کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5372755 | 1504182 | 2017 | 25 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of reducing agents in tuning the third-order optical nonlinearity and optical limiting behavior of reduced graphene oxide
ترجمه فارسی عنوان
اثر عوامل کاهش دهنده در تنظیم ناپایداری نوری درجه سوم و رفتار محدود کننده نوری کاهش اکسید گرافین
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
چکیده انگلیسی
Reduced graphene oxide (rGO) was prepared by reduction method using various reductants like hydrazine, sodium borohydride and ascorbic acid. XRD and Raman analysis confirmed the effective removal of functional groups in GO. SEM revealed that rGO consists of thin crumpled and disordered sheets closely associated with each other. Blue shift in UV-absorption maxima was due to weak interlayer coupling between the layers of rGO. Third order NLO properties of dispersed rGO were measured by Z-scan technique (532Â nm, 50Â mW). Both GO and rGO possess self defocusing, saturable absorption and optical limiting behavior. The nonlinear component of refractive index, absorption coefficient and optical susceptibility were found to be 10â8Â cm2/W, 10â3Â cm/W and 10â6Â esu respectively. Tunability of NLO coefficients with altering functional groups upon rGO was achieved. rGO prepared using hydrazine with high NLO coefficient and excellent durability, signify the scope of utilizing them as optical limiters.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Physics - Volumes 488â489, 11 May 2017, Pages 55-61
Journal: Chemical Physics - Volumes 488â489, 11 May 2017, Pages 55-61
نویسندگان
G. Muruganandi, M. Saravanan, G. Vinitha, M.B. Jessie Raj, T.C. Sabari Girisun,