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

Kód výsledku v IS VaVaI

RIV/61389013:_____/18:00488660 - isvavai.cz

Výsledek na webu

http://dx.doi.org/10.1021/acs.macromol.7b02543

DOI - Digital Object Identifier

10.1021/acs.macromol.7b02543

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

GA15-14791S: J- agregáty polovodivého polymeru: generace a ukládání elektřiny zesílené použitím vody a světla

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

Macromolecules

ISSN

0024-9297

e-ISSN

—

Svazek periodika

51

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

5

Strana od-do

2227-2231

Kód UT WoS článku

000428712300009

EID výsledku v databázi Scopus

2-s2.0-85044627432