Abstract
Ionically self-assembled monolayers (ISAMs) have recently been shown to spontaneously exhibit a polar ordering that gives rise to substantial second order nonlinear optical response. The deposition of ISAMs has been studied in situ via second harmonic generation. This is a particularly sensitive probe of the growth of nanometer-thick films since the centrosymmetry of the immersion solutions, the substrate, and the container yields no SHG contribution from these bulk components. Upon immersion in the NLO-active polyelectrolyte solution, the SHG rises sharply over the first minute. When a film is immersed into salt water, the SHG decreases significantly only to be restored when the salt solution is replaced with deionized water.
Original language | English (US) |
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Pages (from-to) | 313-318 |
Number of pages | 6 |
Journal | Materials Research Society Symposium - Proceedings |
Volume | 707 |
State | Published - 2002 |
Externally published | Yes |
Event | Self-Assembly Processes in Materials - Boston,MA, United States Duration: Nov 26 2001 → Nov 30 2001 |
ASJC Scopus subject areas
- General Materials Science
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering