Aggregation induced emission enhancement (AIEE) of fluorenyl appended Schiff base : A turn on fluorescent probe for Al³⁺, and its photovoltaic effect

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• 作者：Uttam Panda^a ; Suman Roy^a ; Debashis Mallick^a ; ¹ ; Animesh Layek^b ; Partha Pratim Ray^b ; Chittaranjan Sinha^a ; ^{c_r_sinha@yahoo.com" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Fluorenyl Schiff base ; Al3+-selective fluorophore ; AIEE ; DSSC fabrication ; DFT computation
• 刊名：Journal of Luminescence
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：181
• 期：Complete
• 页码：56-62
• 全文大小：1721 K

文摘

Fluorenyl-diformyl phenol Schiff (HL) base is spectroscopically characterized and demonstrates aggregation induced emission enhancement (AIEE) upon addition of water to THF solution. Maximum intensity is observed at 90% of water addition at 570 nm. Al³⁺ induced turn-on fluorescence enhancement is observed at 600 nm and the limit of optical detection (LOD) is 6.22x10⁻⁹ M. Isolation of Al(III)-complex and mass spectral measurement shows the formation of phenoxo-bridged dinuclear complex. Applicability for DSSC device fabrication of probe shows photovoltaic efficiency 0.021%. DFT computation of optimized geometry of HL has been used to explain the spectral and photovoltaic activity.