Publications 2014


Abou-Ras, D.; Dietrich, J.; Kavalakkatt, J.; Nichterwitz, M.; Schäfer, N.; Schmidt, S.S.; Schaffer, B.; Schaffer, M.; Koch, C.T.; Müller, M.M.; Bertram, F.; Christen, J.; Wilkinson, A.J.; Bauer, F.: Structure-property relationships in thin-film solar cells on multiple scales by correlative electron microscopy. In: Pavel Hozak [Ed.] : Proceedings of the 18th International Microscopy Conference (IMC2014), Prague, Czech. ISFM - CSMS, 2014. - ISBN 978-80-260-6721-4, p. MS-14-IN-2388/1


Baier, R.; Leendertz, C.; Abou-Ras, D.; Lux-Steiner, M.; Sadewasser, S.: Properties of electronic potential barriers at grain boundaries in Cu(In,Ga)Se2 thin films. Solar Energy Materials and Solar Cells 130 (2014), p. 124-131
doi:10.1016/j.solmat.2014.07.002


Bashouti, M.; Ristein, J.; Haick, H.; Christiansen, S.: A Non-Oxidative Approach Towards Hybrid Silicon Nanowire- Based Solar Cell Heterojunctions. Hybrid Materials 1 (2014), p. 1-14
doi:10.2478/hyma-2013-0002


Beleggia, M.; Kasama, T.; Larson, D.J.; Kelly, T.F.; Dunin-Borkowski, R.E.; Pozzi, G.: Towards quantitative off-axis electron holographic mapping of the electric field around the tip of a sharp biased metallic needle. Journal of Applied Physics 116 (2014), p. 024305/1-9
doi:10.1063/1.4887448
Open Access Version


Boit, C.; Schäfer, N.; Abou-Ras, D.; Helfmeier, C.; Glowacki, A.; Kerst, U.: Backside Failure Analysis Techniques: What’s The Gain Of Silicon Getting Thinner? In: Proceedings of the 21st International Symposium on the Physical and Failure Analysis of Integrated Circuits. IEEE, 2014. - ISBN 978-1-4799-3931-2 , p. 17-21
doi:10.1109/IPFA.2014.6898203


Dietrich, J.; Abou-Ras, D.; Schmidt, S.S.; Rissom, T.; Unold, T.; Cojocaru-Mirédin, O.; Niermann, T.; Lehmann, M.; Koch, C.T.; Boit, C.: Origins of electrostatic potential wells at dislocations in polycrystalline Cu(In,Ga)Se2 thin films. Journal of Applied Physics 115 (2014), p. 103507/1-12
doi:10.1063/1.4867398


Haghdadi, N.; Zarei-Hanzakia, A.; Abou-Ras, D.; Maghsoudia, M.H.; Ghorbania, A.; Kawasaki, M.: An investigation into the homogeneity of microstructure, strain pattern and hardness of pure aluminum processed by accumulative back extrusion. Materials Science and Engineering A 595 (2014), p. 179-187
doi:10.1016/j.msea.2013.11.077


Hoffmann, B.; Vassant, S.; Chen, X.-W.; Götzinger, S.; Sandoghdar, V.; Christiansen, S.: Fabrication and characterization of plasmonic nanocone antennas for strong spontaneous emission enhancement. Nanotechnology 26 (2014), p. 404001/1-8
doi:10.1088/0957-4484/26/40/404001


Kavalakkatt, J.; Abou-Ras, D.; Haarstrich, J.; Ronning, C.; Nichterwitz, M.; Caballero, R.; Rissom, T.; Unold, T.; Scheer, R.; Schock, H.-W.: Electron-beam-induced current at absorber back surfaces of Cu(In,Ga)Se2 thin-film solar cells. Journal of Applied Physics 115 (2014), p. 014504/1-10
doi:10.1063/1.4858393


Kumar, S.; Sarau, G.; Tessarek, C.; Bashouti, M.; Hähnel, A.; Christiansen, S.; Singh, R.: Study of iron-catalysed growth of β-Ga2O3 nanowires and their detailed characterization using TEM, Raman and cathodoluminescence techniques. Journal of Physics D: Applied Physics 47 (2014), p. 435101
doi:10.1088/0022-3727/47/43/435101


Kumar, S.; Tessarek, C.; Christiansen, S.; Singh, R.: A comparative study of β-Ga2O3 nanowires grown on different substrates using CVD technique. Journal of Alloys and Compounds 587 (2014), p. 812-818
doi:10.1016/j.jallcom.2013.10.165


Lentz, M.; Coelho, R.S.; Camin, B.; Fahrensohn, C.; Schaefer, N.; Selve, S.; Link, T.; Beyerlein, I.J.; Reimers, W.: In-situ,ex-situ EBSD and (HR-)TEM analyses of primary, secondary and tertiary twin development in an Mg–4 wt % Li alloy. Materials Science and Engineering A 610 (2014), p. 54-64
doi:10.1016/j.msea.2014.05.025


