Self-assembly of oriented metal bisphosphonate multilayers with potential nonlinear optical properties

Grace Ann Neff, Astrid C. Zeppenfeld, Bethany Klopfenstein, Catherine J. Page

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

We are investigating a method for synthesizing oriented layered thin film structures that exhibit nonlinear optical properties. This method involves self-assembly of metal bisphosphonate multilayers on gold and silicon substrates. Multilayers are characterized via optical ellipsometry, diffuse reflectance and attenuated total reflectance FTIR, and grazing angle X-ray diffraction. To incorporate nonlinear optical activity into self-assembled films, we use α,ω-bisphosphonates containing aromatic π systems sandwiched between donor and acceptor groups. In order to maximize the overall polarizability of the film, the polarizable bisphosphonate molecules must preferentially bind in only one orientation. To accomplish this, one of the terminal phosphonate groups of the molecule is protected (in ester form). After binding the free phosphonic acid end, the terminal ester is converted to a phosphonic acid group by hydrolysis with bromotrimethylsilane (BTMS). Layering is continued by binding a metal layer and repeating the cycle. Films prepared via this route do exhibit second harmonic generation, but apparently incomplete deprotection of each layer leads to increasing disorder with increasing number of layers.

Original languageEnglish (US)
Title of host publicationMaterials Research Society Symposium - Proceedings
PublisherMaterials Research Society
Pages269-274
Number of pages6
Volume351
StatePublished - 1994
Externally publishedYes
EventProceedings of the 1994 MRS Symposium - San Francisco, CA, USA
Duration: Apr 4 1994Apr 8 1994

Other

OtherProceedings of the 1994 MRS Symposium
CitySan Francisco, CA, USA
Period4/4/944/8/94

Fingerprint

Diphosphonates
Self assembly
Multilayers
Optical properties
Metals
Esters
Organophosphonates
Molecules
Acids
Ellipsometry
Silicon
Harmonic generation
Gold
Hydrolysis
X ray diffraction
Thin films
Substrates
phosphonic acid

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

Cite this

Neff, G. A., Zeppenfeld, A. C., Klopfenstein, B., & Page, C. J. (1994). Self-assembly of oriented metal bisphosphonate multilayers with potential nonlinear optical properties. In Materials Research Society Symposium - Proceedings (Vol. 351, pp. 269-274). Materials Research Society.

Self-assembly of oriented metal bisphosphonate multilayers with potential nonlinear optical properties. / Neff, Grace Ann; Zeppenfeld, Astrid C.; Klopfenstein, Bethany; Page, Catherine J.

Materials Research Society Symposium - Proceedings. Vol. 351 Materials Research Society, 1994. p. 269-274.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Neff, GA, Zeppenfeld, AC, Klopfenstein, B & Page, CJ 1994, Self-assembly of oriented metal bisphosphonate multilayers with potential nonlinear optical properties. in Materials Research Society Symposium - Proceedings. vol. 351, Materials Research Society, pp. 269-274, Proceedings of the 1994 MRS Symposium, San Francisco, CA, USA, 4/4/94.
Neff GA, Zeppenfeld AC, Klopfenstein B, Page CJ. Self-assembly of oriented metal bisphosphonate multilayers with potential nonlinear optical properties. In Materials Research Society Symposium - Proceedings. Vol. 351. Materials Research Society. 1994. p. 269-274
Neff, Grace Ann ; Zeppenfeld, Astrid C. ; Klopfenstein, Bethany ; Page, Catherine J. / Self-assembly of oriented metal bisphosphonate multilayers with potential nonlinear optical properties. Materials Research Society Symposium - Proceedings. Vol. 351 Materials Research Society, 1994. pp. 269-274
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