-molecule energy shift that aligns individual molecules, and a pairwise interaction that scales as R–3 instead of the standard R–6 distance scaling. The coefficients of all these cavity-induced interactions depend on the cavity frequency and are renormalized by the effective Rabi frequency, which in turn depends on the particle density. Finally, we study the interaction of the vdW system in a cavity with an external object and find a significant enhancement in the interaction range due to modified distance scaling laws. These theoretical predictions suggest the possibility of cavity-induced nematic or smectic order and may provide an essential clue to understand intriguing phenomena observed in optical cavities, such as strongly modified ground-state reactivity, ion transport and charge mobility.","PeriodicalId":62,"journal":{"name":"The Journal of Physical Chemistry Letters","volume":"47 1","pages":""},"PeriodicalIF":6.475,"publicationDate":"2025-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144137005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Atomic-Scale Origins and Shielding-Corrected Dipole Predictions of Surface Electrostatic Potential Difference in Metal–TMDC Contacts 金属- tmdc接触中表面静电电位差的原子尺度起源和屏蔽校正偶极子预测

IF 6.475 2区化学

The Journal of Physical Chemistry Letters Pub Date : 2025-05-23 DOI: 10.1021/acs.jpclett.5c00927

Xiao Tang, Yahui Zheng, Haidi Wang, Weiduo Zhu, Zhao Chen, Qiong Tang, Hongyan Lv, Xiaofeng Liu, Wei Hu, Zhongjun Li, Jinlong Yang

{"title":"Atomic-Scale Origins and Shielding-Corrected Dipole Predictions of Surface Electrostatic Potential Difference in Metal–TMDC Contacts","authors":"Xiao Tang, Yahui Zheng, Haidi Wang, Weiduo Zhu, Zhao Chen, Qiong Tang, Hongyan Lv, Xiaofeng Liu, Wei Hu, Zhongjun Li, Jinlong Yang","doi":"10.1021/acs.jpclett.5c00927","DOIUrl":"https://doi.org/10.1021/acs.jpclett.5c00927","url":null,"abstract":"The atomic-scale origins and quantitative description of the surface electrostatic potential difference (ΔV) in metal–semiconductor contacts remain elusive, limiting rational interface barrier design. Through first-principles calculations on Au/Ag/Pt/Pd-transition-metal dichalcogenide (TMDC) contacts, we establish a robust linear correlation between ΔV and shielding-corrected dipole terms parametrized by atomic number (Z), valence electron count, and atomic radii. Three critical insights are identified. First, the dipole terms from metal–TMDC and TMDC–TMDC interfaces as well as TMDC layers dominate linearity with a contribution of about 90%–92%. Second, the interfaces and TMDC layers in closer proximity to the metal layer show reduced contributions due to suppression by the metallic free-electron region. Third, incorporating high-Z atomic shielding corrections collectively enhances linearity by 8%–10%, with a maximal correction from metal–TMDC interfaces. Using this correlation, interface barriers are predicted, matching those from band structures. This work clarifies the atomic origins of ΔV and establishes a predictive framework for designing metal–TMDC contact barriers.","PeriodicalId":62,"journal":{"name":"The Journal of Physical Chemistry Letters","volume":"33 1","pages":""},"PeriodicalIF":6.475,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144122518","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Synergistic Chloride Passivation and Inorganic Shell Confinement in ZnMgO Nanoparticles for Efficient and Stable Blue ZnSeTe QLEDs. ZnMgO纳米粒子的协同氯化钝化和无机壳约束用于高效稳定的蓝色ZnSeTe qled。

IF 6.475 2区化学

The Journal of Physical Chemistry Letters Pub Date : 2025-05-23 DOI: 10.1021/acs.jpclett.5c01186

Chaoyong Sun,Qiuyan Li,Sheng Cao,Yunjun Wang,Bingsuo Zou,Jialong Zhao

{"title":"Synergistic Chloride Passivation and Inorganic Shell Confinement in ZnMgO Nanoparticles for Efficient and Stable Blue ZnSeTe QLEDs.","authors":"Chaoyong Sun,Qiuyan Li,Sheng Cao,Yunjun Wang,Bingsuo Zou,Jialong Zhao","doi":"10.1021/acs.jpclett.5c01186","DOIUrl":"https://doi.org/10.1021/acs.jpclett.5c01186","url":null,"abstract":"Blue ZnSeTe quantum dot light-emitting diodes (QLEDs) are promising candidates for next-generation displays, but their efficiency and stability lag behind those of red and green devices. Herein, we report a synergistic modification strategy that integrates halide ion passivation with inorganic shell confinement to boost the performance of blue ZnSeTe QLEDs. Chlorine ions (Cl-) were employed to passivate oxygen vacancy defects on the surface of ZnMgO nanoparticles, followed by encapsulation with a Mg(OH)2 inorganic shell to stabilize Cl- ions. This approach significantly suppresses nonradiative recombination and exciton quenching. As a result, the blue ZnSeTe QLEDs with the engineered ZnMgO nanoparticles exhibit a high external quantum efficiency of 17.5% and a peak luminance of 13670 cd m-2 at 6.0 V, alongside a 4.6-fold increase in operational lifetime compared to the untreated ones. This work provides a promising pathway to enhance the efficiency and longevity of blue QLEDs, narrowing the performance gap across the full color spectrum.","PeriodicalId":62,"journal":{"name":"The Journal of Physical Chemistry Letters","volume":"76 1","pages":"5441-5448"},"PeriodicalIF":6.475,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144122244","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Organic-Inorganic PTB7-Th:ITIC/ZnO Heterojunction Based Self-Powered Photodetectors with Tunable Dual Detection Windows. 基于可调谐双探测窗口的有机-无机PTB7-Th:ITIC/ZnO异质结自供电光电探测器。

