Semiconductor physics and light-matter interaction
PHYS-433
Recorded version of Lecture 11 part 2
PHYS-433 Lecture 11 Part 2
01.12.2021, 15:30
In this second part of Lecture 11, we provide a qualitative picture of the band-to-band absorption process taking place in semiconductors. We also illustrate the impact of defect bands present in the bandgap of wide bandgap semiconductors such as diamond and the colors that result from the absorption process when specific impurities are present in the lattice with a sufficiently large concentration. The origin of some specific colors that are not relying on the absorption process is also briefly discussed. In particular, the Mie scattering process and the constructive interference phenomenon that is taking place in photonic crystals are presented.
PHYS-433 Lecture 11 Part 2
01.12.2021, 15:30
In this second part of Lecture 11, we provide a qualitative picture of the band-to-band absorption process taking place in semiconductors. We also illustrate the impact of defect bands present in the bandgap of wide bandgap semiconductors such as diamond and the colors that result from the absorption process when specific impurities are present in the lattice with a sufficiently large concentration. The origin of some specific colors that are not relying on the absorption process is also briefly discussed. In particular, the Mie scattering process and the constructive interference phenomenon that is taking place in photonic crystals are presented.
PHYS-433 Lecture 11 Part 2
01.12.2021, 15:30
In this second part of Lecture 11, we provide a qualitative picture of the band-to-band absorption process taking place in semiconductors. We also illustrate the impact of defect bands present in the bandgap of wide bandgap semiconductors such as diamond and the colors that result from the absorption process when specific impurities are present in the lattice with a sufficiently large concentration. The origin of some specific colors that are not relying on the absorption process is also briefly discussed. In particular, the Mie scattering process and the constructive interference phenomenon that is taking place in photonic crystals are presented.
PHYS-433 Lecture 11 Part 2
01.12.2021, 15:30
In this second part of Lecture 11, we provide a qualitative picture of the band-to-band absorption process taking place in semiconductors. We also illustrate the impact of defect bands present in the bandgap of wide bandgap semiconductors such as diamond and the colors that result from the absorption process when specific impurities are present in the lattice with a sufficiently large concentration. The origin of some specific colors that are not relying on the absorption process is also briefly discussed. In particular, the Mie scattering process and the constructive interference phenomenon that is taking place in photonic crystals are presented.
PHYS-433 Lecture 11 Part 2
01.12.2021, 15:30
In this second part of Lecture 11, we provide a qualitative picture of the band-to-band absorption process taking place in semiconductors. We also illustrate the impact of defect bands present in the bandgap of wide bandgap semiconductors such as diamond and the colors that result from the absorption process when specific impurities are present in the lattice with a sufficiently large concentration. The origin of some specific colors that are not relying on the absorption process is also briefly discussed. In particular, the Mie scattering process and the constructive interference phenomenon that is taking place in photonic crystals are presented.
PHYS-433 Lecture 11 Part 2
01.12.2021, 15:30
In this second part of Lecture 11, we provide a qualitative picture of the band-to-band absorption process taking place in semiconductors. We also illustrate the impact of defect bands present in the bandgap of wide bandgap semiconductors such as diamond and the colors that result from the absorption process when specific impurities are present in the lattice with a sufficiently large concentration. The origin of some specific colors that are not relying on the absorption process is also briefly discussed. In particular, the Mie scattering process and the constructive interference phenomenon that is taking place in photonic crystals are presented.