Scholarlink

<p>Developing smart luminescent materials with off-on switchable responsiveness, which enables dark-to-bright state transitions in response to external stimuli, has garnered great interest across various domains. However, most of the reported systems with only monochromatic switching have limited their expansion toward advanced applications. Herein, a pressure-treated strategy is introduced to initially non-emissive isonicotinic acid (INA), achieving controllable switching from the dark state to high-quality multicolor emissions (i.e., blue, white, and yellow light). Experimental and theoretical analyses reveal that pressure-treated engineering can effectively modulate the intermolecular charge transfer strength within and between layers, enabling controlled emission color switching. Notably, the bright white light with CIE coordinates (0.31, 0.37) and the yellow light with CIE coordinates (0.42, 0.45) are retained under ambient conditions. The findings not only impart new vitality to nonemissive organic small molecules but also offer a new perspective for designing smart luminescent materials with multicolor and controllable properties.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Controllable multicolor emission from initially non-emissive organic molecules by pressure engineering

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年10月2日

查看全文
  • Zhihao Xiao,
  • Weibin Wang,
  • Jingkun Yu,
  • Yunfeng Yang,
  • Haifeng Zhu,
  • Siyu Lu,
  • Zhennan Wu,
  • Xinyi Yang,
  • Bo Zou

摘要

Developing smart luminescent materials with off-on switchable responsiveness, which enables dark-to-bright state transitions in response to external stimuli, has garnered great interest across various domains. However, most of the reported systems with only monochromatic switching have limited their expansion toward advanced applications. Herein, a pressure-treated strategy is introduced to initially non-emissive isonicotinic acid (INA), achieving controllable switching from the dark state to high-quality multicolor emissions (i.e., blue, white, and yellow light). Experimental and theoretical analyses reveal that pressure-treated engineering can effectively modulate the intermolecular charge transfer strength within and between layers, enabling controlled emission color switching. Notably, the bright white light with CIE coordinates (0.31, 0.37) and the yellow light with CIE coordinates (0.42, 0.45) are retained under ambient conditions. The findings not only impart new vitality to nonemissive organic small molecules but also offer a new perspective for designing smart luminescent materials with multicolor and controllable properties.