IF 6.475 2区化学

The Journal of Physical Chemistry Letters Pub Date : 2025-05-23 DOI: 10.1021/acs.jpclett.5c01156

Shuangyu Wang,Man Zhao,Dayong Jiang,Qingcheng Liang

{"title":"Organic-Inorganic PTB7-Th:ITIC/ZnO Heterojunction Based Self-Powered Photodetectors with Tunable Dual Detection Windows.","authors":"Shuangyu Wang,Man Zhao,Dayong Jiang,Qingcheng Liang","doi":"10.1021/acs.jpclett.5c01156","DOIUrl":"https://doi.org/10.1021/acs.jpclett.5c01156","url":null,"abstract":"In this work, we demonstrate a filter-free self-powered photodetector based on PTB7-Th:ITIC/ZnO heterojunction that exhibits remarkable selective spectral response characteristics. The device achieves band-selective detection through innovative manipulation of incident light direction, enabling multiple spectral detection capabilities within a single architecture. Under 0 V bias voltage operation, the device exhibits dual-mode detection capability depending on the illumination direction. When illuminated through the ZnO film side, the photodetector demonstrates visible light detection with a peak responsivity of 350 mA W-1 across the 400-800 nm spectral range. Conversely, illumination through the bulk heterojunction film side enables broadband detection from ultraviolet to visible spectrum (300-800 nm), showing distinct responsivity peaks at 2 mA W-1 and 29 mA W-1 for ultraviolet and visible regions, respectively. The selective spectral response characteristics of the PTB7-Th:ITIC/ZnO photodetector are primarily governed by two key factors: the optimized width of the depletion layer region and the distinctive distribution profile of the internal electric field. This work establishes a paradigm for developing autonomous photodetection systems capable of adaptive spectral discrimination, paving the way for advanced optoelectronic applications in complex environmental conditions.","PeriodicalId":62,"journal":{"name":"The Journal of Physical Chemistry Letters","volume":"76 1","pages":"5449-5457"},"PeriodicalIF":6.475,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144122344","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Boosting Excitonic Emission in 2D Multiple Quantum Well Superlattices by Plasma-Assisted Electrochemical Intercalation. 等离子体辅助电化学插层增强二维多量子阱超晶格中的激子发射。

IF 6.475 2区化学

The Journal of Physical Chemistry Letters Pub Date : 2025-05-22 DOI: 10.1021/acs.jpclett.5c00826

Shixuan Wang,Jian Li,Peiyu Zeng,Xu Han,Jinshu Zhang,Xiaoya Liu,Weiqiao Xia,Zhexing Duan,Wei Liu,Shaoqing Xiao,Qiang Fu,Qi Zhang,Junpeng Lu,Zhenhua Ni

{"title":"Boosting Excitonic Emission in 2D Multiple Quantum Well Superlattices by Plasma-Assisted Electrochemical Intercalation.","authors":"Shixuan Wang,Jian Li,Peiyu Zeng,Xu Han,Jinshu Zhang,Xiaoya Liu,Weiqiao Xia,Zhexing Duan,Wei Liu,Shaoqing Xiao,Qiang Fu,Qi Zhang,Junpeng Lu,Zhenhua Ni","doi":"10.1021/acs.jpclett.5c00826","DOIUrl":"https://doi.org/10.1021/acs.jpclett.5c00826","url":null,"abstract":"Scalable fabrication of multiple quantum-well (MQW) superlattices via layer-by-layer stacking of two-dimensional (2D) materials remains challenging. Here, we propose a plasma-assisted electrochemical intercalation strategy to overcome this limitation. By intercalating 1-ethyl-3-methylimidazolium (EMIM+) cations into multilayer molybdenum disulfide (MoS2), followed by oxygen plasma intercalation, we achieve large-area (∼100 μm) MQW superlattices with hundreds of active layers. This approach enhances MoS2 photoluminescence (PL) by 2 orders of magnitude, with the PL quantum yield (PLQY) increasing with both excitation power and thickness. The enhancement arises from interlayer-decoupling-induced bandgap directness and electron extraction induced by oxygen plasma, effectively suppressing charge transfer between heterointerfaces. Our findings provide a scalable route for fabricating quasi-MQW superlattices, opening new avenues for photophysics research and next-generation optoelectronics.","PeriodicalId":62,"journal":{"name":"The Journal of Physical Chemistry Letters","volume":"42 1","pages":"5405-5411"},"PeriodicalIF":6.475,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144114174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Prenucleation Clusters Assisting Formation of CdS Quantum Dots in Aqueous Environments 水环境中辅助CdS量子点形成的预成核团簇

