Search Results - "Uhl, Alexander"

Present Status of Solution‐Processing Routes for Cu(In,Ga)(S,Se)2 Solar Cell Absorbers by Suresh, Sunil, Uhl, Alexander R.

“…Photovoltaic technologies offer a sustainable solution to the challenge of meeting increasing energy demands. Chalcopyrite Cu(In,Ga)(S,Se)2, short…”
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Atomic-level passivation mechanism of ammonium salts enabling highly efficient perovskite solar cells by Alharbi, Essa A., Alyamani, Ahmed Y., Kubicki, Dominik J., Uhl, Alexander R., Walder, Brennan J., Alanazi, Anwar Q., Luo, Jingshan, Burgos-Caminal, Andrés, Albadri, Abdulrahman, Albrithen, Hamad, Alotaibi, Mohammad Hayal, Moser, Jacques-E., Zakeeruddin, Shaik M., Giordano, Fabrizio, Emsley, Lyndon, Grätzel, Michael

“…The high conversion efficiency has made metal halide perovskite solar cells a real breakthrough in thin film photovoltaic technology in recent years. Here, we…”
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Potassium-induced surface modification of Cu(In,Ga)Se2 thin films for high-efficiency solar cells by Chirilă, Adrian, Reinhard, Patrick, Pianezzi, Fabian, Bloesch, Patrick, Uhl, Alexander R., Fella, Carolin, Kranz, Lukas, Keller, Debora, Gretener, Christina, Hagendorfer, Harald, Jaeger, Dominik, Erni, Rolf, Nishiwaki, Shiro, Buecheler, Stephan, Tiwari, Ayodhya N.

“…Compared with their rigid counterparts, thin-film solar cells grown on flexible substrates usually display lower power-conversion efficiencies. Now, the…”
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Beyond Protocols: Understanding the Electrical Behavior of Perovskite Solar Cells by Impedance Spectroscopy by Ghahremanirad, Elnaz, Almora, Osbel, Suresh, Sunil, Drew, Amandine A., Chowdhury, Towhid H., Uhl, Alexander R.

“…Impedance spectroscopy (IS) is an effective characterization technique used to probe and distinguish charge dynamics occurring at different timescales in…”
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Highly efficient Cu(In,Ga)Se2 solar cells grown on flexible polymer films by Chirilă, Adrian, Buecheler, Stephan, Pianezzi, Fabian, Bloesch, Patrick, Gretener, Christina, Uhl, Alexander R., Fella, Carolin, Kranz, Lukas, Perrenoud, Julian, Seyrling, Sieghard, Verma, Rajneesh, Nishiwaki, Shiro, Romanyuk, Yaroslav E., Bilger, Gerhard, Tiwari, Ayodhya N.

“…The use of flexible polymer substrates not only reduces weight and fabrication costs of solar cells, but their bendability also enables new applications. A…”
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Ultrahydrophobic 3D/2D fluoroarene bilayer-based water-resistant perovskite solar cells with efficiencies exceeding 22 by Liu, Yuhang, Akin, Seckin, Pan, Linfeng, Uchida, Ryusuke, Arora, Neha, Milić, Jovana V, Hinderhofer, Alexander, Schreiber, Frank, Uhl, Alexander R, Zakeeruddin, Shaik M, Hagfeldt, Anders, Dar, M Ibrahim, Grätzel, Michael

“…Preventing the degradation of metal perovskite solar cells (PSCs) by humid air poses a substantial challenge for their future deployment. We introduce here a…”
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Sodium Assisted Sintering of Chalcogenides and Its Application to Solution Processed Cu2ZnSn(S,Se)4 Thin Film Solar Cells by Sutter-Fella, Carolin M, Stückelberger, Josua A, Hagendorfer, Harald, La Mattina, Fabio, Kranz, Lukas, Nishiwaki, Shiro, Uhl, Alexander R, Romanyuk, Yaroslav E, Tiwari, Ayodhya N

“…Cu2ZnSn(S,Se)4 thin layers processed from solution-deposited earth-abundant precursors emerge as absorber materials for low-cost thin film solar cells. A…”
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Doping of polycrystalline CdTe for high-efficiency solar cells on flexible metal foil by Kranz, Lukas, Gretener, Christina, Perrenoud, Julian, Schmitt, Rafael, Pianezzi, Fabian, La Mattina, Fabio, Blösch, Patrick, Cheah, Erik, Chirilă, Adrian, Fella, Carolin M., Hagendorfer, Harald, Jäger, Timo, Nishiwaki, Shiro, Uhl, Alexander R., Buecheler, Stephan, Tiwari, Ayodhya N.

“…Roll-to-roll manufacturing of CdTe solar cells on flexible metal foil substrates is one of the most attractive options for low-cost photovoltaic module…”
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Highly Transparent and Conductive ZnO: Al Thin Films from a Low Temperature Aqueous Solution Approach by Hagendorfer, Harald, Lienau, Karla, Nishiwaki, Shiro, Fella, Carolin M., Kranz, Lukas, Uhl, Alexander R., Jaeger, Dominik, Luo, Li, Gretener, Christina, Buecheler, Stephan, Romanyuk, Yaroslav E., Tiwari, Ayodhya N.

