Viewing optical processes at the nanoscale: combining scanning tunneling microscopy and optical spectroscopy

S Wieghold, L Nienhaus - The Journal of Physical Chemistry C, 2023 - ACS Publications
The combination of optical spectroscopy and scanning tunneling microscopy techniques has
the potential to yield the unambiguous single-molecule level insight required to fully …

[HTML][HTML] Photoelectrochemical biosensor based on SiW12@CdS quantum dots for the highly sensitive detection of HPV 16 DNA

Y Cheng, C Sun, Y Chang, J Wu, Z Zhang… - … in Bioengineering and …, 2023 - frontiersin.org
A highly sensitive biosensor for detecting HPV 16 DNA was prepared based on Keggin-type
polyoxometalate (SiW12)-grafted CdS quantum dots (SiW12@ CdS QDs) and colloidal gold …

Excited-state imaging of single particles on the subnanometer scale

A Wallum, HA Nguyen… - Annual Review of Physical …, 2020 - annualreviews.org
At the intersection of spectroscopy and microscopy lie techniques that are capable of
providing subnanometer imaging of excited states of individual molecules or nanoparticles …

Mapping emission from clusters of CdSe/ZnS nanoparticles

DP Ryan, PM Goodwin, CJ Sheehan… - The Journal of …, 2018 - ACS Publications
We have carried out correlated super-resolution and SEM imaging studies of clusters of
CdSe/ZnS nanoparticles containing up to ten particles to explore how the fluorescence …

Nanoscale imaging of quantum dot dimers using time-resolved super-resolution microscopy combined with scanning electron microscopy

MK Dunlap, DP Ryan, PM Goodwin… - …, 2023 - iopscience.iop.org
Time-resolved super-resolution microscopy was used in conjunction with scanning electron
microscopy to image individual colloidal CdSe/CdS semiconductor quantum dots (QD) and …

Highly enhanced Quantum dot light-emitting diode performance by controlling energy resonance in inorganic insertion layers

Z Meng, Z Yang, Y Ye, Z Zeng, H Hong, S Ye, Z Cheng… - Optical Materials, 2024 - Elsevier
Quantum-dot light-emitting diodes (QLED) have become a research trend in the field of new
displays due to their low cost, wide color gamut, narrow bandwidth, and characteristics that …

Ensemble Effects in the Temperature‐Dependent Photoluminescence of Silicon Nanocrystals

M Jakob, M Javadi, JGC Veinot… - … A European Journal, 2019 - Wiley Online Library
In this work the temperature‐dependent photoluminescence of alkyl‐capped silicon
nanocrystals with mean diameters of between 3 and 9 nm has been investigated. The …

STM imaging of localized surface plasmons on individual gold nanoislands

HA Nguyen, P Banerjee, D Nguyen… - The Journal of …, 2018 - ACS Publications
An optically modulated scanning tunneling microscopy technique developed for
measurement of single-molecule optical absorption is used here to image the light …

[HTML][HTML] Orientation-dependent imaging of electronically excited quantum dots

D Nguyen, JJ Goings, HA Nguyen, J Lyding… - The Journal of …, 2018 - pubs.aip.org
We previously demonstrated that we can image electronic excitations of quantum dots by
single-molecule absorption scanning tunneling microscopy (SMA-STM). With this technique …

Nonadditive Interactions Unlock Small-Particle Mobility in Binary Colloidal Monolayers

JG Raybin, RB Wai, NS Ginsberg - ACS nano, 2023 - ACS Publications
We examine the organization and dynamics of binary colloidal monolayers composed of
micron-scale silica particles interspersed with smaller-diameter silica particles that serve as …