IF 6.475 2区化学

The Journal of Physical Chemistry Letters Pub Date : 2025-05-22 DOI: 10.1021/acs.jpclett.5c01007

Yiao Huang, Zhe Wang, Xiaoqin Chen, Chaoran Luan, Kui Yu

引用次数: 0

Infrared Spectroscopic Identification of Mass-Selected Benzonitrile Ions in Neon Matrices: Astrochemical Implications. 红外光谱识别氖基质中大量选择的苯腈离子：天体化学意义。

IF 6.475 2区化学

The Journal of Physical Chemistry Letters Pub Date : 2025-05-22 DOI: 10.1021/acs.jpclett.5c00918

Wen-Jian Huang,Sheng-Lung Chou,Chih-Hao Chin,Shu-Yu Lin,Yu-Jong Wu

引用次数: 0

Prenucleation Clusters Assisting Formation of CdS Quantum Dots in Aqueous Environments 水环境中辅助CdS量子点形成的预成核团簇

IF 4.8 2区化学

The Journal of Physical Chemistry Letters Pub Date : 2025-05-22 DOI: 10.1021/acs.jpclett.5c0100710.1021/acs.jpclett.5c01007

Yiao Huang, Zhe Wang, Xiaoqin Chen, Chaoran Luan* and Kui Yu*,

引用次数: 0

dTAT1: An Unnatural Nucleoside Exhibiting Low Photocytotoxicity for Genetic Code Expansion dTAT1：一种对遗传密码扩展具有低光细胞毒性的非天然核苷

IF 6.475 2区化学

The Journal of Physical Chemistry Letters Pub Date : 2025-05-22 DOI: 10.1021/acs.jpclett.5c00763

Chris Acquah, Sourav Kanti Seth, Chuang Feng, Steffen Jockusch, Liraz Levi, Nitza V. Falcón-Cruz, Lingjun Li, Carlos E. Crespo-Hernández

引用次数: 0

Phonon Scattering and Thermal Transport in PbSe and Medium Entropy Thermoelectric PbSe0.5Te0.25S0.25 with Defects of Different Dimensions 含不同尺寸缺陷的PbSe和介质熵热电PbSe0.5Te0.25S0.25中的声子散射和热输运

IF 6.475 2区化学

The Journal of Physical Chemistry Letters Pub Date : 2025-05-22 DOI: 10.1021/acs.jpclett.5c00740

Shuang Lyu, Xingzhong Cao, Yanguang Zhou, Yue Chen

{"title":"Phonon Scattering and Thermal Transport in PbSe and Medium Entropy Thermoelectric PbSe0.5Te0.25S0.25 with Defects of Different Dimensions","authors":"Shuang Lyu, Xingzhong Cao, Yanguang Zhou, Yue Chen","doi":"10.1021/acs.jpclett.5c00740","DOIUrl":"https://doi.org/10.1021/acs.jpclett.5c00740","url":null,"abstract":"Defect engineering has been proven to be effective in optimizing the thermoelectric performance by tailoring the lattice thermal conductivity. Understanding the roles of defects with different dimensions on heat-carrying phonons is crucial. In this study, we investigated the lattice dynamics and thermal transport properties of PbSe and medium entropy PbSe0.5Te0.25S0.25 with different defects, using a machine learning interatomic potential. We find that the introduction of 3% Pb vacancies reduces lattice thermal conductivity (kL) of PbSe by approximately 40%, similar to dislocations (with a density of 2 × 1016 m–2) and nanograins (grain size of 4000 nm3). Vacancies enhance phonon scattering at frequencies above 0.5 THz, whereas dislocations, stacking faults, and grain boundaries primarily hinder phonon propagation below 1.5 THz. In contrast, in PbSe0.5Te0.25S0.25, vacancies have weaker effects on thermal transport suppression due to the intrinsic entropy-induced high-frequency phonon scattering; higher-dimensional defects, such as grain boundaries, stacking faults, and dislocations, are more effective for reducing kL by enhancing phonon scattering at frequencies lower than 1 THz. This study reveals the mechanisms by which defects influence lattice thermal conductivity and provides valuable guidance for optimizing the thermal transport in entropy engineered systems.","PeriodicalId":62,"journal":{"name":"The Journal of Physical Chemistry Letters","volume":"15 1","pages":"5429-5434"},"PeriodicalIF":6.475,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144122514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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