English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We have studied the nature and dynamics of spin-dependent charge carrierrecombination in Tris(8-hydroxyquinolinato) aluminum (Alq$_3$) films in lightemitting diodes at room temperature using continuous wave and pulsedelectrically detected magnetic resonance (EDMR) spectroscopy. We found that theEDMR signal is dominated by an electron-hole recombination process, andanother, weaker EDMR signal whose fundamental nature was investigated. From thepulsed EDMR measurements we obtained a carrier spin relaxation time, $T_2 =45\pm 25$ ns which is much shorter than $T_2$ in conjugated polymers, butrelatively long for a molecule containing elements with high atomic number.Using multi-frequency continuous wave EDMR spectroscopy, we obtained the localhyperfine field distributions for electrons and holes, as well as theirrespective spin-orbit coupling induced g-factor and g-strain values.

Spin-Dependent Charge-Carrier Recombination Processes in Tris(8-Hydroxyquinolinato) Aluminum