Area-selective surface modification of si substrates with a fluorescent organophosphonic acid using the differences in reactivities of their surface terminal groups

Taro Asami, Naokazu Idota, Yoshiyuki Sugahara

Research output: Contribution to journalArticlepeer-review

Abstract

Area-selective surface modification of Si substrates bearing OH- and H-terminated areas by fluorescent 1-pyrenylphosphonic acid (PYPA) was achieved using chlorobenzene at 140 °C for 2 h in an autoclave. The OH-terminated area was successfully modified, as shown by X-ray photoemission spectroscopy and contact angle measurement, while no reaction proceeded between PYPA and the H-terminated area. SiO2 nanoparticles were reacted with PYPA under the same conditions to form SiOP bonds, suggesting that dehydration coupling proceeded between the OH-terminated area and PYPA.

Original languageEnglish
Pages (from-to)1010-1013
Number of pages4
JournalChemistry Letters
Volume46
Issue number7
DOIs
Publication statusPublished - 2017

Keywords

  • Area-selective surface modification
  • Fluorescent organophosphoric acid
  • Si substrate

ASJC Scopus subject areas

  • Chemistry(all)

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