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2.978 Aktuelle Fachpublikationen in physica status solidi (c)

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Influence of Rare Earth (Nd and Tb) Co‐Doping on ZnO Thin Films Properties

25.10.2017 | Amina El Fakir, Mouaad Sekkati, Guy Schmerber, Azzam Belayachi, Zineb Edfouf, Mohammed Regragui, Fouzia Cherkaoui El ..., physica status solidi (c), 2017

Zinc oxide thin films co‐doped with rare earth (Nd and Tb) have been grown on heated glass substrates (350 °C) by chemical spray pyrolysis method. The effect of doping rate on structural, optical, and electrical properties is studied. X‐ray diffraction confirmed that all the prepared films have ...

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Surface Modifications of Na and K Metal Incorporated Cu(In,Ga)Se2 Absorbers Investigated by Synchrotron‐Based Spectroscopies

25.10.2017 | Isheta Majumdar, Bünyamin Ümsür, Binoy Chacko, Dieter Greiner, Martha Ch. Lux‐Steiner, Rutger Schlatmann, Iver Lauermann, physica status solidi (c), 2017

Na and K metals have been evaporated on a Cu(In,Ga)Se2 (CIGSe) thin film solar cell absorber at 400 °C in order to investigate the effect of alkali metal incorporation on the very near‐surface (up to 5 nm) region of the CIGSe absorber using soft X‐ray spectroscopy techniques, focusing on the ...

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The Impact of Na and K on Properties of Cu2ZnSnS4 Thin Films Prepared by Ultrasonic Spray Technique

24.10.2017 | Mouaad Sekkati, Mhamed Taibi, Guy Schmerber, El Bachir Benamar, Mohammed Regragui, Fouzia Cherkaoui El Moursli, Cedr ..., physica status solidi (c), 2017

CZTS thin films are deposited onto glass and Mo‐coated glass substrates by ultrasonic spray technique, followed by a sulfurization under argon atmosphere at 500 °C during 1 h. We have investigated how the addition of the alkali can influence Cu2ZnSnS4 thin films properties. X‐ray diffraction ...

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Luminescent Downshifting Layers Using Organic Dyes and Quantum Dots

17.10.2017 | Charlène Crevant, Christophe Lucchesi, Myriam Paire, Jean‐François Guillemoles, physica status solidi (c), 2017

The use of an analytical model on luminescent downshifting layers (LDSLs) has been used to estimate the short‐circuit current. Various LDSL have been tested with two different polymers and luminescent materials. These devices have been coupled with a CIGS solar cell. The CdSe/ZnS quantum dots ...

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Operation of the Three Terminal Heterojunction Bipolar Transistor Solar Cell

16.10.2017 | Antonio Martí, Elisa Antolín, Pablo García‐Linares, Esther López, Juan Villa, Iñigo Ramiro, physica status solidi (c), 2017

The three terminal heterojunction bipolar transistor solar cell (3T‐HBTSC) is characterized by a muti‐junction solar cell structure that resembles that of a (npn or pnp) bipolar transistor. The top cell consists of the top np (pn) layers which are made of a high bandgap semiconductor. The ...

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Tailoring Nano‐Textures for Optimized Light In‐Coupling in Liquid Phase Crystallized Silicon Thin‐Film Solar Cells

19.09.2017 | Grit Köppel, David Eisenhauer, Bernd Rech, Christiane Becker, physica status solidi (c), 2017

Thin‐film solar cells based on liquid phase crystallized silicon (LPC Si) with 8–20 μm thick absorber layers demand for advanced light management to achieve high photocurrent densities. Open‐circuit voltages (Voc) >600 mV underline the high silicon material quality of LPC silicon thin‐films on ...

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Role of the post‐annealing conditions on the conductivity of niobium doped titanium dioxide electrodes prepared by sol–gel and their function in organic solar cells

18.09.2017 | Peter Fischer, Liz Montañez, Shahidul Alam, Roland Roesch, Ulrich S. Schubert, Harald Hoppe, Edda Rädlein, physica status solidi (c), 2017

Current density voltage curves of the solar cell built on sol‐gel processed TiO2:Nb (TNO) and ITO electrodes. Insert graphic shows the energy level diagram of the TNO/ZnO/PEI/ P3HT:PCBM /MoO3/Al organic solar cell.

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Cadmium Sulfide Is a Very Unusual Model Semiconductor

18.09.2017 | Karl W. Böer, physica status solidi (c), 2017

CdS has three states that are thermodynamically stable, one at low fields and two at high fields when stationary high‐field domains are initiated in a range of negative differential conductivity, one when the domain is attached to the cathode then the CdS is n‐type. And the other one when the ...

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High Sensitivity Flame Sensor Based on PbS Colloidal Quantum Dots

15.09.2017 | Andrea De Iacovo, Carlo Venettacci, Lorenzo Colace, Leonardo Scopa, Sabrina Foglia, physica status solidi (c), 2017

Flame sensing and early fire detection are primary features in modern security and surveillance systems. Optical detection systems are widely developed and offer the highest sensitivity and selectivity but they are still expensive and show a high power budget. Here we propose a low‐cost, ...

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Flexible Cu(In,Ga)Se2 Based Solar Cells Using Molybdenum Foils as Substrate

14.09.2017 | Mishael Stanley, Marie Jubault, Fréderique Donsanti, Negar Naghavi, physica status solidi (c), 2017

Recently, there has been increased interest in the use of flexible substrates for the fabrication of Cu(In,Ga)Se2 solar cells due to their light weight and easy application. This work focuses on the use of 150 μm thick Mo foils as substrates which has not received much attention compared to ...

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