Search Results - "Schulz, Philip"
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Photoemission Spectroscopy Characterization of Halide Perovskites
Published in Advanced energy materials (01-07-2020)“…Controlling the surface and interface properties of halide perovskites (HaPs) materials is key to improve performance and stability of HaP‐based optoelectronic…”
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Impact of grain boundaries on efficiency and stability of organic-inorganic trihalide perovskites
Published in Nature communications (20-12-2017)“…Organic–inorganic perovskite solar cells have attracted tremendous attention because of their remarkably high power conversion efficiencies. To further improve…”
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Lead-Free Inverted Planar Formamidinium Tin Triiodide Perovskite Solar Cells Achieving Power Conversion Efficiencies up to 6.22
Published in Advanced materials (Weinheim) (01-11-2016)“…Efficient lead (Pb)‐free inverted planar formamidinium tin triiodide (FASnI3) perovskite solar cells (PVSCs) are demonstrated. Our FASnI3 PVSCs achieved…”
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Facile fabrication of large-grain CH3NH3PbI3−xBrx films for high-efficiency solar cells via CH3NH3Br-selective Ostwald ripening
Published in Nature communications (01-08-2016)“…Organometallic halide perovskite solar cells (PSCs) have shown great promise as a low-cost, high-efficiency photovoltaic technology. Structural and…”
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Targeted Ligand-Exchange Chemistry on Cesium Lead Halide Perovskite Quantum Dots for High-Efficiency Photovoltaics
Published in Journal of the American Chemical Society (22-08-2018)“…The ability to manipulate quantum dot (QD) surfaces is foundational to their technological deployment. Surface manipulation of metal halide perovskite (MHP)…”
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Employing Lead Thiocyanate Additive to Reduce the Hysteresis and Boost the Fill Factor of Planar Perovskite Solar Cells
Published in Advanced materials (Weinheim) (01-07-2016)“…Lead thiocyanate in the perovskite precursor can increase the grain size of a perovskite thin film and reduce the conductivity of the grain boundaries, leading…”
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Acid Additives Enhancing the Conductivity of Spiro‐OMeTAD Toward High‐Efficiency and Hysteresis‐Less Planar Perovskite Solar Cells
Published in Advanced energy materials (22-02-2017)“…A general doping strategy, using a wide range of acids with different pKa values as additive, is demonstrated to enhance the conductivity of spiro‐OMeTAD, the…”
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Defect Tolerance in Methylammonium Lead Triiodide Perovskite
Published in ACS energy letters (12-08-2016)“…Photovoltaic applications of perovskite semiconductor material systems have generated considerable interest in part because of predictions that primary defect…”
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Enhanced mobility CsPbI3 quantum dot arrays for record-efficiency, high-voltage photovoltaic cells
Published in Science advances (27-10-2017)“…We developed lead halide perovskite quantum dot (QD) films with tuned surface chemistry based on A-site cation halide salt (AX) treatments. QD perovskites…”
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Tailored interfaces of unencapsulated perovskite solar cells for >1,000 hour operational stability
Published in Nature energy (01-01-2018)“…Long-term device stability is the most pressing issue that impedes perovskite solar cell commercialization, given the achieved 22.7% efficiency. The perovskite…”
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High-Work-Function Molybdenum Oxide Hole Extraction Contacts in Hybrid Organic–Inorganic Perovskite Solar Cells
Published in ACS applied materials & interfaces (23-11-2016)“…We investigate the effect of high work function contacts in halide perovskite absorber-based photovoltaic devices. Photoemission spectroscopy measurements…”
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Strontium Insertion in Methylammonium Lead Iodide: Long Charge Carrier Lifetime and High Fill-Factor Solar Cells
Published in Advanced materials (Weinheim) (01-11-2016)“…The addition of Sr2+ in CH3NH3PbI3 perovskite films enhances the charge carrier collection efficiency of solar cells leading to very high fill factors, up to…”
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The Role of SnF2 Additive on Interface Formation in All Lead‐Free FASnI3 Perovskite Solar Cells
Published in Advanced functional materials (01-07-2022)“…Tin‐based perovskites are promising alternative absorber materials for lead‐free perovskite solar cells but need strategies to avoid fast tin (Sn) oxidation…”
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Charge Transfer Dynamics between Carbon Nanotubes and Hybrid Organic Metal Halide Perovskite Films
Published in The journal of physical chemistry letters (04-02-2016)“…In spite of the rapid rise of metal organic halide perovskites for next-generation solar cells, little quantitative information on the electronic structure of…”
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Revisiting the Valence and Conduction Band Size Dependence of PbS Quantum Dot Thin Films
Published in ACS nano (22-03-2016)“…We use a high signal-to-noise X-ray photoelectron spectrum of bulk PbS, GW calculations, and a model assuming parabolic bands to unravel the various X-ray and…”
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High Versatility and Stability of Mechanochemically Synthesized Halide Perovskite Powders for Optoelectronic Devices
Published in ACS applied materials & interfaces (21-08-2019)“…We show that mechanochemically synthesized halide perovskite powders from a ball milling approach can be employed to fabricate a variety of lead halide…”
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Influence of Electrode Interfaces on the Stability of Perovskite Solar Cells: Reduced Degradation Using MoOx/Al for Hole Collection
Published in ACS energy letters (08-07-2016)“…We investigated and characterized the stability of the power output from methylammonium lead iodide perovskite photovoltaic devices produced with various…”
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Sex-Specific Multiparameter Blood Test for the Early Diagnosis of Alzheimer's Disease
Published in International journal of molecular sciences (10-12-2022)“…Blood-based biomarkers are needed for the early diagnosis of Alzheimer's disease (AD). We analyzed longitudinal human plasma samples from AD and control cases…”
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Reactions at noble metal contacts with methylammonium lead triiodide perovskites: Role of underpotential deposition and electrochemistry
Published in APL materials (01-04-2019)“…Chemical reactivity of halide perovskites coupled with a low energy of formation makes it a challenge to characterize material properties and achieve long-term…”
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Soft X-ray characterization of halide perovskite film by scanning transmission X-ray microscopy
Published in Scientific reports (16-03-2022)“…Organic–inorganic metal halide perovskites (MHPs) have recently been receiving a lot of attention due to their newfound application in optoelectronic devices,…”
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