Mn-doped nanocrystals in light-emitting diodes: energy-transfer to obtain electroluminescence from quantum dots
| Title | Mn-doped nanocrystals in light-emitting diodes: energy-transfer to obtain electroluminescence from quantum dots |
| Publication Type | Journal Article |
| Year of Publication | 2010 |
| Authors | Rath, AKumar, Bhaumik, S, Pal, AJ |
| Journal | Applied Physics Letters |
| Volume | 97 |
| Issue | 11 |
| Pagination | Article number: 113502 |
| Date Published | SEP |
| Abstract | We fabricatelight-emitting diodes(LEDs) based on Mn-doped ZnSnanocrystals along with hole-transporting bis(3-methylphenyl)--diphenyl-benzidine (TPD). With Mn-doping, ZnSnanostructures exhibit a strong photoluminescence. The LEDs exhibit electroluminescence(EL) from Mn-doped ZnSquantum dots and TPD. In order to open up channels for energy-transfer from TPD to quantum dots and to achieve EL from only the nanoparticles, we grow core-shell nanoparticles with Mn-doped ZnS in the core and CdS as the shell layer. Excitons formed in TPD can now transfer their energy directly to the shell-layer to yield EL from only the nanoparticles. |
| DOI | 10.1063/1.3489099 |
| Funding Agency | Council of Scientific & Industrial Research (CSIR) - India |
| Type of Journal (Indian or Foreign) | Foreign |
| Impact Factor (IF) | 3.820 |
Divison category:
Physical and Materials Chemistry