Details

Autor(en) / Beteiligte

• Ghatak, Kamakhya Prasad
• Mitra, Madhuchhanda
• Biswas, Arindam

Titel

The HUP and the ES in Quantum Wells (QWs) of HD Non-parabolic Materials

Ist Teil von

• Heisenberg’s Uncertainty Principle and the Electron Statistics in Quantized Structures, 2022, p.87-108

Ort / Verlag

Singapore: Springer Singapore

Erscheinungsjahr

2022

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The 2D electron transport in quantum wells (QWs) extensively studied in such 2D systems under various physical conditions. This chapter investigates the ES in QWHD Non-Parabolic materials by applying the HUP directly without using the DOS approach. We will observe that the complex electron dispersion law in HDS instead of real one occurs from the existence of the essential poles in the corresponding electron energy spectrum in the absence of band tails. One important consequence of the HDS forming band tails is that the EEM exists in the forbidden zone, which is impossible without the effect of band tailing. In the absence of band tails, the effective mass in the band gap of semiconductors is infinity. Besides, depending on the type of the unperturbed carrier energy spectrum, the new forbidden zone will appear within the normal energy band gap for HDS. We study chronologically the ES in accordance with the content of this chapter. Taking QWs of HD non-linear optical, III-V, II-VI, IV-VI, stressed Kane type materials, Te, Gallium Phosphoide, Platinum Antimonide, Bismuth Telluride, Gallium Antimonide respectively which find extensive uses in various device applications. It appears that normalized Fermi energy changes in a stepwise manner with the film thickness. The 2D electron concentration per unit area and the alloy composition affect the Fermi energy in the whole range of variable considered here.