Carbon based Y-type molecules for application in nonlinear optics

Autor:	Ling Yang, Jiu Chen, Yuan-Yuan He, Cui-Cui Yang, Weiqi Li, Wei Quan Tian, Xue-Lian Zheng
Rok vydání:	2020
Předmět:	chemistry.chemical_classification Materials science Nonlinear optics Hyperpolarizability chemistry.chemical_element General Chemistry Electron acceptor Azulene Molecular physics chemistry.chemical_compound chemistry Atom Materials Chemistry Molecule Thermal stability Carbon
Zdroj:	Journal of Materials Chemistry C. 8:1879-1886
ISSN:	2050-7534 2050-7526
DOI:	10.1039/c9tc06023e
Popis:	Inducing new nonlinear optical (NLO) properties while maintaining the thermal stability of carbon based nanomaterials broadens the application of carbon nanomaterials in opto-electronics. In the present work, polar azulene defects are introduced in Y-type carbon based molecules to induce polarity thus enhancing the second order NLO properties (for example, the static first hyperpolarizability of Y-type carbon based molecules with azulene defects reaches 4.18 × 10−30 esu per heavy atom while that of p-nitroaniline is 2.97 × 10−30 esu per heavy atom). The addition of an electron acceptor at the heptagon end modifies the π electron distribution of Y-type carbon based molecules and significantly enhances the static first hyperpolarizability from 1.73 × 10−30 esu per heavy atom to 8.87 × 10−30 esu per heavy atom, much larger than that of similarly synthesized NLO compounds. The cause of such enhancement by introduction of electron acceptors has been scrutinized.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::53d2822000f5d7d330ea0b5f19a11cb5 https://doi.org/10.1039/c9tc06023e Zobrazit plný text záznamu