electron injection

electron injection

[i′lek‚trän in′jek·shən]
(electronics)
The emission of electrons from one solid into another.
The process of injecting a beam of electrons with an electron gun into the vacuum chamber of a mass spectrometer, betatron, or other large electron accelerator.
References in periodicals archive ?
The mechanism of MLCT involves an interfacial phenomenon, as noted by Gratzel and coworkers, that described a very rapid photoinduced electron injection into the conduction band (cb) of Ti[O.
Later on, Swanson and his colleagues explained electron injection phenomena and its effect to the potential structure inside the chamber [11].
8 eV is the work function of the ITO anode), whereas the electron injection barrier is [DELTA][E.
Effect of multi-walled carbon nanotubes on electron injection and charge generation in AC field-induced polymer electroluminescence.
The interfacial charge transfer between the semiconductor electrode and the TMH15 dye are electron injection processes from the excited dye to the semiconductor conduction band and the phenothiazine group is major chromophore that contributed to the sensitization.
Practical OLEDS are more complicated, and include hole-injection (HIL), hole-transport (HTL), hole-blocking (HBL), electron blocking (EBL), electron transport (ETL), and electron injection (EIL) layers to improve performance and extend the useful lifetime.
They describe dye-sensitized solar cells built on plastic substrates by the low-temperature preparation of semiconductor films, cells based on nitrogen-doped titania electrodes, porphyrins as potential sensitizers, PEO-imidazole ionic liquid oligomer and polymer electrolytes, the counter electrode, the efficiency of electron injection in dye-sensitized semiconductor films, charge transport and interfacial charge transfer in dye-sensitized nanoporous semiconductor electrode systems, and electron transportation and recombination in TiOin2 film for flexible dye-sensitized solar cells.
If such a barrier becomes high enough (near to 1 eV or larger), electron injection is negligible and the device has unipolar conduction.
The change in colour of the composite film from bluish-grey to red is attributed to an electron injection from the ITO conduction band into the composite, which led to cathodic reduction of Mo(VI) to Mo(V) and, as a result, to disrupting the charge transfer complex.
In comparison with a conventional P-N junction-based solar cell, the impurity in the semiconductor of a DSSC causes less adverse effect on the cell performance because the important electron injection and recombination processes occur at the Ti[O.
Two technologies are used to program and erase a flash device: hot electron injection and Fowler-Nordheim tunneling, a quantum mechanical process in which electrons tunnel through a thin barrier in the presence of a high electric field.
of Basel, Switzerland) here presents nine articles on important aspects of charge transfer processes in DNA, including the principles and mechanisms of photoinduced charge injection, transport, and trapping in DNA; sequence-dependent dynamics as the regulator of DNA-mediated charge transport; excess electron transfer in DNA probed with flavin- and thymine dimmer-modified oligonucleotides; dynamics of photoinitiated hole and electron injection in duplex DNA; spectroscopic investigation of charge transfer in DNA; and electron transfer and structural dynamics in DNA.