Charge injection across a polymeric heterojunction

Spin injection across a hybrid heterojunction: Theoretical understanding and experimental approach „invited..

Achieving a stable time response in polymeric radiation sensors under charge injection by X-rays.

Existing inorganic materials for radiation sensors suffer from several drawbacks, including their inability to cover large curved areas, lack of tissue-equivalence, toxicity, and mechanical inflexibility. As an alternative to inorganics, poly(triarylamine) (PTAA) diodes have been evaluated for their suitability for detecting radiation via the direct creation of X-ray induced photocurrents. A si...

Insights on interfacial charge transfer across P3HT/fullerene photovoltaic heterojunction from Ab initio calculations.

The interfacial charge-transfer mechanism of the P3HT/fullerene photovoltaic heterojunction is elucidated using density functional theory calculations. Our findings indicate that an efficient adiabatic electron transfer is highly probable due to the presence of an extended electronic state that has a significant probability distribution across the interface in the lowest excited state. Furtherm...

Charge injection across a metal-organic interface suppressed by thermal diffusion

We find that the ohmic conductance of Co-phthalocyanine (CoPc) vertical capacitive devices is irreversibly suppressed by orders of magnitude when they are heated above 340 K. Detailed structural and transport studies imply that the changes in the conductance are due to diffusion of the top Pd electrode into the CoPc layer. This leads to a decrease in Pd electrode effective work function, which ...

Charge Injection Devices

|The name "charge injection" describes the operation of a generic class of electronic and optoelectronic multiterminal semiconductor devices, based on the real space transfer of hot carriers over a potential barrier into adjacent and separately contacted layers. Charge injection devices enable the implementation of compact optoelectronic gates endowed with a powerful logic functionality. Keywor...