title: Enhanced photorefractive performance of polymeric composites through surface plasmon effects of gold nanoparticles.
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.
authors: Jongwan
authors: J
authors: Choi
authors: Seok-Hwan
authors: SH
authors: Ji
authors: Chil-Sung
authors: CS
authors: Choi
authors: Jin-Woo
authors: JW
authors: Oh
authors: Felix Sunjoo
authors: FS
authors: Kim
authors: Nakjoong
authors: N
authors: Kim