Coexistence of Electrochromism and Bipolar Nonvolatile Memory in a Single Viologen
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388963%3A_____%2F23%3A00579307" target="_blank" >RIV/61388963:_____/23:00579307 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1021/acsami.3c12489" target="_blank" >https://doi.org/10.1021/acsami.3c12489</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acsami.3c12489" target="_blank" >10.1021/acsami.3c12489</a>
Alternative languages
Result language
angličtina
Original language name
Coexistence of Electrochromism and Bipolar Nonvolatile Memory in a Single Viologen
Original language description
Viologens are fascinating redox-active organic compounds that have been widely explored in electrochromic devices (ECDs). However, the combination of electrochromic and resistive random-access memory in a single viologen remains unexplored. We report the coexistence of bistate electrochromic and single-resistor (1R) memory functions in a novel viologen. A high-performance electrochromic function is achieved by combining viologen (BzV(2+)2PF(6)) with polythiophene (P3HT), enabling a “push-pull“ electronic effect due to the efficient intermolecular charge transfer in response to an applied bias. The ECDs show high coloration efficiency (ca. 1150 +/- 10 cm(2) C-1), subsecond switching time, good cycle stability (>10(3) switching cycles), and low-bias operation (+/- 1.5 V). The ECDs require low power for switching the color states (55 mu W cm(-2) for magenta and 141 mu W cm(-2) for blue color). The random-access memory devices (p(+2)-Si/BzV(2+)2PF(6)/Al) exhibit distinct low and high resistive states with an ON/OFF ratio of similar to 10(3), bipolar and nonvolatile characteristics that manifest good performances, and “Write“-“Read“-“Erase“ (WRE) functions. The charge conduction mechanism of the RRAM device is elucidated by the Poole-Frenkel model where SET and RESET states arise at a low transition voltage (V-T = +/- 1.7 V). Device statistics and performance parameters for both electrochromic and memory devices are compared with the literature data. Our findings on electrochromism and nonvolatile memory originated in the same viologen could boost the development of multifunctional, smart, wearable, flexible, and low-cost optoelectronic devices.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10403 - Physical chemistry
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
ACS Applied Materials and Interfaces
ISSN
1944-8244
e-ISSN
1944-8252
Volume of the periodical
15
Issue of the periodical within the volume
44
Country of publishing house
US - UNITED STATES
Number of pages
11
Pages from-to
51527-51537
UT code for WoS article
001102005500001
EID of the result in the Scopus database
2-s2.0-85177745303