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Meeting	MS&T22: Materials Science & Technology
Symposium	Advances in Emerging Electronic Nanomaterials: Synthesis, Enhanced Properties, Integration, and Applications
Presentation Title	H-2: Optical Engineering of Pbs Colloidal Quantum Dot Solar Cells Via Fabry-Perot Resonance and Distributed Bragg Reflectors
Author(s)	Sumin Bae
On-Site Speaker (Planned)	Sumin Bae
Abstract Scope	We reduce the tradeoff between light absorption and charge transport by combining a Fabry-Perot (FP) resonator and a distributed Bragg reflector (DBR). A FP resonance is formed between the DBR and a dielectric-metal-dielectric film as a top transparent electrode. The FP resonance enhances light absorption near the resonant wavelength of the DBR without changing the CQD film thickness. The light absorption near the FP resonance wavelength is further boosted by coupling the FP resonance with the high reflectivity of the Ag-coated DBR. When the FP resonance and DBR are added, the power conversion efficiency (PCE) of PbS CQD solar cells increases up to 82%. The results of this study pave a way toward overcoming the inherence problem of the CQD solar cells as well as developing semi-transparent solar cells or multi-junction solar cells, where the wavelength-selective absorption and transmission are very important.

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

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H-2: Optical Engineering of Pbs Colloidal Quantum Dot Solar Cells Via Fabry-Perot Resonance and Distributed Bragg Reflectors

H-4: Study on Nanostructured Molybdenum Carbide for Hydrogen Evolution Reaction

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Synthesis and Integration of Transition Metal Dichalcogenides

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