H-shaped oligofluorenes for highly air-stable and low-threshold non-doped deep blue lasing.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 24665075.
- Also identified by DOI 10.1002/adma.201305355.
- 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
H-shaped oligofluorenes as gain media exhibit excellent photo- (large robustness against oxidation) and thermal stabilities in ambient atmosphere for large σe and low-threshold (0.22 nJ pulse(-1) ) deep blue distributed feedback (DFB) lasers. Their amplified spontaneous emission (ASE) thresholds increase less than 3-fold and the emission spectra exhibit almost no shift with film samples annealed up to 200 °C in open air.