Aligned Inclusion of n-Propionic Acid Tethering Hemicyanine into Silica Zeolite Film for Second Harmonic Generation


  • We thank the Ministry of Science and Technology (Creative Research Initiatives Program), the Sogang University (Internal Research Fund), and the Quantum Photonic Science Research Center at Hanyang University for supporting this work.


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Propionic acid tethering hemicyanine dye molecules preferentially enter the channels of silicalite-1 films with the head part first, in water in the presence of tetrabutylammonium hydroxide (this is shown schematically in the figure), giving rise to high-concentration hemicyanine-incorporating silicalite films with high second-harmonic-generation efficiency.