Tunable Electronic Memory Performances Based on Poly(Triphenylamine) and Its Metal Complex via a SuFEx Click Reaction

Abstract

A triphenylamine derivative decorated with an azobenzene group (TDA) was synthesized via a SuFEx click reaction and its polymer, poly(triphenylamine) (PTDA), was polymerized through a redox polymerization. More interestingly, its polymeric metal complex, PTDA‐Fe, can be simply obtained via one‐pot reaction between TDA and FeCl3 owing to TDA showing a strong affinity to the FeIII ion. The sandwich memory device based on PTDA nanofilms as active layers exhibited a binary memory performance. However, the memory device based on its polymeric metal complex exhibited a unique ternary memory behavior. The different memory performances should come from the different conductive mechanism. The mechanism of such ternary memory devices is illustrated based on both the theoretical calculation and experiments. Our work provides new insights into the preparation of novel materials for multilevel memory devices.

Effect of a “Zn Bridge” on the Consecutively Tunable Retention Characteristics of Volatile Random Access Memory Materials

“…1-14) and inorganic [17] (no. [15][16][17][18][19][20][21][22][23][24][25][26] memory materials (the detailed information of these materials are listed in Table S2), the coPIÀ Znx in this work could keep both relatively low energy consumption and misreading rate with a V th of 2 V and ON/OFF ratio above 10 4 . The stability of coPIÀ Znx based memory devices was measured by applying continuous read bias of 1.5 V for both ON and OFF states, as shown in Figure S3.…”

Iterative SuFEx approach for sequence-regulated oligosulfates and its extension to periodic copolymers

“…SuFEx chemistry has exhibited versatile synthetic applications across various fields, encompassing medicinal chemistry 51,52 , radiochemistry 53,54 , and bioconjugation 55,56 . Particularly noteworthy is the expanding utilization of SuFEx-based functional materials in recent years [57][58][59][60][61] . Specifically, the use of polysulfates has shown promise in thin film capacitors, delivering high energy densities 62 .…”

Realizing the Conversion of Resistive Switching Behavior from Binary to Ternary by Adjusting the Charge Traps in the Polymers

“…For inorganic semiconductor memory devices, this multilevel storage behavior is rarely reported in the literature because it is difficult to control the multilevel reliably. On the contrary, organic small molecules and polymer materials have broad application prospects in organic memory. − Li et al have developed a donor–acceptor material containing reduced graphene oxide, which is used in high-performance ternary memory devices. Gu et al synthesized two compounds p , p ′-bis­(2-methoxyl-1,3,4-oxadiazol-5-yl)­diphenyl sulfone and ( p , p ′-bis­(2-aryl-1,3,4-oxadiazol-5-yl)­diphenyl sulfone based on sulfone, which have different electron-donating abilities for donor groups.…”