Spectroscopic and device aspects of nanocrystal quantum dots
The field of nanocrystal quantum dots (QDs) is already more than 30 years old, and yet
continuing interest in these structures is driven by both the fascinating physics emerging …
continuing interest in these structures is driven by both the fascinating physics emerging …
Light-driven and phonon-assisted dynamics in organic and semiconductor nanostructures
Rapid advances in chemical synthesis and fabrication techniques have led to a boost in
manufacturing and design of novel nanostructured materials that exhibit unique and often …
manufacturing and design of novel nanostructured materials that exhibit unique and often …
Momentarily trapped exciton polaron in two-dimensional lead halide perovskites
Abstract Two-dimensional (2D) lead halide perovskites with distinct excitonic feature have
shown exciting potential for optoelectronic applications. Compared to their three …
shown exciting potential for optoelectronic applications. Compared to their three …
Nonblinking, Intense Two-Dimensional Light Emitter: Monolayer WS2 Triangles
Monolayer WS2 (1L-WS2), with a direct band gap, provides an ideal platform to investigate
unique properties of two-dimensional semiconductors. In this work, light emission of a 1L …
unique properties of two-dimensional semiconductors. In this work, light emission of a 1L …
Stepwise quenching of exciton fluorescence in carbon nanotubes by single-molecule reactions
Single-molecule chemical reactions with individual single-walled carbon nanotubes were
observed through near-infrared photoluminescence microscopy. The emission intensity …
observed through near-infrared photoluminescence microscopy. The emission intensity …
Photon antibunching in the photoluminescence spectra of a single carbon nanotube
We report the first observation of photon antibunching in the photoluminescence from single
carbon nanotubes. The emergence of a fast luminescence decay component under strong …
carbon nanotubes. The emergence of a fast luminescence decay component under strong …
Breaking the phonon bottleneck in semiconductor nanocrystals via multiphonon emission induced by intrinsic nonadiabatic interactions
We observe ultrafast 1 P-to-1 S intraband relaxation in PbSe and CdSe nanocrystals (NCs)
that have distinct energy spectra. While ultrafast dynamics in CdSe NCs has typically been …
that have distinct energy spectra. While ultrafast dynamics in CdSe NCs has typically been …
Electronic structure and chemical nature of oxygen dopant states in carbon nanotubes
We performed low temperature photoluminescence (PL) studies on individual oxygen-
doped single-walled carbon nanotubes (SWCNTs) and correlated our observations to …
doped single-walled carbon nanotubes (SWCNTs) and correlated our observations to …
Structural dependence of excitonic optical transitions and band-gap energies in carbon nanotubes
The optical transitions of semiconducting carbon nanotubes have been ascribed to excitons.
Here we use two-photon excitation spectroscopy to measure exciton binding energies, as …
Here we use two-photon excitation spectroscopy to measure exciton binding energies, as …
Optoelectronic Properties of Single‐Wall Carbon Nanotubes
Single‐wall carbon nanotubes (SWCNTs), with their uniquely simple crystal structures and
chirality‐dependent electronic and vibrational states, provide an ideal laboratory for the …
chirality‐dependent electronic and vibrational states, provide an ideal laboratory for the …