Organic Charge-Transfer Complexes for Near-Infrared-Triggered Photothermal Materials

Lei An, Liangyu Zheng, Chao Xu, Ziqi Zhao, Fan Gao, Wenjun Wang, Changjin Ou, Xiaochen Dong

Research output: Contribution to journalReview articlepeer-review

28 Scopus citations

Abstract

Organic photothermal materials excited by near-infrared (NIR) light display promising applications in biomedicine, optoelectronic devices, water purification, and so on. However, the most NIR responsive organic photothermal materials are in the mire of laborious synthesis, high cost, and limited functions. The newly emerging charge-transfer complexes (CTCs) are promising photothermal materials to solve the issues and are receiving much attention. Compared with traditional photothermal agents, CTCs possess strong NIR absorption, high photo-to-thermal conversion efficiency, simple synthesis, and function-directed material design. Herein, the latest advances in NIR-excited CTCs for photothermal agents are systematically summarized. First, the basic structure–performance relationships are introduced. Then, several important factors affecting the photothermal properties of the CTCs are discussed from the sight of photophysics, and a comprehensive comparison is made among the nanoparticle systems. Finally, organic photothermal CTCs are highlighted as a multifunctional platform for applications and the perspective is given.

Original languageEnglish
Article number2200220
JournalSmall Structures
Volume4
Issue number1
DOIs
StatePublished - Jan 2023

Keywords

  • charge-transfer complexes
  • nonradiative transitions
  • photothermal materials
  • stacking modes
  • water purification

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