ORCID Profile
0000-0003-2241-9999
Current Organisations
Macquarie University
,
Technische Universiteit Delft
Does something not look right? The information on this page has been harvested from data sources that may not be up to date. We continue to work with information providers to improve coverage and quality. To report an issue, use the Feedback Form.
Publisher: SPIE
Date: 27-02-2020
DOI: 10.1117/12.2549229
Publisher: American Chemical Society (ACS)
Date: 16-06-2023
Publisher: American Chemical Society (ACS)
Date: 19-08-2019
DOI: 10.1021/ACS.JPCLETT.9B01824
Abstract: The fine structure of exciton states in colloidal quantum dots (QDs) results from the compound effect of anisotropy and electron-hole exchange. By means of single-dot photoluminescence spectroscopy, we show that the emission of photoexcited InP/ZnSe QDs originates from radiative recombination of such fine structure exciton states. Depending on the excitation power, we identify a bright exciton doublet, a trion singlet, and a biexciton doublet line that all show pronounced polarization. Fluorescence line narrowing spectra of an ensemble of InP/ZnSe QDs in magnetic fields demonstrate that the bright exciton effectively consists of three states. The Zeeman splitting of these states is well described by an isotropic exciton model, where the fine structure is dominated by electron-hole exchange and shape anisotropy leads to only a minor splitting of the
Publisher: American Chemical Society (ACS)
Date: 08-11-2018
DOI: 10.1021/ACS.NANOLETT.8B03027
Abstract: Fully inorganic cesium lead halide perovskite nanocrystals (NCs) have shown to exhibit outstanding optical properties such as wide spectral tunability, high quantum yield, high oscillator strength as well as blinking-free single photon emission, and low spectral diffusion. Here, we report measurements of the coherent and incoherent exciton dynamics on the 100 fs to 10 ns time scale, determining dephasing and density decay rates in these NCs. The experiments are performed on CsPbBr
Publisher: American Chemical Society (ACS)
Date: 08-02-2019
Publisher: American Physical Society (APS)
Date: 30-07-2019
Publisher: SPIE
Date: 27-02-2019
DOI: 10.1117/12.2510478
No related grants have been discovered for Lorenzo Scarpelli.