The band edges of GeI 2 /C N vdW are favourable to generate H at pH 0 9 with transition from a type-II indirect type-I direct bandgap semiconductor under tensile biaxial strain.

• Isoelectronic surface dopants can tune p-n type transport in nanoscale semiconductors. A shift from p-type to n-type conduction is demonstrated for thin Bi 2 Te 3 nanowires. Solution processability maintained during aqueous S 2? treatment ambient. Proposed mechanism based on introduction of a dopant band and Fermi level shift. Thermoelectric devices film transistors are fabricated using these...

This paper is concerned with scaling limits in kinetic semiconductor models. For the classical Vlasov-Poisson-Fokker-Planck equation and its quantum mechanical counterpart, the Wigner-Poisson-Fokker-Planck equation, three distinguished scaling regimes are presented. Using Hilbert and Chapman-Enskog expansions, we derive two drift-diiusion type approximations. The test case of a n + ?n?n + diode...

This paper is concerned with scaling limits in kinetic semiconductor models. For the classical Vlasov-Poisson-Fokker-Planck equation and its quantum mechanical counterpart, the Wigner-Poisson-Fokker-Planck equation, three distinguished scaling regimes are presented. Using Hilbert and Chapman-Enskog expansions, we derive two drift-diffusion type approximations. The test case of a n+−n−n+ diode r...

Colloidal quantum dots have emerged as a material platform for low-cost high-performance optoelectronics. At the heart of optoelectronic devices lies the formation of a junction, which requires the intimate contact of n-type and p-type semiconductors. Doping in bulk semiconductors has been largely deployed for many decades, yet electronically active doping in quantum dots has remained a challen...

Pyrite is a common sulfide mineral in gold deposits, and its unique thermoelectricity has received extensive attention the field of exploration. However, there still lack detailed research direct evidence about how impurity elements affect semiconductor properties. In this paper, combined with first-principles calculations, laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS)...

Photosensitized oxidations or reductions at pand n-type GaAs and InP semiconductor electrodes of aromatic species in aprotic solvents leading to electrogenerated chemiluminescence (ECL) are described. The energy of the irradiating light equal to the bandgap energy of the semiconductor and the electrical energy input couple to produce excited states which eventually produce emission at shorter w...

In a semiconductor either electrons or holes typically dominate as dictated by the concentration of ionized dopants, and the nomenclature is n type for electrons dominating and p type for holes. Minority carriers are therefore holes in n type and electrons in p type. Electron-hole pair generation is a local disturbance from the equilibrium concentration. As electron hole pairs are formed, the d...