From photochromism to electrochromism: New property of diarylethene BTT and its fluorescent turn-on derivative BTTO4

Key Points

• Electrochromism of diarylethene derivative BTTO4 is significantly enhanced, with marked changes in transparency.
• The fluorescent turn-on capability of BTTO4 demonstrates a broad range of applications in optoelectronics.
• Observational analysis of diarylethene properties provides insights into their electronic behaviors and potential uses.
• These findings highlight the need for further studies to fully understand underlying mechanisms in diarylethene derivatives.