Effects of Iodine Doping on Optoelectronic and Chemical Properties of Polyterpenol Thin Films.
Nanomaterials (Basel)
; 7(1)2017 Jan 13.
Article
em En
| MEDLINE
| ID: mdl-28336848
ABSTRACT
Owing to their amorphous, highly cross-liked nature, most plasma polymers display dielectric properties. This study investigates iodine doping as the means to tune optoelectronic properties of plasma polymer derived from a low-cost, renewable resource, i.e., Melaleuca alternifolia oil. In situ exposure of polyterpenol to vapors of electron-accepting dopant reduced the optical band gap to 1.5 eV and increased the conductivity from 5.05 × 10-8 S/cm to 1.20 × 10-6 S/cm. The increased conductivity may, in part, be attributed to the formation of charge-transfer complexes between the polymer chain and halogen, which act as a cation and anion, respectively. Higher levels of doping notably increased the refractive index, from 1.54 to 1.70 (at 500 nm), and significantly reduced the transparency of films.
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Base de dados:
MEDLINE
Idioma:
En
Revista:
Nanomaterials (Basel)
Ano de publicação:
2017
Tipo de documento:
Article
País de afiliação:
Austrália