title: Synthesis and photo-darkening/photo-brightening of blue emitting doped semiconductor nanocrystals.
abstract: By programming the synthetic reaction chemistry, stable blue emitting Cu(i) or Ag(i) doped Al(iii) co-doped ZnS (Al,Cu:ZnS or Al,Ag:ZnS) semiconductor nanocrystals are designed. Further, the photostability of the obtained intense blue-violet emission is studied, and the effects of doping/co-doping are correlated. Finally, it is revealed that the strong binding surface ligand 1-dodecanethiol and Al(iii) co-doping play pivotal roles in achieving such stable blue emitting doped nanocrystals.
authors.affiliation: Department of Materials Science and Centre for Advanced Materials, Indian Association for the Cultivation of Science, Kolkata, 700032, India. camnp@iacs.res.in.
authors.forename: Suresh
authors.initials: S
authors.lastname: Sarkar
authors.forename: Amit K
authors.initials: AK
authors.lastname: Guria
authors.forename: Biplab K
authors.initials: BK
authors.lastname: Patra
authors.forename: Narayan
authors.initials: N
authors.lastname: Pradhan