عرض بسيط للتسجيلة

المؤلفN., Sesha Bamini
المؤلفNěmec, Hynek
المؤلفŽídek, Karel
المؤلفAbdellah, Mohamed
المؤلفAl-Marri, Mohammed J.
المؤلفChábera, Pavel
المؤلفPonseca, Carlito
المؤلفZheng, Kaibo
المؤلفPullerits, Tönu
تاريخ الإتاحة2023-02-02T04:34:11Z
تاريخ النشر2017
اسم المنشورPhysical Chemistry Chemical Physics
المصدرScopus
معرّف المصادر الموحدhttp://dx.doi.org/10.1039/c6cp07509f
معرّف المصادر الموحدhttp://hdl.handle.net/10576/39380
الملخصPhotoinitiated charge carrier dynamics in ZnO nanoparticles sensitized by CdSe quantum dots is studied using transient absorption spectroscopy and time-resolved terahertz spectroscopy. The evolution of the transient spectra shows that electron injection occurs in a two-step process, where the formation of a charge transfer state (occurring in several picoseconds) is followed by its dissociation within tens of picoseconds. The photoconductivity of electrons injected into the ZnO nanoparticles is lower than that of charges photogenerated directly in ZnO. We conclude that the motion of injected electrons in ZnO nanoparticles is strongly influenced by their interaction with positive charges left in the sensitizing quantum dots. the Owner Societies 2017.
راعي المشروعThis work was supported by the Knut and Alice Wallenberg Foundation, Swedish Research Council, Czech Science Foundation (Grant 17-03662S) and Carl Tryggers Foundation in Stockholm (Project CTS 14:390). KZ acknowledges support from NPRP grant #NPRP7-227-1-034 from the Qatar National Research Fund (a member of Qatar Foundation).
اللغةen
الناشرRoyal Society of Chemistry
الموضوعnanoparticles
transient absorption spectroscopy
terahertz spectroscopy
ZnO
العنوانTime-resolved terahertz spectroscopy reveals the influence of charged sensitizing quantum dots on the electron dynamics in ZnO
النوعArticle
الصفحات6006-6012
رقم العدد8
رقم المجلد19
dc.accessType Open Access


الملفات في هذه التسجيلة

Thumbnail

هذه التسجيلة تظهر في المجموعات التالية

عرض بسيط للتسجيلة