Search Results - "Christians, A."
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Intriguing Optoelectronic Properties of Metal Halide Perovskites
Published in Chemical reviews (09-11-2016)“…A new chapter in the long and distinguished history of perovskites is being written with the breakthrough success of metal halide perovskites (MHPs) as…”
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Transformation of the Excited State and Photovoltaic Efficiency of CH3NH3PbI3 Perovskite upon Controlled Exposure to Humidified Air
Published in Journal of the American Chemical Society (04-02-2015)“…Humidity has been an important factor, in both negative and positive ways, in the development of perovskite solar cells and will prove critical in the push to…”
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Doping strategies for small molecule organic hole-transport materials: impacts on perovskite solar cell performance and stability
Published in Chemical science (Cambridge) (21-02-2019)“…Hybrid organic/inorganic perovskite solar cells (PSCs) have dramatically changed the landscape of the solar research community over the past decade, but >25…”
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Quantum dot-induced phase stabilization of α-CsPbI₃ perovskite for high-efficiency photovoltaics
Published in Science (American Association for the Advancement of Science) (07-10-2016)“…We show nanoscale phase stabilization of CsPbl₃ quantum dots (QDs) to low temperatures that can be used as the active component of efficient optoelectronic…”
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Trap and Transfer. Two-Step Hole Injection Across the Sb2S3/CuSCN Interface in Solid-State Solar Cells
Published in ACS nano (24-09-2013)“…In solid-state semiconductor-sensitized solar cells, commonly known as extremely thin absorber (ETA) or solid-state quantum-dot-sensitized solar cells (QDSCs),…”
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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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Perovskite Quantum Dot Photovoltaic Materials beyond the Reach of Thin Films: Full-Range Tuning of A‑Site Cation Composition
Published in ACS nano (23-10-2018)“…We present a cation-exchange approach for tunable A-site alloys of cesium (Cs+) and formamidinium (FA+) lead triiodide perovskite nanocrystals that enables the…”
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Multifaceted Excited State of CH3NH3PbI3. Charge Separation, Recombination, and Trapping
Published in The journal of physical chemistry letters (04-06-2015)“…A need to understand the excited-state behavior of organic–inorganic hybrid perovskites, such as CH3NH3PbI3, has arisen due to the rapid development of…”
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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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High-Performance Flexible Perovskite Solar Cells on Ultrathin Glass: Implications of the TCO
Published in The journal of physical chemistry letters (05-10-2017)“…For halide perovskite solar cells (PSCs) to fulfill their vast potential for combining low-cost, high efficiency, and high throughput production they must be…”
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Degradation of Highly Alloyed Metal Halide Perovskite Precursor Inks: Mechanism and Storage Solutions
Published in ACS energy letters (13-04-2018)“…Whereas the promise of metal halide perovskite (MHP) photovoltaics (PV) is that they can combine high efficiency with solution-processability, the chemistry…”
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Monitoring a Silent Phase Transition in CH3NH3PbI3 Solar Cells via Operando X‑ray Diffraction
Published in ACS energy letters (11-11-2016)“…The relatively modest temperature of the tetragonal-to-cubic phase transition in CH3NH3PbI3 perovskite is likely to occur during real world operation of…”
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First science with the Southern African Large Telescope: peering at the accreting polar caps of the eclipsing polar SDSS J015543.40+002807.2
Published in Monthly notices of the Royal Astronomical Society (11-10-2006)“…We describe briefly the properties of the recently completed Southern African Large Telescope (SALT), along with its first light imager SALTICAM. Using this…”
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Curtailing Perovskite Processing Limitations via Lamination at the Perovskite/Perovskite Interface
Published in ACS energy letters (11-05-2018)“…Standard layer-by-layer solution processing methods constrain lead–halide perovskite device architectures. The layer below the perovskite must be robust to the…”
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P02.03 Ready-to-use multiplex immunofluorescence assay panels provide reliable deep spatial phenotyping for immuno-oncology applications
Published in Journal for immunotherapy of cancer (01-03-2024)“…BackgroundTumors and their tumor microenvironment (TME) can present in various forms, and this heterogeneity can impact the severity of the disease, treatment…”
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An Inorganic Hole Conductor for Organo-Lead Halide Perovskite Solar Cells. Improved Hole Conductivity with Copper Iodide
Published in Journal of the American Chemical Society (15-01-2014)“…Organo-lead halide perovskite solar cells have emerged as one of the most promising candidates for the next generation of solar cells. To date, these…”
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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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Stability at Scale: Challenges of Module Interconnects for Perovskite Photovoltaics
Published in ACS energy letters (12-10-2018)“…Uniting efficiency, scalability, and stability is the next frontier for perovskite solar cells. Stability tests conducted on efficient perovskite solar cell…”
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Best Practices in Perovskite Solar Cell Efficiency Measurements. Avoiding the Error of Making Bad Cells Look Good
Published in The journal of physical chemistry letters (05-03-2015)Get full text
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