Seeded Growth of Highly Luminescent CdSe/CdS Nanoheterostructures with Rod and Tetrapod Morphologies
Lawrence Berkeley National Laboratory · University of California, Berkeley
Abstract
We have demonstrated that seeded growth of nanocrystals offers a convenient way to design nanoheterostructures with complex shapes and morphologies by changing the crystalline structure of the seed. By using CdSe nanocrystals with wurtzite and zinc blende structure as seeds for growth of CdS nanorods, we synthesized CdSe/CdS heterostructure nanorods and nanotetrapods, respectively. Both of these structures showed excellent luminescent properties, combining high photoluminescence efficiency (approximately 80 and approximately 50% for nanorods and nanotetrapods, correspondingly), giant extinction coefficients (approximately 2 x 10(7) and approximately 1.5 x 10(8) M(-1) cm(-1) at 350 nm for nanorods and…
Citation impact
- FWCI
- 21.62
- Percentile
- 100%
- References
- 33
Authors
6- DVDmitri V. TalapinCorresponding
Lawrence Berkeley National Laboratory, University of California, Berkeley
- JNJ.H. Nelson
University of California, Berkeley, Lawrence Berkeley National Laboratory
- EVElena V. Shevchenko
University of California, Berkeley, Lawrence Berkeley National Laboratory
- SAShaul Aloni
University of California, Berkeley, Lawrence Berkeley National Laboratory
- BSBryce Sadtler
Lawrence Berkeley National Laboratory, University of California, Berkeley
Topics & keywords
- Nanorod
- Wurtzite crystal structure
- Photoluminescence
- Materials science
- Nanocrystal
- Luminescence
- Heterojunction
- Nanotechnology
- Affordable and clean energy