Nonlinear optical behavior of neodymium mono- and bi-nuclear phthalocyanines linked to zinc oxide nanoparticles and incorporated into poly acrylic acid

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• 作者：Kutloano Edward Sekhosana ; Edith Amuhaya ; Tebello Nyokong ; ^{t.nyokong@ru.ac.za" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Phthalocyanine ; Nonlinear optics ; Second-order hyperpolarizability ; Third-order susceptibility ; Poly acrylic acid
• 刊名：Polyhedron
• 出版年：2016
• 出版时间：17 February 2016
• 年：2016
• 卷：105
• 期：Complete
• 页码：159-169
• 全文大小：2339 K

文摘

Syntheses of bis{23-(3,4-di-yloxybenzoic acid)-(2(3), 9(10), 16(17), 23(24))-(hexakis-pyridin-3-yloxy phthalocyaninato)} dineodymium (III) acetate (3) and 2(3), 9(10), 16(17), 23(24)-(tetrapyridin-3-yloxy phthalocyaninato) neodymium (III) acetate (4) as well as their conjugates with ZnO nanoparticles (conjugates 6, 7 and 8) are presented. Thin films of conjugate 6 (where complex 3 is linked to ZnO nanoparticles via an amide bond) gave the best third-order susceptibility (5.89 × 10⁻⁸ esu), second-order hyperpolarizability (2.53 × 10⁻²⁵ esu) and the lowest limiting threshold values (0.12 J cm⁻²). The nonlinear behavior is enhanced in solid state when compared to solution.