Effects of surface ligands on the charge memory characteristics of CdSe/ZnS nanocrystals in TiO2 thin film | Zendy

Seung-Hee Kang | Zendy; Ch. Kiran Kumar | Zendy; Zonghoon Lee | Zendy; Velimir Radmilović | Zendy; EuiTae Kim | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Effects of surface ligands on the charge memory characteristics of CdSe/ZnS nanocrystals in TiO2 thin film

Author(s) -

Seung-Hee Kang,

Ch. Kiran Kumar,

Zonghoon Lee,

Velimir Radmilović,

EuiTae Kim

Publication year - 2009

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.3259929

Subject(s) - quantum dot , nanocrystal , materials science , colloid , thin film , surface charge , electron , layer (electronics) , nanoparticle , dipole , optoelectronics , nanotechnology , electron affinity (data page) , chemistry , molecule , physics , organic chemistry , quantum mechanics

harge memory characteristics have been systematically studied based on colloidal CdSe/ZnS nanocrystal quantum dots (QDs) embedded in similar to 50 nm-thick TiO2 film. Ligand-capped QDs showed negligible electron charging effect, implying that the electron affinity of QDs was significantly decreased by surface dipole layer surrounding QDs. In contrast, the hole charging was affected by the carrier injection blocking effect of the surface ligands. Efficient electron and hole charging characteristics were realized by removing the surface ligands via H-2 plasma treatment.open4

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research