DOI

Dependence of polarizability (LP) and hyperpolarizability (HP) of linear oligomers on the number of monomers in the chain is analyzed. A critical review of previous studies revealed two main issues. Firstly, the specific (per one chain unit) values of both LP and HP monotonously increase along with the chain length, and secondly, both dependencies approach the limit values in sufficiently long chains. A model describing such behavior is proposed. The model parameters are LP and HP of an isolated chain unit and a cross-term, which couples the dipole moments of neighboring units. These parameters have a clear physical meaning. It is shown that the theoretical predictions provided by the model agree well both with the results of accurate quantum-mechanical calculations and with experimental data.

Язык оригиналаанглийский
Номер статьи012029
Страницы (с-по)012029
Число страниц4
ЖурналJournal of Physics: Conference Series
Том1482
Номер выпуска1
DOI
СостояниеОпубликовано - 25 мар 2020
Событие21st Russian Youth Conference on Physics of Semiconductors and Nanostructures, Opto- and Nanoelectronics, RYCPS 2019 - St. Petersburg, Российская Федерация
Продолжительность: 25 ноя 201929 ноя 2019

    Предметные области Scopus

  • Физика и астрономия (все)

ID: 73026869