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Ring-in-a-Triangle Nanoframes: Integrating with Intra- and Interhotspots for Highly Amplified Near-Field Focusing
Publication Type: Periodical
Source(s): Nano Letters; February 2022, Vol. 22 Issue: 4 p1734-1740, 7p
Abstract: The development of a stepwise synthetic strategy for Au ring-in-a-triangle nanoframes with a high degree of structural solidity is essential to the advancement of highly amplified near-field focusing. This strategy leads to the formation of an inscribe...
Overcoming Nanoscale Inhomogeneities in Thin-Film Perovskites via Exceptional Post-annealing Grain Growth for Enhanced Photodetection
Publication Type: Periodical
Source(s): Nano Letters; February 2022, Vol. 22 Issue: 3 p979-988, 10p
Abstract: Antisolvent-assisted spin coating has been widely used for fabricating metal halide perovskite films with smooth and compact morphology. However, localized nanoscale inhomogeneities exist in these films owing to rapid crystallization, undermining their...
Organic-2D Material Heterostructures: A Promising Platform for Exciton Condensation and Multiplication
Publication Type: Periodical
Source(s): Nano Letters; October 2021, Vol. 21 Issue: 20 p8888-8894, 7p
Abstract: We predict that high temperature Bose–Einstein condensation of charge transfer excitons can be achieved in organic-two-dimensional (2D) material heterostructures, at ∼50–100 K. Unlike 2D bilayers that can be angle-misaligned, organic-2D systems general...
Mapping Activity-Dependent Quasi-stationary States of Mitochondrial Membranes with Graphene-Induced Energy Transfer Imaging
Publication Type: Periodical
Source(s): Nano Letters; October 2021, Vol. 21 Issue: 19 p8244-8249, 6p
Abstract: Graphene-induced energy transfer (GIET) was recently introduced for sub-nanometric axial localization of fluorescent molecules. GIET relies on near-field energy transfer from an optically excited fluorophore to a single sheet of graphene. Recently, we ...
Multimode Time-Resolved Superresolution Microscopy Revealing Chain Packing and Anisotropic Single Carrier Transport in Conjugated Polymer Nanowires
Publication Type: Periodical
Source(s): Nano Letters; May 2021, Vol. 21 Issue: 10 p4255-4261, 7p
Abstract: Here, we developed a novel, multimode superresolution method to perform full-scale structural mapping and measure the energy landscape for single carrier transport along conjugated polymer nanowires. Through quenching of the local emission, the motion ...
Visualization of Thermal Transport within and between Carbon Nanotubes
Publication Type: Periodical
Source(s): Nano Letters; April 2021, Vol. 21 Issue: 7 p3134-3138, 5p
Abstract: Despite the excellent thermal properties of individual carbon nanotubes (CNTs), the thermal characteristics of macroscopic CNT assemblies are poor. This is probably due to the presence of numerous nontrivial intertube boundaries. Currently, clarity on ...
Emergent Spin Dynamics Enabled by Lattice Interactions in a Bicomponent Artificial Spin Ice
Publication Type: Periodical
Source(s): Nano Letters; March 2021, Vol. 21 Issue: 5 p1921-1927, 7p
Abstract: Artificial spin ice (ASI) networks are arrays of nanoscaled magnets that can serve both as models for frustration in atomic spin ice as well as for exploring new spin-wave-based strategies to transmit, process, and store information. Here, we exploit ...
Tunable Phases of Moiré Excitons in van der Waals Heterostructures
Publication Type: Periodical
Source(s): Nano Letters; December 2020, Vol. 20 Issue: 12 p8534-8540, 7p
Abstract: Stacking monolayers of transition metal dichalcogenides into a heterostructure with a finite twist-angle gives rise to artificial moiré superlattices with a tunable periodicity. As a consequence, excitons experience a periodic potential, which can be ...
Free-Standing Kinked Silicon Nanowires for ProbingInter- and Intracellular Force Dynamics.
Publication Type: Academic Journal
Source(s): Nano Letters. Aug2015, Vol. 15 Issue 8, p5492-5498. 7p.
Abstract: Siliconnanowires (SiNWs) have emerged as a new class of materials with importantapplications in biology and medicine with current efforts having focusedprimarily on using substrate bound SiNW devices. However, developingdevices capable of free-standing...
Pressure Dependence of Intra- and Interlayer Excitons in 2H-MoS2Bilayers
Publication Type: Periodical
Source(s): Nano Letters; 20230101, Issue: Preprints
Abstract: The optical and electronic properties of multilayer transition metal dichalcogenides differ significantly from their monolayer counterparts due to interlayer interactions. The separation of individual layers can be tuned in a controlled way by applying...