Organic memristors: Exploring polymers with carbazole functional side groups
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F24%3A63588678" target="_blank" >RIV/70883521:28610/24:63588678 - isvavai.cz</a>
Alternative codes found
RIV/70883521:28110/24:63588678
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Organic memristors: Exploring polymers with carbazole functional side groups
Original language description
Newly prepared n-alkyl methacrylate and dithienopyrrole polymers with carbazole functional side groups have been demonstrated to have memristive properties. Polymers with different backbone structures, side chain lengths and various substituents on the carbazole functional group were prepared. The influence of the chemical structure of these polymers on both the physical properties ( energy profile, thermal, dielectric, and photophysical) and memristive properties was studied. As-prepared polymers were further utilised to create two-terminal electronic devices for electrical measurements by depositing a thin polymer layer onto ITOcoated glass by spin-coating or direct electropolymerization and then depositing a layer of aluminium. The DC I-V response ofthe polymer-based devices was characterized by an erratic and bi-stable response, while their AC I-V response exhibited a pinched hysteresis loop when measured between 1-100 Hz. For polymers with rigid structure (high glass transition temperature (Tg) caused by short n-alkyl side chain or bulky side groups ), their pinched hysteresis loop was characterized by "jump transitions" indicative of hi-stability, while polymers with loose structure (low Tg) had a pinched hysteresis loop that was smooth in appearance. The later mentioned polymer-based devices could transition through a multitude of conductance states when exposed to voltage-varying pulses, allowing the device to exhibit spike-timing-dependent-plasticity.
Czech name
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Czech description
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Classification
Type
O - Miscellaneous
CEP classification
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OECD FORD branch
10404 - Polymer science
Result continuities
Project
<a href="/en/project/GA24-10384S" target="_blank" >GA24-10384S: Polymer memristor with neurosynaptic properties</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů