UA cloudflare authentication

 

Going Beyond Shockley-Queisser Limit Perovskite Chalcogenides Tandem Solar Cell

Simple item page
dc.contributorThompson, Gregory
dc.contributorWeaver, Mark
dc.contributorCheng, Mark
dc.contributorLi, Lin
dc.contributorNing, Haibin
dc.contributor.advisorYan, Feng
dc.contributor.advisorDaniewicz, Steven
dc.contributor.authorGokul Menon, Harigovind
dc.date.accessioned2023-08-03T18:42:24Z
dc.date.available2028-06-01
dc.date.issued2023
dc.descriptionElectronic Thesis or Dissertationen_US
dc.description.abstractThe efficiencies of single junction solar cell (SJ SC) technologies like silicon and cadmium telluride have been rapidly increasing and are nearing their fundamental Shockley Queisser (SQ) efficiency limit. New novel methods must be developed to go beyond the limitations of SJ SCs. A promising approach is the combination of an efficient narrow bandgap (NBG) absorber with a wide bandgap (WBG) absorber to form a tandem solar cell that can effectively utilize the solar spectrum. The aim of this work is the realization of mechanically stacked perovskite-antimony selenide (Sb2Se3) and perovskite-cadmium telluride (CdTe) 4T tandem solar cells. Perovskite materials with their excellent performance and tunable bandgap make it an ideal candidate for tandem solar cells. Sb2Se3 with a bandgap of 1.2eV and a theoretical efficiency limit of over 30% and CdTe with a bandgap of 1.5eV and an efficiency over 22% make them potential NBG absorbers. In this work, we first simulated 4T tandem cells pairing a 1.6eV WBG Perovskite solar cell (PSC) with a 1.2 eV NBG Sb2Se3 cell and a 1.6eV WBG PSC with a 1.5 eV NBG CdTe cell using Solar Cell Capacitance Simulator (SCAPS). We obtained a simulated tandem PCE of 23.14 % for the perovskite Sb2Se3 tandem and a PCE of 23.37% for the perovskite CdTe tandem. We then developed two WBG perovskite top cells with a bandgap of 1.6eV and 1.77eV to study the impact of bandgap on the tandem architecture. We also developed a CdTe solar cell with Cu doping which had a PCE of 17.94% and a Sb2Se3 solar cell with a PCE of 5.76%. As a substitute for the opaque metal back electrode for the top cell, we developed an indium tin oxide (ITO) transparent electrode using DC sputtering to fabricate a semitransparent top cell. By mechanically stacking the sub-cells, we obtained an excellent 4T tandem PCE of 16.13% for the perovskite-Sb2Se3 tandem and a tandem PCE of 19.41% for the perovskite-CdTe tandem. The experimental results show promising tandem cell performance and pave the way to go beyond the SQ limit.en_US
dc.format.mediumelectronic
dc.format.mimetypeapplication/pdf
dc.identifier.otherhttp://purl.lib.ua.edu/187839
dc.identifier.otheru0015_0000001_0004661
dc.identifier.otherGokulMenon_alatus_0004D_15174
dc.identifier.urihttps://ir.ua.edu/handle/123456789/10474
dc.languageEnglish
dc.language.isoen_US
dc.publisherUniversity of Alabama Libraries
dc.relation.hasversionborn digital
dc.relation.ispartofThe University of Alabama Electronic Theses and Dissertations
dc.relation.ispartofThe University of Alabama Libraries Digital Collections
dc.rightsAll rights reserved by the author unless otherwise indicated.
dc.subjectAntimony Selenide solar cells
dc.subjectCadmium Telluride solar cells
dc.subjectPerovskite solar cells
dc.subjectPhotovoltaic
dc.subjectTandem Solar Cells
dc.subjectThin films
dc.titleGoing Beyond Shockley-Queisser Limit Perovskite Chalcogenides Tandem Solar Cellen_US
dc.typethesis
dc.typetext
etdms.degree.departmentUniversity of Alabama. Department of Metallurgical and Materials Engineering
etdms.degree.disciplineMaterials Science
etdms.degree.grantorThe University of Alabama
etdms.degree.leveldoctoral
etdms.degree.namePh.D.

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
u0015_0000001_0004661.pdf
Size:
4.25 MB
Format:
Adobe Portable Document Format
Download

Collections

Theses and Dissertations