Tuning the absorption and emission of CdSe and ZnS core-shell nanoparticles by laser radiation

Ignacio F. Gallardo; Kay Hoffmann; John Keto

doi:10.1117/12.795285

4 September 2008 Tuning the absorption and emission of CdSe and ZnS core-shell nanoparticles by laser radiation

Ignacio F. Gallardo, Kay Hoffmann, John Keto

Proceedings Volume 7030, Nanophotonic Materials V; 70300Z (2008) https://doi.org/10.1117/12.795285
Event: NanoScience + Engineering, 2008, San Diego, California, United States

Abstract

CdSe and ZnS core-shell nanoparticles made by LAM (Laser Ablation of Microparticles) show photoluminesence (PL) peaks in a region of wavelengths around 400 nm. Control over the size and PL peak position is obtained by irradiating the nanoparticles multiple times. In LAM, micropaticle powder passes through an aerosol generator and then into a laser ablation glass cell, where a laser pulse (high energy excimer laser) ablates the microparticle aerosol. Nanoparticles are formed after condensation. At this stage the nanoparticles can be covered with a second material or irradiated multiple times to change their size. The size distribution of these particles is successfully investigated with TEM (Transmission Electron Microscopy). PL blue shifts are seen as the mean size decreases.

Citation Download Citation

Ignacio F. Gallardo, Kay Hoffmann, and John Keto "Tuning the absorption and emission of CdSe and ZnS core-shell nanoparticles by laser radiation", Proc. SPIE 7030, Nanophotonic Materials V, 70300Z (4 September 2008); https://doi.org/10.1117/12.795285

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
6 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Nanoparticles

Particles

Absorption

Zinc

Laser ablation

Transmission electron microscopy

Aerosols

Show All Keywords

Keywords/Phrases

Search In:

Publication Years