References of "Weiss, Thomas Paul 50003320"
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See detailHighly conductive ZnO films with high near infrared transparency
Hala, Matej UL; Fujii, Shohei; Redinger, Alex UL et al

in Progress in Photovoltaics: Research and Applications (2015)

We present an approach for deposition of highly conductive nominally undoped ZnO films that are suitable for the n-type window of low band gap solar cells. We demonstrate that low-voltage radio frequency ... [more ▼]

We present an approach for deposition of highly conductive nominally undoped ZnO films that are suitable for the n-type window of low band gap solar cells. We demonstrate that low-voltage radio frequency (RF) biasing of growing ZnO films during their deposition by non-reactive sputtering makes them as conductive as when doped by aluminium (ρ≤1·10−3Ω cm). The films prepared with additional RF biasing possess lower free-carrier concentration and higher free-carrier mobility than Al-doped ZnO (AZO) films of the same resistivity, which results in a substantially higher transparency in the near infrared region (NIR). Furthermore, these films exhibit good ambient stability and lower high-temperature stability than the AZO films of the same thickness. We also present the characteristics of Cu(InGa)Se2, CuInSe2 and Cu2ZnSnSe4-based solar cells prepared with the transparent window bilayer formed of the isolating and conductive ZnO films and compare them to their counterparts with a standard ZnO/AZO bilayer. We show that the solar cells with nominally undoped ZnO as their transparent conductive oxide layer exhibit an improved quantum efficiency for λ > 900 nm, which leads to a higher short circuit current density JSC. This aspect is specifically beneficial in preparation of the Cu2ZnSnSe4 solar cells with band gap down to 0.85 eV; our champion device reached a JSC of nearly 39 mAcm−2, an open circuit voltage of 378 mV, and a power conversion efficiency of 8.4 %. [less ▲]

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See detailDetection of a MoSe2 secondary phase layer in CZTSe by spectroscopic ellipsometry
Demircio glu, Ozden; Mousel, Marina UL; Redinger, Alex UL et al

in JOURNAL OF APPLIED PHYSICS (2015), 118

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See detailThe band gap of Cu2ZnSnSe4: Effect of order-disorder
Rey, Germain UL; Redinger, Alex UL; Sendler, Jan UL et al

in Applied Physics Letters (2014), 105

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See detailDifferent Bandgaps in Cu2ZnSnSe4 : a high temperature coevaporation study
Redinger, Alex UL; Sendler, Jan UL; Djemour, Rabie UL et al

in IEEE Journal of Photovoltaics (2014)

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See detailDirect Evaluation of Defect Distributions From Admittance Spectroscopy
Weiss, Thomas Paul UL; Redinger, Alex UL; Regesch, David UL et al

in IEEE JOURNAL OF PHOTOVOLTAICS (2014), 4

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See detailMolecular beam epitaxy of Cu2ZnSnSe4 thin films grown on GaAs(001)
Redinger, Alex UL; Djemour, Rabie UL; Weiss, Thomas Paul UL et al

Scientific Conference (2013, June)

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See detailCu-rich precursors improve kesterite solar cells
Mousel, Marina UL; Schwarz, Torsten; Djemour, Rabie UL et al

in Advanced Energy Materials (2013), 4

Detailed reference viewed: 151 (9 UL)