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Abstract <p>Structural and sensing characteristics of zinc(II) 2,11,20,29-tetra-<i>tert-</i>butyl<i>-</i>2,3-naphthalocyanine (ZnNc(<i>t</i>Bu)<sub>4</sub>) films are studied. The chemiresistive sensing response of ZnNc(<i>t</i>Bu)<sub>4</sub> films to ammonia in concentrations below the threshold limit value (TLV) in the working zone′s air is considered for the first time. It is shown that the annealing of ZnNc(<i>t</i>Bu)<sub>4</sub> films in air at 250&#xa0;°C for 3&#xa0;h causes a phase transition to a stable high-temperature β-phase, increases the crystallite size, and enhances the sensing response to ammonia by 40-45&#xa0;times, depending on its concentration.</p>

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Structural and Sensing Properties of Tetra-tert-Butyl Substituted Zinc(II) Naphthalocyanine Films

  • 期刊论文

  • 发表日期：

    2025年9月1日

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  • M. S. Polyakov,
  • A. S. Sukhikh,
  • D. D. Klyamer,
  • T. V. Basova

摘要

Abstract

Structural and sensing characteristics of zinc(II) 2,11,20,29-tetra-tert-butyl-2,3-naphthalocyanine (ZnNc(tBu)4) films are studied. The chemiresistive sensing response of ZnNc(tBu)4 films to ammonia in concentrations below the threshold limit value (TLV) in the working zone′s air is considered for the first time. It is shown that the annealing of ZnNc(tBu)4 films in air at 250 °C for 3 h causes a phase transition to a stable high-temperature β-phase, increases the crystallite size, and enhances the sensing response to ammonia by 40-45 times, depending on its concentration.