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Predicting and Optimizing Solar Cell Performance with Material/Surface Characteristics

08 Aug 2018 | Contributor(s): Yiheng Zhu, Allison Perna, Peter Bermel

Renewable energy sources have begun replacing fossil fuels at the utility scale. In particular, photovoltaics has grown rapidly in recent years. To further improve solar technology in terms of cost and efficiency and promote adoption, researchers often seek material and device level...

Semiconductor Characterization

10 Oct 2017 | Online Presentations | Contributor(s): Peter Bermel

Modeling High-Efficiency Rear Junction Photovoltaic Devices

07 Aug 2017 | Presentation Materials | Contributor(s): Valerie C Vidal, Allison Perna, Peter Bermel

Solar cells are a renewable energy technology that has begun to supply energy in many regions of the world at a utility scale. Nonetheless, further improvements in solar technology are still needed to help reduce costs and increase adoption. Many researchers have been particularly interested in...

RadCool: a Web-enabled Simulation Tool for Radiative Cooling

14 Aug 2017 | Presentation Materials | Contributor(s): Yu-wen (Wendy) Lin, Evan L Schlenker, Zhou Zhiguang, Peter Bermel

Thermophotovoltaic (TPV) systems can generate electricity from high-temperature heat sources via thermal radiation. However, the intense heating of a photovoltaic (PV) cell can greatly reduce the overall efficiency of the system. Therefore, it is critical to develop techniques to keep the PV...

Contour PV

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20 May 2017 | Tools | Contributor(s): Yiheng Zhu, Valerie C Vidal, Allison Perna, Peter Bermel

Sweep parameters to generate contour plots of photovoltaic device characteristics

Radiative Cooling Experiment

19 May 2017 | Tools | Contributor(s): Yu-wen Lin, Evan L Schlenker, Zhou Zhiguang, Peter Bermel

Simulate a passive radiative cooling solution implementation in an experimental setup.

ECE 695NS Lecture 37: Preparing for our Final Presentations

25 Apr 2017 | Online Presentations | Contributor(s): Peter Bermel

ECE 695NS Lecture 36: Addressing Engineerings Grand Challeges

13 Apr 2017 | Online Presentations | Contributor(s): Peter Bermel

ECE 695NS Lecture 35: Solar Hybrid Energy Conversion Systems

04 Apr 2017 | Online Presentations | Contributor(s): Peter Bermel

ECE 695NS L34: Finite-Difference Time Domain and Transfer Matrix Methods for Radiative Cooling

ECE 695NS L33: Finite-Difference Time Domain for Thermophotovoltaics

ECE 695NS Lecture 32: Finite-Difference Time Domain Band Structures II

Outline:Inverse Opal Photonic Crystals:Photonic Band StructuresPhotonic Crystal PhosphorsPhoton recycling in PVGaAs thin filmsNanowire solar cellsCharacterization of PV materialsTime-resolved photoluminescencePlasmonic structures

ECE 695NS Lecture 31: Finite-Difference Time Domain Band Structures I

Outline:Photonic Crystal Waveguides:Photonic BandstructureDefect Resonant ModesWaveguide TransmissionInverse Opal Photonic Crystals:Photonic Band StructuresPhotonic Crystal Phosphors

ECE 695NS Lecture 30: Finite-Difference Time Domain in MEEPPV

ECE 695NS Lecture 29: Finite-Difference Time Domain in MEEP II

Outline:MEEP Tutorial examples:Multimode ring resonatorsIsolating individual resonancesKerr nonlinearitiesQuantifying third-harmonic generationRandom and correlated random textured structures

ECE 695NS Lecture 28: Finite-Difference Time Domain in MEEP I

Outline:MEEP InterfacesMEEP ClassesTutorial examples:WaveguideMultimode ring resonatorsIsolating individual resonancesKerr nonlinearitiesQuantifying third-harmonic generationRandom and correlated random textured structures

ECE 695NS Lecture 27: Finite-Difference Time Domain

Outline:Introduction to FDTDSpecial features of MEEP:Perfectly matched layersSubpixel averagingSymmetryScheme (programmable) interfaceExamples:Periodic light-trapping structuresRandom and correlated random textured structurtes

ECE 695NS L26: Applying Coupled Mode Theory

ECE 695NS Lecture 24: Preparing Your Final Presentation

18 Mar 2017 | Online Presentations | Contributor(s): Peter Bermel

Outline:Slide 1: Title SlideSlide 2-3: Problem DescriptionSlide 4-5: Mathematical Model FormulationSlide 6-7: Proposed Problem SolutionSlide 8-10: Problem Solution ImplementatiomSlide 11-12: Results and Conclusions

ECE 695NS L23: Applications of the Cavity Modeling Framework (CAMFR)

ECE 695NS Lecture 22: Cavity Modeling Framework (CAMFR)

16 Mar 2017 | Online Presentations | Contributor(s): Peter Bermel

Outline:CAMFRRationaleProblem formulationExamples

ECE 695NS Lecture 21: Applications of S4

ECE 695NS Lecture 20: Transfer Matrices and S4

17 Feb 2017 | Online Presentations | Contributor(s): Peter Bermel

Outline:Periodic Solution StrategyStacked periodicityTransverse periodicityS-Matrix SimulationsS4 RCWA solverCapabilitiesLive demonstration

ECE 695NS Lecture 19: Transfer Matricies

Outline:Ray-optics transfer matrixWave-optics matrix methodsT-matrixR-matrixS-matrixPeriodic solution strategyStacked periodicityTransverse periodicity

ECE 695NS Lecture 18: Using Quantum Espresso for Electronic Band Structures

Outline:Quantum Espresso Job File StructureSample Structure: Solid MgPerforming 'scf' CalculationsConverging 'scf' EnergiesPerforming 'relax' Calculations