کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8036414 1518061 2013 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Transient reflectivity on vertically aligned single-wall carbon nanotubes
ترجمه فارسی عنوان
بازتابندگی گذرا در نانولوله های کربنی تک دیواره به صورت عمودی تراز
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
چکیده انگلیسی
One-color transient reflectivity measurements are carried out on two different samples of vertically aligned single-wall carbon nanotube bundles and compared with the response recently published on unaligned bundles. The negative sign of the optical response for both samples indicates that the free electron character revealed on unaligned bundles is only due to the intertube interactions favored by the tube bending. Neither the presence of bundles nor the existence of structural defects in aligned bundles is able to induce a free-electron like behavior of the photoexcited carriers. This result is also confirmed by the presence of non-linear excitonic effects in the transient response of the aligned bundles.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin Solid Films - Volume 543, 30 September 2013, Pages 51-55
نویسندگان
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