Please use this identifier to cite or link to this item:
|Title:||Enhanced tunability of the multiphoton absorption cross-section in seeded CdSe/CdS nanorod heterostructures|
|Source:||Xing, G., Chakrabortty, S., Chou, K.L., Mishra, N., Huan, C.H.A., Chan, Y., Sum, T.C. (2010-08-09). Enhanced tunability of the multiphoton absorption cross-section in seeded CdSe/CdS nanorod heterostructures. Applied Physics Letters 97 (6) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.3479048|
|Abstract:||We present a method to separately tune the multiphoton absorption (MPA) and multiphoton excited photoluminescence using semiconductor core/enlarged-shell quantum dots (QDs), where the enlarged shell greatly enhances the MPA cross-sections while varying the core size facilitates emission wavelength selectivity. Following two-photon absorption (2PA) primarily in the shell and ultrafast charge-carrier localization to the core, luminescence occurs. We exemplify the validity of this method with CdSe/CdS nanorod heterostructures and find that the 2PA cross-section is enlarged to ∼1.4× 106 GM for 180 nm nanorods (with 800 nm, 150 fs laser pulse excitation) which is two to four orders larger than that of CdSe QDs. © 2010 American Institute of Physics.|
|Source Title:||Applied Physics Letters|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Feb 15, 2018
WEB OF SCIENCETM
checked on Feb 6, 2018
checked on Feb 13, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.