Books

Modelling and Design of Nanostructured Optoelectronic Devices

Solar Cells and Photodetectors

Authors : Jagdish A. Krishnaswamy, Praveen C. Ramamurthy, Gopalkrishna Hegde, Debiprosad Roy Mahapatra

Overview

Focus on bio-inspired nanostructured optoelectronic devices with improved optical and charge transport
Unified theoretical foundation for optoelectronic device modelling
Example-based demonstration of systematic design and fabrication of nanostructured optoelectronic devices
DOI : https://link.springer.com/book/10.1007/978-981-19-0607-7

About this book

This book approaches the design of functionally superior optoelectronic devices through the use of bio-inspired nanostructures and multiscale material structures through a step-by-step approach. The book combines both the fundamental theoretical concepts involved in understanding and numerically modelling optoelectronic devices and the application of such methods in addressing challenging research problems in nanostructured optoelectronic design and fabrication. The book offers comprehensive content in optoelectronic materials and engineering and can be used as a reference material by researchers in nanostructured optoelectronic design.

Spectral Finite Element Method

Wave Propagation, Diagnostics and Control in Anisotropic and Inhomogeneous Structures

Authors : S. Gopalakrishnan, A. Chakraborty, D. Roy Mahapatra

Overview

First to apply SFEM to inhomogeneous and anisotropic structures in a unified and systematic manner
Readers will gain a complete understanding of how to formulate Spectral Finite Element; learn about wave behaviour in inhomogeneous and anisotropic media; and, be able to design some diagnostic tools for monitoring the health of a structure
The theory is supported by tables, figures and graphs; all the numerical examples are so designed to bring out the essential wave behaviour in these complex structures
Includes supplementary material : sn.pub/extras
DOI : https://link.springer.com/book/10.1007/978-1-84628-356-7

About this book

Wave propagation is an exciting field having applications cutting across many disciplines. In the field of structural engineering and smart structures, wave propagation-based tools have found increasing applications, especially in the area of structural health monitoring and active control of vibrations and noise. In addition, there has been tremendous progress in the area of material science, wherein a new class of structural materials is designed to meet particular applications. In most cases, these materials are not isotropic as in metallic structures. They are either anisotropic (as in the case of laminated composite structures) or inhomogeneous (as in the case of functionally graded materials). Analysis of these structures is many orders more complex than that of isotropic structures.

For many scientists/engineers, a clear difference between structural dynamics and wave propagation is not evident. Traditionally, a structural designer will not be interested in the behavior of structures beyond certain frequencies, which are essentially at the lower end of the frequency scale. For such situations, available general-purpose finite element code will satisfy the designer’s requirements. However, currently, structures are required to be designed to sustain very complex and harsh loading environments. These loadings are essentially multi-modal phenomena, and their analysis falls under the domain of wave propagation rather than structural dynamics.

Evaluation of the structural integrity of anisotropic and inhomogeneous structures subjected to such loadings is a complex process. The currently available analysis tools are highly inadequate to handle the modeling of these structures. In this book, we present a technique called the “Spectral Finite Element Method,” which we believe will address some of the shortcomings of the existing analysis tools.