Ambient stable perylene diimide anion radical for high conductivity and potential application as chemiresistive sensor. Issue 5 (12th August 2020)

• Record Type: Journal Article
• Authors: Zhao, Yuzhen; Zhao, Yang; Kang, Xiaoxi; Miao, Zongcheng; Zhang, Haiquan
• Is Part Of: Pigment & resin technology. Volume 49:Issue 5(2020)
• Page Start: 415
• Page End: 419
• Publication Date: 2020-08-12
• Subjects: Sensor -- Electronic properties -- High conductivity -- Perylene diimide; Protective coatings -- Periodicals; 667.62305
• DOI: 10.1108/PRT-03-2020-0018
• Languages: English
• ISSNs: 0369-9420

Abstract

Abstract : Purpose: This paper aims to compare the electronic properties of perylene diimide derivatives (DFPDI) and its anion radical (DFPDI. - k. + ) thin film by drop-coating of organic molecules on the interdigitated electrodes. Design/methodology/approach: The authors compared the electronic properties of perylene diimide derivatives and its anion radical by drop-coating of organic molecules on interdigitated electrodes. Significantly, the current of perylene diimide derivatives anion radical increased by 2∼3 orders of magnitude compared to perylene diimide derivatives under a bias of 5 V, and the maximal current of anion radical that from tetrahydrofuran solution can reach 3.6 mA. Furthermore, DFPDI. - k. + thin film showed time-resistance sensitivity for acetic acid. When DFPDI. - k. + thin film was placed in acetic acid of 3.1 × 105 ppm, the current was decreased 46 times under a bias of 6 V after 8 min. Findings: We developed the new method to prepare ambient stable perylene diimide derivatives anion radical, which shows sensitivity of absorption spectra to acid. Originality/value: Perylene diimide derivatives anion radical thin film showed time-resistance sensitivity for acetic acid, suggesting potential application of perylene diimide derivatives anion radical as acid sensor.