The Mechanism of Manipulating Chirality and Chiral Sensing Based on Chiral Plexcitons in a Strong-Coupling Regime DOI Creative Commons
Xiongyu Liang, Kun Liang,

Xuyan Deng

и другие.

Nanomaterials, Год журнала: 2024, Номер 14(8), С. 705 - 705

Опубликована: Апрель 18, 2024

Manipulating plasmonic chirality has shown promising applications in nanophotonics, stereochemistry, sensing, and biomedicine. However, to reconfigure chirality, the strategy of constructing chiral systems with a tunable morphology is cumbersome complicated apply for integrated devices. Here, we present simple effective method that can also manipulate control light-matter interactions only via strong coupling between nanoparticles excitons. This paper presents plexcitonic system consisting L-shaped nanorod dimers achiral molecule The circular dichroism (CD) spectra our strong-coupling be calculated by finite element simulations. We found formation plexcitons significantly modulate CD spectra, including appearance new hybridized peaks, double Rabi splitting, bisignate anti-crossing behaviors. phenomenon explained extended coupled-mode theory. Moreover, explored this enantiomer ratio sensing using properties spectra. linear dependence on ratio. Our work provides facile efficient nanosystems, deepens understanding facilitates development devices sensing.

Язык: Английский

Cu2+-Dominated Chirality Transfer from Chiral Molecules to Concave Chiral Au Nanoparticles DOI

Jinling Wan,

Lichao Sun,

Xuehao Sun

и другие.

Journal of the American Chemical Society, Год журнала: 2024, Номер 146(15), С. 10640 - 10654

Опубликована: Апрель 3, 2024

Foreign ions as additives are of great significance for realizing excellent control over the morphology noble metal nanostructures in state-of-the-art seed-mediated growth method; however, they remain largely unexplored chiral synthesis. Here, we report on a Cu2+-dominated strategy that can direct concave Au nanoparticles with C3-dominant centers. The introduction trace amounts Cu2+ process is found to dominate chirality transfer from molecules nanoparticles, leading formation VC geometry. Both experimental and theoretical results further demonstrate correlation between nanoparticle structure optical nanoparticle. ion by selectively activating deposition atoms along [110] [111] directions, facilitating VC. We be employed generate variety enriched geometric desired chiroptical properties. Concave also exhibit appealing catalytic activity selectivity toward electrocatalytic oxidation enantiomers comparison helicoidal nanoparticles. ability tune controlled manner simply manipulating opens up promising creating nanomaterials increasing architectural diversity chirality-dependent applications.

Язык: Английский

Процитировано

24
Circularly polarized OLEDs from chiral plasmonic nanoparticle-molecule hybrids DOI Creative Commons

Jiapeng Zheng,

Yúang Fu, Jing Wang

и другие.

Nature Communications, Год журнала: 2025, Номер 16(1)

Опубликована: Фев. 15, 2025

Abstract Organic light-emitting diodes (OLEDs) supporting the direct emission of circularly polarized (CP) light are essential for numerous technologies. The realization CP-OLEDs with large dissymmetry ( g EL ) factors and high external quantum efficiencies (EQEs) has been accepted as a considerable challenge. Here we demonstrate efficient based on assembly chiral plasmonic nanoparticles (NPs) supramolecular aggregates. NPs serve scaffold optical nanoantenna to modulate absorption chromophores. We employ different construct various dominated by excitons or plasmons. CP-OLED showing EQE 2.5% factor 0.31 is achieved, result multiscale chirality transfer, enhancement, suppression overshoot effect. proposed schemes compatible current manufacturing technology OLEDs. This work demonstrates that can be promising candidates in photoelectric devices.

Язык: Английский

Процитировано

1
Discrete and dimeric chiral plasmonic nanorods: intrinsic chirality and extrinsic chirality DOI
Weiwei Fu, J. Chen, Shunping Zhang

и другие.

Journal of Materials Chemistry C, Год журнала: 2024, Номер 12(25), С. 9139 - 9145

Опубликована: Янв. 1, 2024

The advanced synthetic methodologies for discrete chiral Au nanorods promote understanding the effect of structure parameters, intrinsic chirality and extrinsic on plasmonic couplings.

Язык: Английский

Процитировано

6
Unraveling the Origin of Reverse Plasmonic Circular Dichroism from Discrete Bichiral Au Nanoparticles DOI
Jian Yang,

Lichao Sun,

Xuehao Sun

и другие.

Nano Letters, Год журнала: 2024, Номер 24(37), С. 11706 - 11713

Опубликована: Сен. 4, 2024

Bichiral plasmonic nanoparticles exhibited intriguing geometry-dependent circular dichroism (CD) reversal; however, the crucial factor that dominates CD is still unclear. Combined with spectroscopy and theoretical multipole analysis, we demonstrate originates from excitation of electric quadrupolar plasmons. Moreover, a comparative study two distinct modes reveals correlation between sign local geometric handedness at hotspots, thereby establishing structure-property relationship in bichiral nanoparticles. The reverse attributed to opposite directions wavelength shift plasmon upon changing particle geometry. By finely tuning size nanoparticles, can further reveal dependence on Our work sheds light physical origin provides important guidelines for design chiral toward chirality-dependent applications.

