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Impact of Strain on the Performance of InGaN-based Multij unction Solar Cell

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dc.contributor.advisor Islam, Dr. Md. Rafiqul
dc.contributor.author Rahman, Md. Aminur
dc.date.accessioned 2018-08-09T10:44:35Z
dc.date.available 2018-08-09T10:44:35Z
dc.date.copyright 2014
dc.date.issued 2014-09
dc.identifier.other ID 0000000
dc.identifier.uri http://hdl.handle.net/20.500.12228/258
dc.description This thesis is submitted to the Department of Electrical and Electronic Engineering, Khulna University of Engineering & Technology in partial fulfillment of the requirements for the degree of Master of Science in Electrical and Electronic Engineering, September 2014. en_US
dc.description Cataloged from PDF Version of Thesis.
dc.description Includes bibliographical references (pages 65-71).
dc.description.abstract Strain issue and its impact on the performance of InGaN-based multijunction solar cell (MJSC) is addressed for the first time in the present research work. The route of strain in MJSC is identified to be due to the change in lattice constants in different layers of subcell grown epitaxially with bandgap stepping. Using multi-layered strain model, the state of strain and its magnitude is determined for three kinds of MJSC structures named as MJSC- 1, MJSC-2 and MJSC-3. The results are expressed in terms of subcell thickness 80nm, lOOnm and 120nm and number of subcells 3, 5 and 7. It is found that the magnitude of MJSC position-dependent strain is strongly dependent on the subcell thickness and decreases with increasing the layer thickness. Further, the position-dependent strain increases with increasing the number of subcells. With the combination of MJSC position-dependent strain and deformation potentials, the strain-induced energy bandgap modification is determined under tensile strain condition. Finally, including the strain effect the efficiencies of different MJSC structures are evaluated and found to be lower with that of reported without taking into account of strain. The detraction of efficiency is identified to be due to the open circuit voltage which decreases under tensile strain condition. Among the MJSC structures studied here, MJSC-3 with 7-layers is less efficient and it's efficiency decreases upto 3.01% when strain effect is taken into consideration. en_US
dc.description.statementofresponsibility Md. Aminur Rahman
dc.format.extent 71 pages
dc.language.iso en_US en_US
dc.publisher Khulna University of Engineering & Technology (KUET), Khulna, Bangladesh. en_US
dc.rights Khulna University of Engineering & Technology (KUET) thesis/ dissertation/internship reports are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission.
dc.subject Solar Cell en_US
dc.subject Impact of Strain en_US
dc.subject InGaN en_US
dc.title Impact of Strain on the Performance of InGaN-based Multij unction Solar Cell en_US
dc.type Thesis en_US
dc.description.degree Master of Science in Electrical and Electronic Engineering
dc.contributor.department Department of Electrical and Electronic Engineering


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