Work

Dual‐Function Bis‐Tetraphenylethenes for Selective Metal Ion and Glutathione Detection and Current Transformer Application

Year: 2025

Type: article

Abstract: This study reports the synthesis of bis‐substituted tetraphenylethenes (TPEs) and the investigation of their photophysical and photochemical properties. Utilizing the aggregation‐induced emission characteristic of TPEs, this study demonstrates that BPh‐TPE and BRh‐TPE function as “turn‐off” fluorescent sensors for detecting Cu 2+ and Hg 2+ /Ag + , respectively, exhibiting quenched fluorescence in the presence of these ions. The limits of detection (LODs) for Cu 2+ , Hg 2+ , and Ag + are determined to be 299, 522 nM, and 1.58 μM, respectively. Interestingly, the probes also show “turn‐on” fluorescence upon the addition of glutathione (GSH) in the presence of Cu 2+ or Hg 2+ . Specifically, the LOD for GSH using the BPh‐TPE‐Cu 2+ complex is 457 nM. Practical applicability is confirmed via visual color changes on filter paper and in water samples. These findings highlight the potential of these TPE derivatives for detecting copper, mercury, silver ions, and GSH in environmental water. Additionally, Al/organic layer/ p ‐Si heterojunction devices incorporating spin‐coated TPE layers are fabricated. Their electrical behaviors are analyzed through current‐voltage and current‐time measurements under varying light conditions. Transient photocurrent analysis indicates strong photoresponse, supporting their suitability for optoelectronic and photovoltaic applications.

Source: ChemistryOpen

DOI: 10.1002/open.202500045

Authors: Sinan Bayindir, Sebiha Akar, Abdullah S. Hussein, Ferruh Lafzi, İkram Orak

Institutions: Bingöl University, Salahaddin University-Erbil, Atatürk University

Language: English

Topic: Molecular Sensors and Ion Detection

Subfield: Spectroscopy

Field: Chemistry

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,790

Funders: Atatürk Üniversitesi, Bingöl Üniversitesi