Remarkable ability to modulate light transmittance and block heat in the bleached state combined in one electrochromic material: highly crystalline polyaniline

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F18%3A00488660" target="_blank" >RIV/61389013:_____/18:00488660 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1021/acs.macromol.7b02543" target="_blank" >http://dx.doi.org/10.1021/acs.macromol.7b02543</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acs.macromol.7b02543" target="_blank" >10.1021/acs.macromol.7b02543</a>

Result language
angličtina
Original language name
Remarkable ability to modulate light transmittance and block heat in the bleached state combined in one electrochromic material: highly crystalline polyaniline
Original language description
It is revealed that chain ordering strongly affects optical and electrochromic properties of polyaniline. Polyaniline film with 70% crystalline phase combines the remarkable ability to modulate the light transmittance (coloration efficiency of 150 cm2/C with a contrast ratio approaching 10 at λ = 633 nm) with an unprecedented “bright-cool” bleached state, where the polymer is highly transparent to light but has low transmittance for the most intense near-infrared irradiation. Compared to the recently developed dual-band electrochromic materials in which modulation of the near-infrared absorption is realized through plasmonic electrochromism of WO3–x nanoparticles, the highly crystalline polyaniline film demonstrates in the “bright-cool” regime a 10 times lower transmittance at 900 nm (1.6 vs 16%) with the same level (≈60%) of transmittance in the visible region. The coloration efficiency found here is almost 3-fold higher than commonly communicated for polyaniline.
Czech name
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Czech description
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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

Project
<a href="/en/project/GA15-14791S" target="_blank" >GA15-14791S: J-like supramolecular assemblies of semiconducting polymer: the electricity generation and storage enhanced by water and light</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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