Interpreting the Ultraviolet Absorption in the Spectrum of 415 nm-Bandgap CdSe Magic-Size Clusters

The Journal of Physical Chemistry Letters
Dikai ZhuKui Yu

Abstract

Colloidal semiconductor magic-size clusters (MSCs), a crucial link between molecular and bulk materials, have attracted attention in the past three decades. However, the identification of their nonbandgap electronic transitions via optical absorption has been challenging due to the possible presence of other-bandgap ensembles in synthetic batches. For CdSe MSC-415, referred to as the optical absorption (1S(e)-1S3/2(h)) in nanometers of wavelength, we report our exploration on the origin of two commonly documented absorption peaks at 381 and 351 nm. We show that the evolution of the two peaks does not synchronize with that of the ∼415 nm peak and seems to be respectively related to the disappearance of MSC-391 and MSC-361. Accordingly, these two peaks detected are probably not due to higher order electronic transitions in MSC-415. The present study shows the necessity of re-evaluating previous experimental results and of developing advanced theoretical models to better understand the quantized energy levels of MSCs.

References

Sep 25, 1998·Science·M BruchezA P Alivisatos
Jan 27, 2004·Nature Materials·Atsuo KasuyaYoshiyuki Kawazoe
Apr 28, 2006·Journal of the American Chemical Society·Jin JooTaeghwan Hyeon
Aug 25, 2007·Journal of the American Chemical Society·Yuichi NegishiTatsuya Tsukuda
Jan 10, 2012·The Journal of Physical Chemistry Letters·Brandi M CossairtJonathan S Owen
May 8, 2014·The Journal of Physical Chemistry Letters·Stacy M CoppElisabeth Gwinn
Jun 21, 2012·The Journal of Physical Chemistry Letters·Yuichi NegishiTatsuya Tsukuda
Jun 21, 2012·The Journal of Physical Chemistry Letters·Joren EilersAndries Meijerink
Oct 6, 2015·Nature Communications·Sung Jun LimAndrew M Smith
Jun 15, 2016·Nature Communications·Kirsten M Ø JensenSimon J L Billinge
Jul 16, 2016·ACS Nano·Franziska MuckelRachel Fainblat
May 24, 2017·The Journal of Physical Chemistry Letters·Takuya KuriharaK Takegoshi

❮ Previous
Next ❯

Citations

Jun 20, 2020·Angewandte Chemie·Hai ZhangKui Yu
Sep 21, 2018·Nanoscale·Nicholas Kirkwood, Klaus Boldt
Dec 11, 2020·Journal of Computational Chemistry·Marc Jäger, Rolf Schäfer
Feb 4, 2021·Accounts of Chemical Research·Li HeKui Yu
Apr 27, 2021·The Journal of Physical Chemistry Letters·W Y Córdoba-CamachoV S Stolyarov
Jun 23, 2018·The Journal of Physical Chemistry Letters·Jing ZhangKui Yu
Feb 1, 2020·ACS Nano·Cristina PalenciaKlaus Boldt
Sep 1, 2018·The Journal of Physical Chemistry Letters·Chaoran LuanKui Yu
Oct 9, 2019·The Journal of Physical Chemistry Letters·Lijia LiKui Yu
Oct 24, 2018·The Journal of Physical Chemistry Letters·Yuanyuan LiuKui Yu
Jan 23, 2020·The Journal of Physical Chemistry Letters·Ke XuJin Zhong Zhang
Jul 23, 2019·The Journal of Physical Chemistry Letters·Chaoran LuanKui Yu
May 15, 2019·The Journal of Physical Chemistry Letters·Jing ZhangKui Yu
May 16, 2019·The Journal of Physical Chemistry Letters·Yuanyuan LiuKui Yu
Dec 17, 2019·The Journal of Physical Chemistry Letters·Shangpu LiuBin Liang
Nov 30, 2021·Angewandte Chemie·Yusha YangKui Yu

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

© 2022 Meta ULC. All rights reserved