Design rules for carbazole derivatized: N -alkyl methacrylate polymeric memristors

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F18%3A63518945" target="_blank" >RIV/70883521:28110/18:63518945 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61389013:_____/18:00488615 RIV/70883521:28610/18:63518945

Výsledek na webu

<a href="http://dx.doi.org/10.1039/c7tc05001a" target="_blank" >http://dx.doi.org/10.1039/c7tc05001a</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/c7tc05001a" target="_blank" >10.1039/c7tc05001a</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Design rules for carbazole derivatized: N -alkyl methacrylate polymeric memristors

Popis výsledku v původním jazyce

The alternating current (AC) and direct current (DC) electrical response of a number of n-alkyl methacrylate polymers with a charge transporting pendant carbazole ring were studied. The electrical properties of the polymers were studied as a function of the n-alkyl length with n ranging from 2 to 11. The DC current (I)-voltage (V) response of the polymers was characterized by an erratic and bistable response, while their AC I-V response was a pinched hysteresis loop when measured between 1-100 Hz. For polymers with n &lt; 9, their pinched hysteresis loop was characterized by &quot;jump transitions&quot; indicative of bistability, while polymers with n ≥ 9 had a pinched hysteresis loop that was smooth in appearance. Dielectric spectroscopy on the polymers indicated that as the n-alkyl length is increased, the rotation flexibility of the carbazole moiety is enhanced. The n-alkyl methacrylate polymers with a pendant carbazole ring spaced n ≥ 9 exhibited a lower activation energy and temperature for the onset of ring motion and resulted in polymer-based memristors that exhibited electrical characteristics, such as incrementally adjustable conductivity and are potential candidates for mimicking synaptic plasticity.

Název v anglickém jazyce

Design rules for carbazole derivatized: N -alkyl methacrylate polymeric memristors

Popis výsledku anglicky

The alternating current (AC) and direct current (DC) electrical response of a number of n-alkyl methacrylate polymers with a charge transporting pendant carbazole ring were studied. The electrical properties of the polymers were studied as a function of the n-alkyl length with n ranging from 2 to 11. The DC current (I)-voltage (V) response of the polymers was characterized by an erratic and bistable response, while their AC I-V response was a pinched hysteresis loop when measured between 1-100 Hz. For polymers with n &lt; 9, their pinched hysteresis loop was characterized by &quot;jump transitions&quot; indicative of bistability, while polymers with n ≥ 9 had a pinched hysteresis loop that was smooth in appearance. Dielectric spectroscopy on the polymers indicated that as the n-alkyl length is increased, the rotation flexibility of the carbazole moiety is enhanced. The n-alkyl methacrylate polymers with a pendant carbazole ring spaced n ≥ 9 exhibited a lower activation energy and temperature for the onset of ring motion and resulted in polymer-based memristors that exhibited electrical characteristics, such as incrementally adjustable conductivity and are potential candidates for mimicking synaptic plasticity.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10404 - Polymer science

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Materials Chemistry C

ISSN

2050-7526

e-ISSN

—

Svazek periodika

6

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

13

Strana od-do

2533-2545

Kód UT WoS článku

000428997500016

EID výsledku v databázi Scopus

2-s2.0-85043448231