Lentz, M.; Klaus, M.; Coelho, R.S.; Schäfer, N.; Schmack, F.; Reimers, W.; Clausen, B.: Analysis of the Deformation Behavior of Magnesium-Rare Earth Alloys Mg-2 pct Mn-1 pct Rare Earth and Mg-5 pct Y-4 pct Rare Earth by In Situ Energy-Dispersive X-Ray Synchrotron Diffraction and Elasto-Plastic Self-Consistent Modeling. Metallurgical and Materials Transactions A 45A (2014), p. 5721-5735
doi:10.1007/s11661-014-2533-5


Lips, K.; Starr, D.; Bär, M.; Schulze, T.; Fenske, F.; Christiansen, S.; van de Krol, R.; Raoux, S.; Reichardt, G.; Schäfers, F.; Hendel, S.; Follath, R.; Bahrdt, J.; Scheer, M.; Wüstefeld, G.; Kuske, P.; Hävecker, M.; Knop-Gerickce, A.; Schlögl, R.; Rech, B.: EMIL: The Energy Materials In Situ Laboratory Berlin. In: IEEE 40th Photovoltaic Specialist Conference (PVSC) 2014 : Denver, Colorado, USA, 8 - 13 June 2014. IEEE, 2014. - ISBN 978-1-4799-4398-2, p. 698-700
doi:10.1109/PVSC.2014.6925017


Mueller, N.S.; Morfa, A.J.; Abou-Ras, D.; Oddone, V.; Ciuk, T.; Giersig, M.: Growing graphene on polycrystalline copper foils by ultra-high vacuum chemical vapor deposition. Carbon 78 (2014), p. 347–355
doi:10.1016/j.carbon.2014.07.011


Müller, M.; Abou-Ras, D.; Bertram, F.; Christen, J.; Rissom, T.: Symmetry dependent optoelectronic properties of grain boundaries in polycrystalline Cu(In,Ga)Se2 thin films. Journal of Applied Physics 115 (2014), p. 023514
doi:10.1063/1.4861149


Paraskeva, V.; Lazarou, C.; Hadjipanayi, M.; Norton, M.; Pravettoni, M.; Georghiou, G.E.; Heilmann, M.; Christiansen, S.: Photoluminescence analysis of coupling effects : The impact of shunt resistance and temperature. Solar Energy Materials and Solar Cells 130 (2014), p. 170–181
doi:10.1016/j.solmat.2014.07.008


Pietsch, M.; Jäckle, S.; Christiansen, S.: Interface investigation of planar hybrid n-Si/PEDOT:PSS solar cells with open circuit voltages up to 645 mV and efficiencies of 12.6 %. Applied Physics A - Materials Science and Processing 115 (2014), p. 1109-1113
doi:10.1007/s00339-014-8405-4


Rietwyk, K.J.; Smets, Y.; Bashouti, M.; Christiansen, S.H.; Schenk, A.; Tadich, A.; Edmonds, M.T.; Ristein, J.; Ley, L.; Pakes, C.I.: Charge Transfer Doping of Silicon. Physical Review Letters 112 (2014), p. 155502/1-5
doi:10.1103/Phys.RevLett.112.155502


Roscher, V.; Licklederer, M.; Schumacher, J.; Reyes Rios, G.; Hoffmann, B.; Christiansen, S.; Bachmann, J.: Accurate tuning of ordered nanotubular platinum electrodes by galvanic plating. Dalton Transactions 43 (2014), p. 4345-4350
doi:10.1039/c3dt52608a


Sarau, G.; Heilmann, M.; Latzel, M.; Christiansen, S.: Disentangling the effects of nanoscale structural variations on the light emission wavelength of single nano-emitters: InGaN/GaN multi quantum well nano-LEDs for a case study. Nanoscale 6 (2014), p. 11953 – 11962
doi:10.1039/c4nr02939a


Schaumberg, C.; Wollgarten, M.; Rademann, K.: Chemical Analysis on the Nanometer Scale: Characterization of Copper Nanoparticles by Electron Energy Loss Spectroscopy and Energy Filtered Transmission Electron Microscopy. In: Pavel Hozak [Ed.] : Proceedings of the 18th International Microscopy Conference (IMC2014), Prague, Czech. IFSM, CSMS, 2014. - ISBN 978-80-260-6720-7, p. 2280-2281
http://microscopy.cz/imc.html


Schaumberg, C.A.; Wollgarten, M.; Rademann, K.: Metallic Copper Colloids by Laser Ablation of Nonmetallic Copper Precursor Suspensions. The Journal of Physical Chemistry A 118 (2014), p. 8329-8337
doi:10.1021/jp501123y
Open Access Version


Schmidt, S.S.; Dietrich, J.; Koch, C.T.; Schaffer, B.; Schaffer, M.; Klingsporn, M.; Merdes, S.; Abou-Ras, D.: Interfaces and Extended Structural Defects in Chalcopyrite Thin-Film Solar Cells Studied by Transmission Electron Microscopy. Microscopy and Microanalysis 20 (2014), p. 530-531
doi:10.1017/S1431927614004371


