Single-molecule interfacial electron transfer in donor-bridge-nanoparticle acceptor complexes

Shengye Jin, Robert C. Snoeberger, Abey Issac, David Stockwell, Victor S. Batista, Tianquan Lian*

*المؤلف المقابل لهذا العمل

نتاج البحث: المساهمة في مجلةمراجعة النظراء

22 اقتباسات (Scopus)

ملخص

Photoinduced interfacial electron transfer (IET) in sulforhodamine B (SRhB)-aminosilane-Tin oxide (SnO2) nanoparticle donor-bridge- acceptor complexes has been studied on a single molecule and ensemble average level. On both SnO2 and ZrO2, the sum of single molecule fluorescence decays agree with the ensemble average results, suggesting complete sampling of molecules under single molecule conditions. Shorter fluorescence lifetime on SnO2 than on ZrO2 is observed and attributed to IET from SRhB to SnO2. Single molecule lifetimes fluctuate with time and vary among different molecules, suggesting both static and dynamic IET heterogeneity in this system. Computational modeling of the complexes shows a distribution of molecular conformation, leading to a distribution of electronic coupling strengths and ET rates. It is likely that the conversion between these conformations led to the fluctuation of ET rate and fluorescence lifetime on the single molecule level.

اللغة الأصليةEnglish
الصفحات (من إلى)14309-14319
عدد الصفحات11
دوريةJournal of Physical Chemistry B
مستوى الصوت114
رقم الإصدار45
المعرِّفات الرقمية للأشياء
حالة النشرPublished - ديسمبر 8 2010
منشور خارجيًانعم

ASJC Scopus subject areas

  • ???subjectarea.asjc.1600.1606???
  • ???subjectarea.asjc.2500.2508???
  • ???subjectarea.asjc.2500.2505???

بصمة

أدرس بدقة موضوعات البحث “Single-molecule interfacial electron transfer in donor-bridge-nanoparticle acceptor complexes'. فهما يشكلان معًا بصمة فريدة.

قم بذكر هذا