Strong electronic coupling and ultrafast electron transfer between PbS quantum dots and TiO2 nanocrystalline films.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 22182013.
- Also identified by DOI 10.1021/nl2035783.
- No licence information is recorded for this record.
- Because redistribution is not established, this page shows the abstract only. Follow the links below for the full text.
Abstract
Hot carrier and multiple exciton extractions from lead salt quantum dots (QDs) to TiO(2) single crystals have been reported. Implementing these ideas on practical solar cells likely requires the use of nanocrystalline TiO(2) thin films to enhance the light harvesting efficiency. Here, we report 6.4 ± 0.4 fs electron transfer time from PbS QDs to TiO(2) nanocrystalline thin films, suggesting the possibility of extracting hot carriers and multiple excitons in solar cells based on these materials.
Medical subject headings
- Crystallization
- Lead
- Membranes, Artificial
- Nanostructures
- Quantum Dots
- Selenium Compounds