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Rapid thermal processing annealing challenges for large scale Cu2ZnSnS4 thin films

03.10.2014 | Laura Vauche, Jérôme Dubois, Aurélie Laparre, Marcel Pasquinelli, Sylvie Bodnar, Pierre‐Philippe Grand, Salvador Jaime, physica status solidi (a), 2014

Electrodeposition followed by rapid thermal annealing is a favorable process for industrial solar thin film fabrication. In this regard, we attempt to develop a process for earth‐abundant pure sulfide kesterite solar cells fabrication of Cu2ZnSnS4 (CZTS) at pre‐industrial scale (15 × 15 cm2). ...


Site‐controlled growth of GaAs nanoislands on pre‐patterned silicon substrates

03.10.2014 | Muhammad Usman, Johann Peter Reithmaier, Mohamed Benyoucef, physica status solidi (a), 2014

GaAs islands have been grown by molecular beam epitaxy on Si (100) substrates patterned with nanoscale holes using only few monolayer deposition thicknesses. The site‐controlled growth has been achieved without masking the Si surface with SiO2 between the patterned holes. The nucleation density ...


A simulation study on the impact of band gap profile variations and secondary barriers on the temperature behavior, performance ratio, and energy yield of Cu(In,Ga)(Se,S)2 solar cells

03.10.2014 | Christian Schubbert, Patrick Eraerds, Michael Richter, Jürgen Parisi, Ingo Riedel, Thomas Dalibor, Jörg Palm, physica status solidi (a), 2014

Using device simulations, we investigate the change of the temperature behavior of Cu(In,Ga)(Se,S)2 solar cells. Our goal is to understand the behavior of the performance ratio (PR), normalized energy yield (Y), and the temperature coefficient of the open‐circuit voltage as a contribution to ...


Self‐assembled Au dots in SiGe/Si layers for plasmonic application

03.10.2014 | Peter I. Gaiduk, Arne Nylandsted Larsen, physica status solidi (a), 2014

The concept of this study is based on self‐assembled formation of voids in strained Si/SiGe heterostructures, and formation of nano‐shells and nano‐particles of gold through a gettering process. The gettering of vacuum deposited gold to the voids was studied using Rutherford backscattering and ...


Effects of surfactant and fabrication procedure on the electrical conductivity and electromagnetic shielding of single‐walled carbon nanotube films

29.09.2014 | F. F. Komarov, P. Zukowski, R. M. Kryvasheyeu, E. Munoz, T. N. Koltunowicz, V. N. Rodionova, A. K. Togambaeva, physica status solidi (a), 2014

Two different procedures of carbon nanotube film fabrication are discussed. The size, structural, and optical characteristics as well as electrophysical properties of initial nanotubes and the prepared buckypaper are studied. A nature of the observed temperature activated charge transport is ...


The gas‐dynamic synthesis of diamond by thermal activation

16.07.2014 | Alexei Emelyanov, Aleksey Rebrov, Ivan Yudin, physica status solidi (a), 2014

The study presents results on deposition of diamond structures from high‐velocity flows of carbon‐containing a gas mixture activated by hot surfaces. Important problems were solved by creation of the reactor using a spiral of heat‐resistant material, inserted into the chamber with an inlet ...


Aluminum doping of CuInSe2 synthesized by solution process and its effect on structure, morphology, and bandgap tuning

14.07.2014 | Zhi Yan, Weizhi Deng, Xia Zhang, Qian Yuan, Peiran Deng, Jun Liang, Lei Sun, physica status solidi (a), 2014

Al‐doped CuInSe2 material is prepared by a low‐cost wet chemical process. The key properties of Al‐doped CuInSe2 as a successful solar cell material are investigated, such as crystal structure, morphology, optical properties, and bandgap. In situ X‐ray diffraction measurements indicate that the ...


Change of diamond film structure and morphology with N2 addition in MW PECVD apparatus with linear antenna delivery system

14.07.2014 | Marie Jakl Krečmarová, Václav Petrák, Andrew Taylor, Kamatchi Jothiramalingam Sankaran, I‐Nan Lin, Aleš Jäger, Viera ..., physica status solidi (a), 2014

Deposition of nano‐crystalline diamond (NCD) over large areas is of high interest for industrial applications. For instance NCD is an excellent substrate for cell growth but it is also interesting for photonic applications associated with nitrogen‐vacancy (NV) centres. There have been many ...


Synthesis, characterization, and electronic structure of few‐layer MoSe2 granular films

14.07.2014 | Zafer Mutlu, Darshana Wickramaratne, Hamed H. Bay, Zachary J. Favors, Mihrimah Ozkan, Roger Lake, Cengiz S. Ozkan, physica status solidi (a), 2014

Few‐layer MoSe2 granular films were prepared using rapid thermal processing (RTP) of stacked elemental layers (SELs) deposited using electron beam evaporation in the sequence of Mo/Se/Mo. RTP was carried out at various temperatures ranging from 550 to 750 °C, and durations ranging from 90 to ...


Effect of Mo6S3I6 nanowires on the dielectric properties of poly(ϵ‐caprolactone)

03.09.2013 | Šarūnas Svirskas, Džiugas Jablonskas, Vytautas Samulionis, Austė Kuprevičiūtė, Jūras Banys, Seow Jecg Chin, Tony McNally, physica status solidi (a), 2013

The broadband dielectric properties of composites of poly(ϵ‐caprolactone) (PCL) and Mo6S3I6 (MoSI) nanowires at loadings up to 5 wt% were investigated. Three different relaxations were observed for these composites, two relaxations are associated with the polymer matrix and the lower ...


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