[23p-E303-1~15] 3.12 Nanoscale optical science and near-field optics

[23p-E303-9] Scanning Tunneling Spectroscopy of Photochromic Diarylethene Single Crystals

〇(B)Kei Wakabayashi¹, Kazuharu Uchiyama¹, Kingo Uchida², Makoto Naruse³, Hirokazu Hori¹ (1.Univ. of Yamanashi, 2.Ryukoku Univ., 3.The Univ. of Tokyo)

Keywords:photochromism, scanning tunneling spectroscopy, diarylethene

Nanometer-scale photochromism in photochromic single crystals is potential for the realization of nano-optics-based natural intelligent devices. In previous studies, we found that photoisomerization at the nanoscale in diarylethene crystals gives rise to a complex chain of photoisomerization due to the composite of photoisomerization and crystalline distortion. In this study, we have measured the changes in electronic properties of nanometer-size photochromic crystals due to photoisomerization by scanning tunneling spectroscopy, aiming to connect this nanoscale photoisomerization to macroscopic functional applications.