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A selenophene-containing conjugated organic ligand for two-dimensional halide perovskites.

Zitang WeiKang WangWenchao ZhaoYao GaoQixuan HuKe ChenLetian Dou
Published in: Chemical communications (Cambridge, England) (2021)
A selenophene-containing conjugated organic ligand, 2-(4'-methyl-5'-(5-(3-methylthiophen-2-yl)selenophen-2-yl)-[2,2'-bithiophen]-5-yl)ethan-1-aminium (STm), was synthesized and incorporated into a Sn(II)-based two-dimensional perovskite, (STm)2SnI4. The band offset between the perovskite and ligand can be fine-tuned by introducing the STm ligand. Both field-effect transistor and light-emitting diode devices based on (STm)2SnI4 films exhibit high performance and enhanced operational stability.
Keyphrases
  • solar cells
  • room temperature
  • photodynamic therapy
  • high efficiency
  • water soluble