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Terephthalic acid‐directed supramolecular Cu( II )‐metallogel for photosensitive semiconducting Schottky diode with promising electronic charge transportation
Author(s) -
Dhibar Subhendu,
Dey Arka,
Majumdar Santanu,
Ray Partha Pratim,
Dey Biswajit
Publication year - 2020
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.6176
Subject(s) - terephthalic acid , adipic acid , materials science , schottky diode , nanocrystalline material , supramolecular chemistry , copper , chemistry , polymer chemistry , diode , nanotechnology , crystallography , metallurgy , crystal structure , optoelectronics , polyester , composite material
Summary Terephthalic acid‐based supramolecular metallogel of Cu(II) (ie, Cu‐TA) is developed by sonicating the mixture of copper(II) acetate monohydrate and terephthalic acid in N , N ‐dimethyl formamide solvent. The rheological study is performed to expose the mechanical property of metallogel. The flake‐like morphological patterns are found through FESEM microstructural investigations. The formation strategy, crystalline nature, and thermal behavior of the Cu‐TA metallogel are also studied. The optical and electrical properties of Cu‐TA metallogel are exhaustively scrutinized, and the measured data show that Cu‐TA metallogel is semiconducting in nature. The electrical analysis indicates that the conductivity of Cu‐TA metallogel increased up to ~four times under illumination (7.49 × 10 −5 S m −1 ) rather than the nonirradiation condition (1.83 × 10 −5 S m −1 ). The measured I ‐ V characteristics of Cu‐TA metallogel‐based thin‐film metal‐semiconductor (MS) junction devices under irradiation and nonirradiation conditions show a nonlinear rectifying behavior, typical of a Schottky diode (SD).