Язык: Английский

Процитировано

5
Strong light–matter coupling between excitons and chiral quasi-bound states in the continuum in van der Waals metasurfaces DOI

Zhonghong Shi,

Houjiao Zhang,

Zhang‐Kai Zhou

и другие.

Chinese Optics Letters, Год журнала: 2024, Номер 22(10), С. 103602 - 103602

Опубликована: Янв. 1, 2024

Язык: Английский

Процитировано

5
Chiral Au–Pd Alloy Nanorods with Tunable Optical Chirality and Catalytically Active Surfaces DOI
Chuang Liu, Lichao Sun,

Guizeng Yang

и другие.

Small, Год журнала: 2023, Номер 20(23)

Опубликована: Дек. 27, 2023

Abstract Integrating the plasmonic chirality with excellent catalytic activities in hybrid nanostructures provides a promising strategy to realize chiral nanocatalysis toward many chemical reactions. However, controllable synthesis of catalytically active nanoparticles tailored geometries and compositions remains significant challenge. Here it is demonstrated that Au–Pd alloy nanorods tunable optical surfaces can be achieved by seed‐mediated coreduction growth method. Through manipulating inducers, Au selectively transform into two different intrinsically distinct geometric chirality. By further adjusting several key synthetic parameters, chirality, composition, geometry are fine‐tailored. More importantly, exhibit appealing as well polarization‐dependent plasmon‐enhanced nanozyme activity, which has great potential for plasmon‐induced photochemistry.

Язык: Английский

Процитировано

11
Room Temperature Plexcitonic Optical Chirality Based on Spontaneous Symmetry Breaking Plasmonic Nanoparticles DOI Open Access
Chengyi Zhang, Jie Zhou, Jialong Peng

и другие.

Laser & Photonics Review, Год журнала: 2025, Номер unknown

Опубликована: Март 4, 2025

Abstract The Plasmon‐exciton strong coupling systems have attracted growing interests due to their powerful ability in manipulating the atomic energy levels, generating coherent quantum eigenstates, and offering promising applications communications, catalysis beyond. Chirality divides plasmon into two intriguing states that enable lots of new physical effects applications. However, between chiral excitons remains largely unexplored. This study demonstrates room‐temperature from one plasmon‐exciton system composed J‐aggregates nominally‐achiral gold nanocubes (AuNCs). Through establishing single‐particle polarization scattering measurement system, this work observes distinct Rabi splitting anti‐crossing behavior both g‐factor spectra, which are verified by numerical simulations with half‐hollow Gaussian beam excitations. in‐depth multi‐dipole theory analysis further reveals im‐perfect geometry AuNCs induces crossed in‐plane dipoles superposition results chiroptical effect, while strong‐coupling changes dipole strength phase, leads a Rabi‐like spectra. Furthermore, develops quasi‐static multipole better understand plexcitonic behavior. These findings provide deeper insights optical chirality, will advance development next‐generation devices.

Язык: Английский

Процитировано

0
Perspectives of chiral nanophotonics: from mechanisms to biomedical applications DOI Creative Commons
Seongmin Im, S. Hamed Shams Mousavi, Yun‐Sheng Chen

и другие.

Deleted Journal, Год журнала: 2024, Номер 1(1)

Опубликована: Дек. 4, 2024

Язык: Английский

Процитировано

3
Molecular Insights into Supramolecular Self-Assembly of Chiral BODIPYs toward Enhanced Chiral Optical Activity DOI
Yurong Yang, Jiarui Li,

Huacheng Li

и другие.

The Journal of Physical Chemistry C, Год журнала: 2025, Номер unknown

Опубликована: Апрель 6, 2025

Язык: Английский

Процитировано

0
Manipulation of Chiral Nonlinear Optical Effect by Light–Matter Strong Coupling DOI
Daichi Okada, Fumito Araoka

Nano Letters, Год журнала: 2024, Номер 24(24), С. 7443 - 7450

Опубликована: Июнь 5, 2024

Light–matter strong coupling (LMSC) is an intriguing state in which light and matter are hybridized inside a cavity. It increasingly recognized as excellent way to control material properties without any chemical modification. Here, we show that the LMSC powerful for manipulating chiral nonlinear optical (NLO) effects through investigation of second harmonic generation (SHG) circular dichroism. At upper polariton band LMSC, addition enhancement SHG by more than 1 order magnitude, responsivity handedness circularly polarized was largely modified, where sign inversion increase dissymmetry factor were achieved. Quarter waveplate rotation analysis revealed clearly influenced coefficients associated with chirality NLO process also contributed magnetic dipole interactions. This study demonstrated serves great platform controlling magneto-optics.

Язык: Английский

Процитировано

2