Background[ edit ] Solar cell concepts[ edit ] In a conventional solar cell, light is absorbed by a semiconductorproducing an electron-hole e-h pair; the pair may be bound and is referred to as an exciton. This pair is separated by an internal electric field present in p-n junctions or Schottky diodes and the resulting flow of electrons and holes creates electric current. The internal electric field is created by doping one part of semiconductor interface with atoms that act as electron donors n-type doping and another with electron acceptors p-type doping that results in a p-n junction. Generation of an e-h pair requires that the photons have energy exceeding the bandgap of the material.
The report, including an abstract, must be suitably documented and illustrated, should be at least words in length, must be type-written on one side of Structural efficiency and economy: Selection and preliminary design of building structural systems, materials and components.
A case study or a project is required. Computer systems for energy management, including scheduling and operation of HVAC systems and lighting. Applications for intelligent buildings. Use of simulation and knowledge-based software for automatic regulation of building operation.
Diagnosis of malfunctions and modifications of operations. Computerized building security systems. Actions during extraordinary conditions such as fire emergencies.
A project is required. Database requirements for engineering tasks. Design of database schema and implementation in commercially available DBMS.
Engineering data modelling techniques. Students who have taken ENGR may not take this course for credit. Identification of objects and definition of their arrangement and interaction to model engineering processes.
Overview of the life-cycle of an engineering software project. Project on implementation of a small scale computer-aided engineering system. Algorithmic versus knowledge-based programming for engineering applications.
Emphasis on knowledge-based systems and their characteristics, capabilities and limitations. Case studies in design, failure diagnosis and processing of standards.
Steady state heat conduction. Convection and radiation heat exchange. Theory of air vapour mixtures. Introduction to heat transfer in building environment.David completed his bachelors in Physics honours from St.
Stephens College, University of Delhi. Thereafter, he proceeded with his MTech in Geophysical Technology from IIT Roorkee, His dissertation work was on the topic of “2D Modeling and Inversion of .
For example, nanometer-size semiconductor crystallites, or semiconductor quantum dots (QDs), can be used as photoactive materials in solar cells to potentially achieve a maximum theoretical power conversion efficiency which exceeds that of current mainstay solar technology at a much lower cost.
Projects Available. This page gives details of all projects currently on offer for research towards a DPhil in Materials Science at the Department of Materials, University of Oxford. The theoretical efficiency limit of current solar cell technology, called the Shockley-Queisser limit, is about 30%.
Research is underway to overcome this limit using new types of nano-sized solar cells.
Quantum dots offer the potential to increase the efficiency of solar cells through carrier multiplication. PHYSICS OF SOLAR CELLS, THE (Properties of Semiconductor Materials) [Jenny Nelson] on ashio-midori.com *FREE* shipping on qualifying offers.
This book provides a comprehensive introduction to the physics of the photovoltaic cell. It is suitable for undergraduates. This thesis presents the experimental study of CdS and CdSe quantum dot properties prepared by successive ionic layer adsorption and reaction (SILAR) method and CdSe/CdS-sensitised solar cells for achieving high efficiency.