Coexistence of WORM and RRAM Resistive Switching in Coumarin Derivatives: A Comprehensive Performance Analysis

ACS Omega, Journal Year: 2025, Volume and Issue: unknown

Published: March 13, 2025

Over the past few years, organic small molecules (OSM) having a π-conjugated heteroatomic aromatic backbone along with terminal donor-acceptor (D-A) groups have emerged as one of most promising materials for resistive switching (ORS) devices. In this research, (RS) properties two rationally synthesized coumarin derivatives, 7-(2-(benzylamino)ethoxy)-4-methyl-2H-chromen-2-one (CAMN1) and 7-(2-(4-methoxyphenylamino)ethoxy)-4-methyl-2H-chromen-2-one (CAMN2), been exhaustively studied. The CAMN1-based ORS device exhibited WORM RS behavior an excellent yield 97.22%, while CAMN2-based showed both well RRAM depending on compliance current (CC) perfect 100%. Both devices superior read endurance order 104 retention time at least 3 × s very good memory window or more. Moreover, long-term physical thermal stability. cyclability in mode operation was found to be 116 cycles. DFT-based calculations absorption spectroscopic studies reveal role intra/intermolecular charge transfer (CT) presence methoxy (-OCH3) group CAMN2 molecule has identified key reason behind observed difference behaviors molecules.

Language: Английский

Challenges of anti-solvent method for quasi-2D perovskites: The role of steric hinderance from the Phenethylammonium (PEA+) spacer cation

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: 1028, P. 180680 - 180680

Published: April 28, 2025

Language: Английский