CA and carmine dyes, used for the dye-sensitization experiments with n-type semiconductor
Ti[O.sub.2.sup.m] programmed for this study, were purchased from Sigma-Aldrich.
This result is in perfect agreement with the fact that CdS occurs naturally as an n-type semiconductor
. It is a difficult task to obtain intrinsic p-type doping of CdS.
[In.sub.2][O.sub.3] thin films are n-type semiconductors
and has a tetragonal rutile structure .
The majority of n-type semiconductor
charge carriers are electrons, whereas the p-type is a positive hole.
In addition, the energy gap between the energy level of interface traps and bottom of conductance band of an n-type semiconductor
is given by;
M2 Holes are the majority carriers of an N-type semiconductor
. M3 The depletion region narrows when reverse bias is applied to a diode.
The design of most Peltier devices requires the use of both an n-type semiconductor
and a p-type semiconductor.
Like diodes, the simple solar cell consists of n-type semiconductor
material that contains an excess of electrons and a p-type material which has excess space for electrons or positive 'holes' which can be occupied by electrons.
But that's not all, because joining a p-type semiconductor to an n-type semiconductor
offers a way to finely control the flow of electric current, and is the foundation for our digital world.
The electric field "swept" the oxygen vacancies towards the film's top surface, creating an n-type semiconductor
in that portion of the film, while the immobile calcium ions created a p-type semiconductor in the bottom portion.
When the researchers replaced the rod's two end thiophenes with a perfluoroarene group (a ring of six carbons decorated with fluorines), the organic molecule behaved like an n-type semiconductor
. When the researchers instead replaced the next two thiophenes from the ends, the molecule behaved as a p-type semiconductor.
In a conventional DSSC, light is absorbed by a sensitizer, which is anchored to the surface of a wide band gap n-type semiconductor
[In.sub.2][S.sub.3] is an n-type semiconductor
that belongs to the III--VI group of compounds.
Zinc oxide is a typical n-type semiconductor
gas sensing material with direct band gap of about 3.37eV at room temperature .
Recent study on organic light emitting diode (OLED) shows that Ti[O.sub.2] films serve as electron injecting material due to their n-type semiconductor