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

A self-consistent model of bipolar charge-carrier injection and transportprocesses in a semiconductor/insulator/conductor system is developed whichincorporates space-charge effects in the description of the injection process.The amount of charge-carriers injected is strongly determined by the energybarrier emerging at the contact, but at the same time the electrostaticpotential generated by the injected charge-carriers modifies the height of thisinjection barrier itself. In our model, self-consistency is obtained byassuming continuity of the electric displacement and of the electrochemicalpotential all over the system. The constituents of the system are properlytaken into account by means of their respective density of state distributions.The consequences resulting from our model are discussed on the basis of anindium tin oxide/organic semiconductor/conductor structure. The distributionsof the charge carriers and the electric field through the electrodes and theorganic layer are calculated. The recombination- and current-voltagecharacteristics are analyzed for different heights of injection barriers andvarying values of the recombination rate and compared with the measuredcurrent-voltage dependences for an indium tin oxide/poly(phenylene vinylene)/Castructure. The voltage dependences of the recombination efficiency for thedifferent values of injection barriers and recombination rate reveal optimumconditions for the device performance.

Bipolar charge-carrier injection in semiconductor/insulator/conductor heterostructures: self-consistent consideration