Search Results - "Riede, M"

Doping of organic semiconductors by Lüssem, B., Riede, M., Leo, K.

“…The understanding and applications of organic semiconductors have shown remarkable progress in recent years. This material class has been developed from being…”
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Influence of process parameter variation on the microstructure of thin walls made of Inconel 718 deposited via laser-based directed energy deposition with blown powder by Mueller, M., Franz, K., Riede, M., López, E., Brueckner, F., Leyens, C.

“…In laser-based directed energy deposition (L-DED) of Inconel 718 the microstructure of the fabricated components strongly depends on the applied process…”
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Efficiency limiting factors of organic bulk heterojunction solar cells identified by electrical impedance spectroscopy by Glatthaar, M., Riede, M., Keegan, N., Sylvester-Hvid, K., Zimmermann, B., Niggemann, M., Hinsch, A., Gombert, A.

“…The current–voltage characteristic and the performance of organic bulk-heterojunction solar cells are very sensitive to small variations in the production…”
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In Situ Observations of the Growth Mode of Vacuum-Deposited α‑Sexithiophene by Derrien, T. L, Lauritzen, A. E, Kaienburg, P, Hardigree, J. F. M, Nicklin, C, Riede, M

“…The real-time morphological evolution of vacuum-deposited α-sexithiophene (α-6T) on a weakly interacting (glass) substrate at ambient temperature is reported…”
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Zinc phthalocyanine — Influence of substrate temperature, film thickness, and kind of substrate on the morphology by Schünemann, C., Elschner, C., Levin, A.A., Levichkova, M., Leo, K., Riede, M.

“…Zinc phthalocyanine (ZnPc), C32H16N8Zn, is a planar organic molecule having numerous optical and electrical applications in organic electronics. This work…”
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In-situ observation of stacking fault evolution in vacuum-deposited C60 by Hardigree, J. F. M., Ramirez, I. R., Mazzotta, G., Nicklin, C., Riede, M.

“…We report an in-situ study of stacking fault evolution in C60 thin films using grazing-incidence x-ray scattering. A Williamson-Hall analysis of the main…”
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Tuning the ambipolar behaviour of organic field effect transistors via band engineering by Warren, P. R., Hardigree, J. F. M., Lauritzen, A. E., Nelson, J., Riede, M.

“…We report on a method for fabricating balanced hole and electron transport in ambipolar organic field-effect transistors (OFETs) based on the co-evaporation of…”
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Characterization of tandem organic solar cells comprising subcells of identical absorber material by Timmreck, R., Leo, K., Riede, M.

“…Recently organic tandem solar cells with record efficiency had been shown comprising identical absorber materials in both subcells. Such structures pose new…”
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Organic solar cells using inverted layer sequence by Glatthaar, M., Niggemann, M., Zimmermann, B., Lewer, P., Riede, M., Hinsch, A., Luther, J.

“…We report on a concept for organic solar cells where the layer sequence is inverted compared to the conventional setup. In such a configuration a conducting…”
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ITO-free wrap through organic solar cells—A module concept for cost-efficient reel-to-reel production by Zimmermann, B., Glatthaar, M., Niggemann, M., Riede, M.K., Hinsch, A., Gombert, A.

“…Organic solar cells have the potential to make cheap photovoltaic devices feasible. In order to achieve this, material and production costs have to be…”
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Simple technique for determining the refractive index of phase-change materials using near-infrared reflectometry by Gemo, E., Kesava, S. V., Ruiz De Galarreta, C., Trimby, L., García-Cuevas Carrillo, S., Riede, M., Baldycheva, A., Alexeev, A., Wright, C. D.

“…Phase-change materials, such as the well-known ternary alloy Ge 2 Sb 2 Te 5 , are essential to many types of photonic devices, from re-writeable optical disk…”
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Increase in internal quantum efficiency in small molecular oligothiophene: C60 mixed heterojunction solar cells by substrate heating by Wynands, D., Levichkova, M., Leo, K., Uhrich, C., Schwartz, G., Hildebrandt, D., Pfeiffer, M., Riede, M.

“…We present small molecule solar cells with α,ω-bis-(dicyanovinylene)-sexithiophene:C60 mixed heterojunctions, reaching power conversion efficiencies of…”
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Towards efficient tin-doped indium oxide (ITO)-free inverted organic solar cells using metal cathodes by Meiss, J., Riede, M. K., Leo, K.

“…We present zinc phthalocyanine ( ZnPc ) : C 60 bulk-heterojunction top-illuminated organic solar cells using ultrathin metal layers as transparent top…”
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Electroabsorption studies of organic p-i-n solar cells: Increase of the built-in voltage by higher doping concentration in the hole transport layer by Siebert-Henze, E., Lyssenko, V.G., Fischer, J., Tietze, M., Brueckner, R., Menke, T., Leo, K., Riede, M.

“…[Display omitted] •Small molecule organic solar cells based on the pin concept are investigated.•Electroabsorption spectroscopy is used to determine their…”
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Dicyanovinyl substituted oligothiophenes: Thermal stability, mobility measurements, and performance in photovoltaic devices by Wrackmeyer, M.S., Hein, M., Petrich, A., Meiss, J., Hummert, M., Riede, M.K., Leo, K.

“…A series of dicyanovinyl-oligothiophenes are investigated concerning their thermal stability, absorption in thin film, and hole mobility. Due to very high…”
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Aging of flat heterojunction zinc phthalocyanine/fullerene C60 organic solar cells by LESSMANN, R, HONG, Z, SCHOLZ, S, MAENNIG, B, RIEDE, M. K, LEO, K

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Simple technique for determining the refractive index of phase-change materials using near-infrared reflectometry: publisher’s note by Gemo, E., Kesava, S. V., De Galarreta, C. Ruiz, Trimby, L., Carrillo, S. García-Cuevas, Riede, M., Baldycheva, A., Alexeev, A., Wright, C. D.

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Structure–property relationship of acceptor-substituted oligothiophenes by Wrackmeyer, M.S., Hummert, M., Hartmann, H., Riede, M.K., Leo, K.

“…A series of oligothiophenes that are end-capped with dicyanovinyl (DCV) and 1,3,2-(2 H)-dioxaborine (DOB) moieties has been prepared using standard procedures…”
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Photoelectron spectroscopy investigation of thin metal films employed as top contacts in transparent organic solar cells by Olthof, S., Meiss, J., Lüssem, B., Riede, M.K., Leo, K.

“…The performance of transparent metal top contacts in organic solar cells can strongly be improved by employing surfactant layers. We use scanning electron…”
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Front Cover: Doping of organic semiconductors (Phys. Status Solidi A 1/2013) by Lüssem, B., Riede, M., Leo, K.

“…The cover shows a schematic visualisation of the doping process in organic semiconductors. A matrix of the hole transport material MeO‐TPD (black) is p‐doped…”
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