Schmitt, S.W.; Brönstrup, G.; Shalev, G.; Srivastava, S.K.; Bashouti, M.Y.; Döhler, G.; Christiansen, S.H.: Probing photo-carrier collection efficiencies of individual silicon nanowires diodes on a wafer substrate. Nanoscale 6 (2014), p. 7897-7902
doi:10.1039/C4NR01258E


Schuetz, R.; Malhotra, S.; Thomas, I.; Strothkaemper, C.; Bartelt, A.; Schwarzburg, K.; Hannappel, T.; Fasting, C.; Eichberger, R.: Dynamics of a Covalently Conjoined FRET Dye Ensemble for Electron Injection into ZnO Nanorods. The Journal of Physical Chemistry C 118 (2014), p. 9336-9345
doi:10.1021/jp501062e


Schäfer, N.; Klaus, M.; Genzel, C.; Marquardt, J.; Schorr, S.; Rissom, T.; Schulli, C.; Schmid, T.; Abou-Ras, D.: Comparison of Techniques for Strain Measurements in CuInSe2 Absorber Layers of Thin-film Solar Cells. Microscopy and Microanalysis 20 (2014), p. 1464-1465
doi:10.1017/S1431927614009052


Som, T.; Troppenz, G.; Wendt, R.; Wollgarten, M.; Rappich, J.; Emmerling, F.; Rademann, K.: Graphene Oxide/α-Bi2O3 Composites for Visible-Light Photocatalysis, Chemical Catalysis and Solar Energy Conversion. ChemSusChem 7 (2014), p. 854-865
doi:10.1002/cssc.201300990
Open Access Version


Srivastava, S.K.; Kumar, D.; Schmitt, S.W.; Sood, K.N.; Christiansen, S.; Singh, P.K.: Large area fabrication of vertical silicon nanowire arrays by silver-assisted single-step chemical etching and their formation kinetics. Nanotechnology 25 (2014), p. 175601/1-17
doi:10.1088/0957-4484/25/17/175601


Steffens, S.; Becker, C.; Amkreutz, D.; Klossek, A.; Kittler, M.; Chen, Y.-Y.; Schnegg, A.; Klingsporn, M.; Abou-Ras, D.; Lips, K.; Rech, B.: Impact of dislocations and dangling bond defects on the electrical performance of crystalline silicon thin films. Applied Physics Letters 105 (2014), p. 022108/1-5
doi:10.1063/1.4890625


Talebi, R.; Nahal, A.; Muhammad, Y.B.; Christiansen, S.: Optical nano-structuring in light-sensitive AgCl-Ag waveguide thin films: wavelength effect. Optics Express 22 (2014), p. 30669-30682
doi:10.1364/OE.22.030669


Tessarek, C.; Figge, S.; Gust, A.; Heilmann, M.; Dieker, C.; Spiecker, E.; Christiansen, S.: Optical properties of vertical, tilted and in-plane GaN nanowires on different crystallographic orientations of sapphire. Journal of Physics D: Applied Physics 47 (2014), p. 394008/1-9
doi:10.1088/0022-3727/47/39/394008


Tessarek, C.; Heilmann, M.; Butzen, E.; Haab, A.; Hardtdegen, H.; Dieker, C.; Spiecker, E.; Christiansen, S.: The Role of Si during the Growth of GaN Micro- and Nanorods. Crystal Growth & Design 14 (2014), p. 1486–1492
doi:10.1021/cg500054w


Tessarek, C.; Heilmann, M.; Christiansen, S.: Whispering gallery modes in GaN microdisks, microrods and nanorods grown by MOVPE. Physica Status Solidi C 11 (2014), p. 794-797
doi:10.1002/pssc.201300421


Tessarek, C.; Röder, R.; Michalsky, T.; Geburt, S.; Franke, H.; Schmidt-Grund, R.; Heilmann, M.; Hoffmann, B.; Ronning, C.; Grundmann, M.; Christiansen, S.: Improving the Optical Properties of Self-Catalyzed GaN Microrods toward Whispering Gallery Mode Lasing. ACS Photonics 1 (2014), p. 990-997
doi:10.1021/ph500220v


Wollgarten, M.; Habeck, M.: Autonomous reconstruction and segmentation of tomographic data. Micron 63 (2014), p. 20-27
doi:10.1016/j.micron.2014.02.005
Open Access Version


Wollgarten, M.; Stapel, H.; Garcia-Moreno, F.: Use your smartphone to calibrate your TEM's goniometer. In: Pavel Hozak [Ed.] : Proceedings of the 18th International Microscopy Conference (IMC2014), Prague, Czech. IFSM, CSMS, 2014. - ISBN 978-80-260-6720-7 , p. 979-980
http://microscopy.cz/imc.html