We present a quantitative theory for the effects of correlated doping on the ferromagnetism of diluted magnetic semiconductors. It predicts that room temperature ferromagnetism should be possible in homogeneous, but correlated, samples of MnxGa1−xAs. The theory predicts lower critical temperatures for MnxGa1−xN. Typeset using REVTEX email:[email protected] Also in the CNRS,email:[email protected] emai...

We present here the development of a new solution-processable n-type dopant, N-DMBI. Our experimental results demonstrated that a well-known n-channel semiconductor, [6,6]-phenyl C(61) butyric acid methyl ester (PCBM), can be effectively doped with N-DMBI by solution processing; the film conductivity is significantly increased by n-type doping. We utilized this n-type doping for the first time ...

By linking semiconductor physics and wetting phenomena a brand new effect termed "photoelectrowetting-on-semiconductors" is demonstrated here for a conducting droplet resting on an insulator-semiconductor stack. Optical generation of carriers in the space-charge region of the underlying semiconductor alters the capacitance of the liquid-insulator-semiconductor stack; the result of this is a mod...

Understanding the optical gain and mode-selection mechanisms in semiconductor nanowire (NW) lasers is key to the development of high-performance nanoscale oscillators, amplified semiconductor/plasmon lasers and single photon emitters, and so forth. Modification of semiconductor band structure/bandgap through electric field modulation, elemental doping, or alloying semiconductors has so far gain...

In accordance with the requirements for the degree of Bachelor of Engineering (Honours) in the division of Electrical Engineering, I hereby submit for your consideration this thesis entitled " P-N junction doping profile extraction via inverse modelling ". The work was performed under the supervision of Associate Professor Y.T Yeow. I declare that the work submitted in this thesis is my own, ex...

This paper is devoted to the investigation of inverse problems related to stationary drift-diffusion equations modeling semiconductor devices. In this context we analyze several identification problems corresponding to different types of measurements, where the parameter to be reconstructed is an inhomogeneity in the PDE model (doping profile). For a particular type of measurement (related to t...

Abstract Organic–metal and organic–organic interfaces play crucial roles in charge injection in, and transport through, organic thin film devices. Their electronic structure, chemical properties and electrical behaviour must be fully characterized and understood if engineering and control of organic devices are to reach the levels attained for inorganic semiconductor devices. Recent fundamental...

Comparative analysis of structural and electromagnetic characteristics have been performed on nano SiCand polycarbosilane-doped MgB2 samples prepared by the dry and liquid mixing approaches. The total benefit of liquid mixing approach for fabrication of “organic” MgB2 superconductor with excellent electromagnetic performance has been demonstrated.