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Enhanced photorefractive performance of polymeric composites through surface plasmon effects of gold nanoparticles
- Issue Date
- Aug-2014
- Publisher
- OPTICAL SOC AMER
- Citation
- OPTICS LETTERS, v.39, no.15, pp 4571 - 4574
- Pages
- 4
- Journal Title
- OPTICS LETTERS
- Volume
- 39
- Number
- 15
- Start Page
- 4571
- End Page
- 4574
- ISSN
- 0146-9592
1539-4794
- Abstract
- We investigated the photorefractivity enhancement of polymeric composites by introducing gold nanoparticles (NPs). The gold NPs enhance the photocharge generation rate of sensitizers through plasmon resonance coupling achieved between NPs and sensitizers. Systematic studies show that the presence of gold NPs has increased photocharge generation efficiency, photoconductivity, diffraction efficiency, refractive index modulation, and photorefractive (PR) grating formation rate. The gold-NP-doped PR sample exhibits 2 times larger photocharge generation efficiency and photoconductivity, and 2.5 times faster PR grating formation rate compared to the control sample without the NPs. (C) 2014 Optical Society of America
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