%0 Journal Article
%T Effects of Iodine Doping on Optoelectronic and Chemical Properties of Polyterpenol Thin Films
%A Kateryna Bazaka
%A Mohan V. Jacob
%J Archive of "Nanomaterials".
%D 2017
%R 10.3390/nano7010011
%X 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 ¡Á 10£¿8 S/cm to 1.20 ¡Á 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
%K plasma polymerization
%K iodine doping
%K thin film
%K optical properties
%K organic polymer
%U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5295201/