title: Morphology modification of silver microstructures fabricated by multiphoton photoreduction.
abstract: We have investigated the morphology modification of silver microstructures fabricated by the multiphoton photoreduction process. The microstructures have been fabricated by a femtosecond laser under different irradiation time and repeated scanning numbers. Trans-4-[4-(dimethylamino)-N-methylstilbazolium] p-tosylate (DAST) was used as photosensitizer and effectively reduced the laser power to 0.66 mW. The increase of the irradiation time and repeated scanning induced more reduction in the multiphoton photoreduction microfabrication process, resulting in the optimization of the linewidth. The fusion of silver nanoparticles was confirmed, which led to the morphology change of silver microstructures for achieving the compact metallic microstructures. The result would provide an important protocol to fabricate the metallic microstructures for the electronic and photonic applications.
authors.affiliation: Laboratory of Organic NanoPhotonics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, No. 29 Zhongguancundonglu, Beijing, 100190, P. R. China.
authors.forename: Wei
authors.initials: W
authors.lastname: Jin
authors.forename: Mei-Ling
authors.initials: ML
authors.lastname: Zheng
authors.forename: Yao-Yu
authors.initials: YY
authors.lastname: Cao
authors.forename: Xian-Zi
authors.initials: XZ
authors.lastname: Dong
authors.forename: Zhen-Sheng
authors.initials: ZS
authors.lastname: Zhao
authors.forename: Xuan-Ming
authors.initials: XM
authors.lastname: Duan