کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
175751 458920 2015 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis and two-photon absorption properties of truxene-cored chromophores with functionalized pyrazine units fused as the end-groups
ترجمه فارسی عنوان
سنتز و خواص جذب دو فوتون از کروموفورهای مغناطیسی کروموزم با واحدهای پریازین کاربردی به عنوان گروه های انتهایی
کلمات کلیدی
جذب دو فوتون، تروکسن، پیازین، فلوئورن، فلورسانس منفرد دو فوتون، محدود کردن قدرت و ثبات نوری
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی


• A series of multi-polar chromophores based on the structural motif of pyrazine-fused truxene has been synthesized.
• These model fluorophores manifest strong and wide dispersed two-photon absorption in the near infrared region.
• Optical-power-limiting/stabilization behavior of a representative dye molecule is demonstrated.

A new set of model chromophores derived from a truxene core fused with varied number and size of functionalized pyrazine units was designed and synthesized for the tentative exploration of possible connections between the molecular structure and their linear/nonlinear optical properties. The initial experimental results have indicated that these model compounds not only possess strong and widely dispersed two-photon absorption (2 PA) within the near-IR region but also show the ascending overall 2 PA when the molecular structure varies with increase in complexity and molecular weight, which implies that both the number of branches and the size of π-framework are important factors to the molecular 2 PA in this model chromophore system. On the other hand, the studied model chromophores also manifest very good photostability within their two-photon active spectral region even under a prolonged irradiation of IR laser pulses. In addition, a representative chromophore is selected to demonstrate optical power-limiting and power-stabilization performance against nanosecond laser pulses.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Dyes and Pigments - Volume 120, September 2015, Pages 99–111
نویسندگان
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