Abstract
We report the first method for synthesizing binary semiconductor materials by scanning probe block copolymer lithography (SPBCL) in desired locations on a surface. In this work, we utilize SPBCL to create polymer features containing a desired amount of Cd 2+, which is defined by the feature volume. When they are subsequently reacted in H 2S in the vapor phase, a single CdS nanoparticle is formed in each block copolymer (BCP) feature. The CdS nanoparticles were shown to be both crystalline and luminescent. Importantly, the CdS nanoparticle sizes can be tuned since their diameters depend on the volume of the originally deposited BCP feature.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1022-1025 |
| Number of pages | 4 |
| Journal | Nano Letters |
| Volume | 12 |
| Issue number | 2 |
| DOIs | |
| State | Published - Feb 8 2012 |
Keywords
- Scanning probe
- block copolymer
- cadmium sulfide nanoparticles
- lithography
- semiconductor
ASJC Scopus subject areas
- Condensed Matter Physics
- Bioengineering
- Chemistry(all)
- Materials Science(all)
- Mechanical Engineering
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Cite this
Giam, L. R., He, S., Horwitz, N. E., Eichelsdoerfer, D. J., Chai, J., Zheng, Z., Kim, D., Shim, W., & Mirkin, C. A. (2012). Positionally defined, binary semiconductor nanoparticles synthesized by scanning probe block copolymer lithography. Nano Letters, 12(2), 1022-1025. https://doi.org/10.1021/nl204233r