Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5399248 | Journal of Luminescence | 2016 | 18 Pages |
Abstract
The photoluminescence (PL) from semiconductor quantum dots can show a “PL bright point”, that is the PL from as prepared quantum dots is maximum at a particular size. In this work we show that, for CdTe quantum dots, upconversion photoluminescence (UCPL) originating from nonlinear absorption shows a similar “UCPL bright point”. The PL and UCPL bright points occur at nearly the same size. The existence of a UCPL bright point has important implications for upconversion microscopy applications.
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
S. Ananthakumar, J. Jayabalan, Asha Singh, Salahuddin Khan, S. Moorthy Babu, Rama Chari,