Doping as a Strategy for Modulating Crystallinity and Optical Properties of Large Area Films of Semiconducting 2D-COFs

ACS Applied Materials & Interfaces 2026

View at publisher
Authors: Diksha Srivastava, Jyotirban Dey, Soumyajit Rajak, Showkat Hassan Mir, Jayant Kumar Singh, Manabendra Chandra, Thiruvancheril G. Gopakumar
DOI: 10.1021/acsami.6c01858
Cited by: 1
References: 52

Abstract

-phenylenediamine (PDA), benzene-1,3,5-tricarboxaldehyde (TCA), and melamine (Me) dopant, leading to significant alterations in both crystallinity and optical properties. Notably, the optical band gap shows a strong blue shift from ≈2.2 eV for the undoped 2D-COF to ≈2.6 eV for the optimally Me-doped 2D-COF. In addition, for the optimum ratio of melamine to PDA and TCA, we observed large, highly crystalline domains within the film. The effect of melamine doping on the structural and electronic modifications of the films was characterized using various spectroscopic and microscopic techniques and density functional theory calculations.

Fields of Study & Subjects

Covalent Organic Framework Applications Luminescence and Fluorescent Materials Heme Oxygenase-1 and Carbon Monoxide

Publication details

Journal / source
ACS Applied Materials & Interfaces
Publisher
American Chemical Society (ACS)
Volume
18
Issue
18
Pages
27018–27029
Publication date
28 April 2026
Language
EN