01257nas a2200157 4500008004100000245011600041210006900157260000800226300002700234490000700261520064500268100002200913700002000935700001900955856012500974 2010 eng d00aMn-doped nanocrystals in light-emitting diodes: energy-transfer to obtain electroluminescence from quantum dots0 aMndoped nanocrystals in lightemitting diodes energytransfer to o cSEP aArticle number: 1135020 v973 a
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.
1 aRath, Arup, Kumar1 aBhaumik, Saikat1 aPal, Amlan, J. uhttp://library.ncl.res.in/content/mn-doped-nanocrystals-light-emitting-diodes-energy-transfer-obtain-electroluminescence