Title:
Low cost high efficiency screen printed solar cells on Cz and epitaxial silicon

dc.contributor.advisor Rohatgi, Ajeet
dc.contributor.author Chen, Chia-Wei
dc.contributor.committeeMember Gaylord, Thomas K.
dc.contributor.committeeMember Kippelen, Bernard
dc.contributor.committeeMember Chang, Gee-Kung
dc.contributor.committeeMember Melkote, Shreyes N.
dc.contributor.department Electrical and Computer Engineering
dc.date.accessioned 2016-05-27T13:12:35Z
dc.date.available 2016-05-27T13:12:35Z
dc.date.created 2016-05
dc.date.issued 2016-03-17
dc.date.submitted May 2016
dc.date.updated 2016-05-27T13:12:35Z
dc.description.abstract The objective of this research is to achieve high-efficiency, low-cost, commercial-ready, screen-printed Silicon (Si) solar cells by reducing material costs and raising cell efficiencies. Two specific solutions to material cost reduction are implemented in this thesis. The first one is low to medium concentrator (2-20 suns) Si solar cells. By using some optics to concentrate sunlight, the same amount of output power can be achieved with cell area reduced by a factor equal to the concentration ratio. Since the cost of optics is less than the semiconductor material, electricity price from the concentrator photovoltaics (PV) system is therefore reduced. The second solution is the use of epitaxially grown Si (epi-Si) wafers. This epi-Si technology bypasses three costly process steps (the need for polycrystalline silicon feedstock, ingot growth, and wafer slicing) compared to the traditional Si wafer technology and therefore reduces the material cost by up to 50% in a finished PV module. In addition, high efficiency Si solar cells with reduced metal contact recombination are studied and modeled by implementation of passivated contacts composed of tunnel oxide, n+ polycrystalline Si and metal on top of n-type Si absorber to reduce the cost ($/Wp) of PV module.
dc.description.degree Ph.D.
dc.format.mimetype application/pdf
dc.identifier.uri http://hdl.handle.net/1853/54968
dc.publisher Georgia Institute of Technology
dc.subject Solar cell
dc.subject Device fabrication
dc.subject Epitaxial Si
dc.subject Si
dc.title Low cost high efficiency screen printed solar cells on Cz and epitaxial silicon
dc.type Text
dc.type.genre Dissertation
dspace.entity.type Publication
local.contributor.advisor Rohatgi, Ajeet
local.contributor.corporatename School of Electrical and Computer Engineering
local.contributor.corporatename College of Engineering
relation.isAdvisorOfPublication b7cc3b55-ebc6-42fd-b859-107fb271b10d
relation.isOrgUnitOfPublication 5b7adef2-447c-4270-b9fc-846bd76f80f2
relation.isOrgUnitOfPublication 7c022d60-21d5-497c-b552-95e489a06569
thesis.degree.level Doctoral
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