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Dive into the research topics where Pawel Zawadzki is active.

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Featured researches published by Pawel Zawadzki.


Applied Physics Letters | 2013

Evaluation of photovoltaic materials within the Cu-Sn-S family

Pawel Zawadzki; Lauryn L. Baranowski; Haowei Peng; Eric S. Toberer; David S. Ginley; William Tumas; Andriy Zakutayev; Stephan Lany

Next-generation thin film solar cell technologies require earth abundant photovoltaic absorber materials. Here we demonstrate an alternative approach to design of such materials, evaluating candidates grouped by constituent elements rather than underlying crystal structures. As an example, we evaluate thermodynamic stability, electrical transport, electronic structure, optical and defect properties of Cu-Sn-S candidates using complementary theory and experiment. We conclude that Cu2SnS3 avoids many issues associated with the properties of Cu4SnS4, Cu4Sn7S16, and other Cu-Sn-S materials. This example demonstrates how this element-specific approach quickly identifies potential problems with less promising candidates and helps focusing on the more promising solar cell absorbers.


Applied Physics Express | 2015

CuSbSe2 photovoltaic devices with 3% efficiency

Adam W. Welch; Lauryn L. Baranowski; Pawel Zawadzki; Stephan Lany; Colin A. Wolden; Andriy Zakutayev

Recent technical and commercial successes of existing thin film solar cell technologies motivates exploration of next-generation photovoltaic (PV) absorber materials. Of particular scientific interest are compounds like CuSbSe


photovoltaic specialists conference | 2016

Wild band edges: The role of bandgap grading and band-edge fluctuations in high-efficiency chalcogenide devices

Ingrid Repins; Lorelle M. Mansfield; Ana Kanevce; Soren A. Jensen; Darius Kuciauskas; Stephen Glynn; Teresa M. Barnes; Wyatt K. Metzger; James M. Burst; Chun-Sheng Jiang; P. Dippo; Steve Harvey; Glenn Teeter; Craig L. Perkins; Brian Egaas; Andriy Zakutayev; Jan-Hendrik Alsmeier; Thomas Lusky; Lars Korte; Regan G. Wilks; M. Bär; Yanfa Yan; Stephan Lany; Pawel Zawadzki; Ji-Sang Park; Su-Huai Wei

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Chemistry of Materials | 2014

Control of Doping in Cu2SnS3 through Defects and Alloying

Lauryn L. Baranowski; Pawel Zawadzki; Steven T. Christensen; Dennis Nordlund; Stephan Lany; Adele C. Tamboli; Lynn Gedvilas; David S. Ginley; William Tumas; Eric S. Toberer; Andriy Zakutayev

, which do not have the conventional tetrahedral semiconductor bonding. Here, we demonstrate 1.5 {\mu}m thick CuSbSe


Solar Energy Materials and Solar Cells | 2015

Self-Regulated Growth and Tunable Properties of CuSbS2 Solar Absorbers

Adam W. Welch; Pawel Zawadzki; Stephan Lany; Colin A. Wolden; Andriy Zakutayev

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Progress in Photovoltaics | 2016

Accelerated development of CuSbS2 thin film photovoltaic device prototypes

Adam W. Welch; Lauryn L. Baranowski; Pawel Zawadzki; Clay DeHart; Steve Johnston; Stephan Lany; Colin A. Wolden; Andriy Zakutayev

PV prototypes prepared at 380-410°C by a self-regulated sputtering process using the conventional substrate device architecture. The p-type CuSbSe


Physical review applied | 2015

Entropy-Driven Clustering in Tetrahedrally Bonded Multinary Materials

Pawel Zawadzki; Andriy Zakutayev; Stephan Lany

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Physical review applied | 2015

Effects of Disorder on Carrier Transport in Cu 2 SnS 3

Lauryn L. Baranowski; Kevin McLaughlin; Pawel Zawadzki; Stephan Lany; Andrew G. Norman; Hannes Hempel; Rainer Eichberger; Thomas Unold; Eric S. Toberer; Andriy Zakutayev

absorber has a 1.1 eV optical absorption onset, ~


Semiconductor Science and Technology | 2016

A Review of Defects and Disorder in Multinary Tetrahedrally Bonded Semiconductors

Lauryn L. Baranowski; Pawel Zawadzki; Stephan Lany; Eric S. Toberer; Andriy Zakutayev

10^{5}


Physical Review B | 2015

Extended antisite defects in tetrahedrally bonded semiconductors

Pawel Zawadzki; Andriy Zakutayev; Stephan Lany

cm

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Stephan Lany

National Renewable Energy Laboratory

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Andriy Zakutayev

National Renewable Energy Laboratory

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Lauryn L. Baranowski

National Renewable Energy Laboratory

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Adam W. Welch

National Renewable Energy Laboratory

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Clay DeHart

National Renewable Energy Laboratory

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David S. Ginley

National Renewable Energy Laboratory

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Haowei Peng

National Renewable Energy Laboratory

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Steve Johnston

National Renewable Energy Laboratory

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