Rewritable organic films for near-field recording

Hyo Won Lee, Young Mi Kim, Dong Ju Jeon, Eunkyoung Kim, Jeongyong Kim, Kangho Park

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Photochromic thin films were prepared for near-field recording. Acetyl substituted diarylethene were synthesized from 1,2-bis(2-methylbenzo[b]thiophene-3-yl)hexafluorocyclopentene in one step. Transparent and homogeneous thin films were coated on a substrate by vacuum deposition method. A colorless vacuum deposited diarylethene film turned to deep red hue upon exposure to a UV light. Near-field scanning optical microscopy (NSOM) was used to characterize nanoscale color change of the films. NSOM images showed distinct recording mark by 514 nm laser with mark speed of 30 ms. The records were completely erased upon excitation with a UV light, and rewritable with visible light (514 nm) on a UV activated colored film.

Original languageEnglish
Pages (from-to)289-293
Number of pages5
JournalOptical Materials
Volume21
Issue number1-3
DOIs
Publication statusPublished - 2003 Jan

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Computer Science(all)
  • Atomic and Molecular Physics, and Optics
  • Spectroscopy
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Electrical and Electronic Engineering

Cite this

Lee, H. W., Kim, Y. M., Jeon, D. J., Kim, E., Kim, J., & Park, K. (2003). Rewritable organic films for near-field recording. Optical Materials, 21(1-3), 289-293. https://doi.org/10.1016/S0925-3467(02)00152-0