Transport and Phototransport in Amorphous and Nanostructured Semiconductors
نویسنده
چکیده
The basic physical ideas, concepts and pictures that are used for the understanding of the electronic properties of crystalline and amorphous semiconductors and their nanostructures are briefly reviewed. The emphasis is put in particular on the physical ideas that are encountered in the description of the transport and phototransport in crystalline and amorphous chalcogens and chalcogenides, and their recently developed nanostructures.
منابع مشابه
Thermal transport in amorphous materials: a review
Thermal transport plays a crucial role in performance and reliability of semiconductor electronic devices, where heat is mainly carried by phonons. Phonon transport in crystalline semiconductor materials, such as Si, Ge, GaAs, GaN, etc, has been extensively studied over the past two decades. In fact, study of phonon physics in crystalline semiconductor materials in both bulk and nanostructure f...
متن کاملSynthesis and Characterization of Nanocrystalline Ni3Al Intermetallic during Mechanical Alloying Process
In this research, formation of nanocrystalline Ni3Al intermetallic from Ni and Al elemental powders by mechanical alloying (MA) process and its characterization was investigated. Therefore, the evolutions in microstructure such as phase transformation, oxidation in air and introduction of Fe impurity from milling media after MA were evaluated using XRD, Rietveld refinement, TEM, SEM, EDS and IC...
متن کاملField Dependent Charge Carrier Transport for Organic Semiconductors at the Time of Flight Configuration
In this paper, we used the time-of-flight (TOF) of a charge packet, that injected by a voltage pulse to calculate the drift velocity and mobility of holes in organic semiconducting polymers. The technique consists in applying a voltage to the anode and calculating the time delay in the appearance of the injected carriers at the other contact. The method is a simple way to determine the charge t...
متن کاملDissolution of amorphous silicon into solid aluminum
Metal films are known to dissolve crystalline semiconductors at temperatures well below the eutectic temperature. Dissolution and transport of common semiconductors in contact with Au films have been demonstrated at room temperature. 1 The solid AI metallization used in electronic devices is known to dissolve troublesome quantities of crystalline Si after heat treatment at 400oC.2 Metal films a...
متن کاملPhoto-excited hot carrier dynamics in hydrogenated amorphous silicon imaged by 4D electron microscopy.
Charge carrier dynamics in amorphous semiconductors has been a topic of intense research that has been propelled by modern applications in thin-film solar cells, transistors and optical sensors. Charge transport in these materials differs fundamentally from that in crystalline semiconductors owing to the lack of long-range order and high defect density. Despite the existence of well-established...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2004