کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1520632 1511786 2016 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Phosphorescence of CdS nanoparticles in polymer matrix as an indication of host-guest interaction
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Phosphorescence of CdS nanoparticles in polymer matrix as an indication of host-guest interaction
چکیده انگلیسی


• Long-lasting low-temperature photoluminescence decay in nano-CdS/PVA is observed.
• Characteristic time about 1.7 s for photoluminescence decay is measured.
• Accumulation of photo-excited carriers in traps within the PVA is shown.
• Transfer of the excitation from PVA to CdS nanoparticles is shown.

We report on the observation of the long-lasting low-temperature photoluminescence decay in the hybrid system nano-CdS/polyvinyl alcohol with a characteristic time of about 1.7 s. The origin of the phosphorescence is ascribed to the accumulation of photo-excited excitons in the traps within the polymeric matrix with subsequent transfer of the excitation to the embedded CdS nanoparticles.

Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 177, 1 July 2016, Pages 379–383
نویسندگان
, , , , ,