PPT-LECTURE 3 Fermi level and Effect of temperature on Extrinsic Semiconductors

1 Course Code MSES303 Electronic and Optical Materials Faculty Name DrAnju Dixit MSME Department UIET CSJM University Kanpur Recap The Fermi energy is a concept in . P. erturbative. . R. enormalization . G. roup. approach to. Dynamical Chiral Symmetry Breaking. in extreme . environments . Kanazawa University. Masatoshi Yamada . with Ken-. Ichi. Aoki and Daisuke Sato. . Temperature effects the rate of reaction, cell metabolism, nutritional requirement by the cell and the biomass concentration. . 2 fold increase in the rate of reaction with every 10*C rise in temperature.. Sensors. (. always incomplete. ). adapted from T. Murphy’s lectures. Sensing Categories. Voltage. starting easy: analog in. Distance. acoustic or light. Speed. hard; usu. via distance. Acceleration. Koichi Hattori. Fudan. University. “Strangeness and charm in hadrons and dense matter” @ YITP, May 15, 2017. Table of contents. “. QCD Kondo effect: . dense quark . matter . with . heavy-flavor . Fermi National Accelerator Lab December 13, 2017 . How we usually think of him. Or perhaps . l. ike . t. his . How I think of him. There’s a story behind that orange line on the right of the image…... ↔. Incoherent. Photon Detection . ↔. Bolometric. Photon Counting . ↔ Integrating. Radio Telescopes. Typical Designs. Heterodyne Receivers. Jansky’s First Radio Telescope. 1933. Grote Reber: 1937 Radio Telescope. Prof Ken . Durose. , . University of Liverpool. Outline – semiconductors and recombination. 1. Band gap representations. 2. Types of semiconductors. -Adamantine semiconductors (Hume -. Rothery. 8-N co-ordination rule. Wisam. J. Aziz . Solid state physics. . Lecture . (3). Contents . Introduction . . Types . of semiconductors . Carrier concentration and Fermi level. . Mass Action Law. . Carrier . – transport phenomena . Electron . and Hole Concentrations in Extrinsic Semiconductor. For both undoped material and doped material under equilibrium condition. 2. Position of Fermi Energy in Extrinsic Semiconductors. Position of Fermi-level:. brief working principles overview. Piero Giubilato – V Scuola . Nazionale. Legnaro . –. 15 Apr 2013. 1. Solid state detectors. – overview. A bit of history. CCDs, CMOs practical detectors. characterized. ?. • What are the physical phenomena that distinguish. conductors, semiconductors, and insulators?. • For metals, how is conductivity affected by. imperfections, temperature, and deformation?. indistinguishability of the electrons. ,. electron wave nature. ,. the Pauli exclusion principle. .. (4.6). The function . f. (E). called . the . Fermi-Dirac distribution function. gives the probability that an available energy . What are Semiconductors?. Semiconductor material is a substance which has electrical conductivity between conductors and a non-conductor or insulator. Semiconductors are the core fundamental materials which are used in solid-state electronic devices such as transistors, diodes etc. The material’s atomic structure decides whether the material will turn out to be a metal, semiconductor or insulator. . Semiconductors. Faculty Name : . Dr.Anju. Dixit MSME Department UIET CSJM University Kanpur. 1. Course . Code: MSE-S303 . . Electronic . and Optical Materials. Recap. The material which has electrical conductivity between that of a conductor and that of an insulator is called as semiconductor. Silicon, germanium and graphite are some examples of semiconductors..