“…A solution deposition approach for high‐performance aluminum‐doped zinc oxide (AZO) thin films (visible transparency > 90% and sheet resistance down to 25…”
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Extrinsic Doping of Ink‐Based Cu(In,Ga)(S,Se)2‐Absorbers for Photovoltaic Applications by Suresh, Sunil, Rokke, David J., Drew, Amandine A., Alruqobah, Essam, Agrawal, Rakesh, Uhl, Alexander R.

“…The addition of cesium into Cu(In,Ga)(S,Se)2‐short CIGSSe‐absorber layers (fabricated via vacuum deposition methods), has most recently culminated in devices…”
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Evolution of Morphology and Composition during Annealing and Selenization in Solution-Processed Cu2ZnSn(S,Se)4 by Clark, James A, Uhl, Alexander R, Martin, Trevor R, Hillhouse, Hugh W

“…Cu2ZnSn­(S,Se)4 absorbers deposited from a nontoxic, DMSO-based molecular ink have yielded the most efficient, hydrazine-free Cu2ZnSn­(S,Se)4 photovoltaic (PV)…”
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Current-Induced Phase Segregation in Mixed Halide Hybrid Perovskites and its Impact on Two-Terminal Tandem Solar Cell Design by Braly, Ian L, Stoddard, Ryan J, Rajagopal, Adharsh, Uhl, Alexander R, Katahara, John K, Jen, Alex K.-Y, Hillhouse, Hugh W

“…Mixed halide hybrid perovskites are of significant interest because their bandgap can be tuned as a current-matched top-cell in tandem photovoltaics. However,…”
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Solution‐Processed Low‐Bandgap CuIn(S,Se)2 Absorbers for High‐Efficiency Single‐Junction and Monolithic Chalcopyrite‐Perovskite Tandem Solar Cells by Uhl, Alexander R., Rajagopal, Adharsh, Clark, James A., Murray, Anna, Feurer, Thomas, Buecheler, Stephan, Jen, Alex K.‐Y., Hillhouse, Hugh W.

“…A novel molecular‐ink deposition route based on thiourea and N,N‐dimethylformamide (DMF) that results in a certified solar cell efficiency world record for…”
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Rear Surface Passivation for Ink‐Based, Submicron CuIn(S, Se)2 Solar Cells by Suresh, Sunil, Gidey, Abraha T., Chowdhury, Towhid H., Rondiya, Sachin R., Tao, Li, Liu, Jian, Vermang, Bart, Uhl, Alexander R.

“…A N, N‐dimethylformamide and thiourea‐based route is developed to fabricate submicron (0.55 and 0.75 µm) thick CuIn(S,Se)2 (CISSe) thin films for photovoltaic…”
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Rear Surface Passivation for Ink‐Based, Submicron CuIn(S, Se)2 Solar Cells (Adv. Energy Mater. 10/2024) by Suresh, Sunil, Gidey, Abraha T., Chowdhury, Towhid H., Rondiya, Sachin R., Tao, Li, Liu, Jian, Vermang, Bart, Uhl, Alexander R.

“…CISSe Solar Cells In article number 2303309, Alexander R. Uhl and co‐workers develop a novel rear contacting structure for solution‐processed CuIn(S,Se)2…”
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Formation mechanism of Cu2ZnSnSe4 absorber layers during selenization of solution deposited metal precursors by Fella, Carolin M., Uhl, Alexander R., Hammond, Ceri, Hermans, Ive, Romanyuk, Yaroslav E., Tiwari, Ayodhya N.

“…•Cu2ZnSnSe4 formation during the selenization of metal salt precursor is studied.•Growth is kinetically driven and starts with fast formation of Cu–Se…”
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Digital Twin for Centrifugal Extractors Exemplified for pDNA Clarification Process after Lysis by Uhl, Alexander, Schmidt, Axel, Strube, Jochen

“…Plasmid DNA is an important substance for the pharmaceutical industry. A major challenge in its production is the clarification of the lysate after harvesting…”
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All Solution-Processed Chalcogenide Solar Cells - from Single Functional Layers Towards a 13.8% Efficient CIGS Device by Romanyuk, Yaroslav E., Hagendorfer, Harald, Stücheli, Patrick, Fuchs, Peter, Uhl, Alexander R., Sutter-Fella, Carolin M., Werner, Melanie, Haass, Stefan, Stückelberger, Josua, Broussillou, Cédric, Grand, Pierre-Philippe, Bermudez, Veronica, Tiwari, Ayodhya N.

“…Solution processing of inorganic thin films has become an important thrust in material research community because it offers low‐cost and high‐throughput…”
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Role of Ceria in Oxidative Dehydrogenation on Supported Vanadia Catalysts by Ganduglia-Pirovano, Maria Veronica, Popa, Cristina, Sauer, Joachim, Abbott, Heather, Uhl, Alexander, Baron, Martin, Stacchiola, Dario, Bondarchuk, Oleksandr, Shaikhutdinov, Shamil, Freund, Hans-Joachim

“…The effect of the suppport on oxidative dehydrogenation activity for vanadia/ceria systems is examined for the oxidation of methanol to formaldehyde by use of…”
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solar cell absorbers spin-coated from amine-containing ether solutions by Ilari, Gabriele M., Fella, Carolin M., Ziegler, Carmen, Uhl, Alexander R., Romanyuk, Yaroslav E., Tiwari, Ayodhya N.

“…A non-vacuum, solution-based method to deposit thin layers of Cu 2 ZnSnSe 4 (CZTSe) as absorber layer for kesterite-based thin film solar cells was…”
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