DFG research training group GRK 1896 at Erlangen University

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DFG research training group GRK 1896 at Erlangen University

Authors

Publications

Fully printed organic tandem solar cells using solution-processed silver nanowires and opaque silver as charge collecting electrodes

Guo, Fei; Li, Ning; Radmilović, Vuk; Radmilović, Velimir R.; Turbiez, Mathieu; Spiecker, Erdmann; Forberich, Karen; Brabec, Christoph J.

(Royal Soc Chemistry, Cambridge, 2015)

TY  - JOUR
AU  - Guo, Fei
AU  - Li, Ning
AU  - Radmilović, Vuk
AU  - Radmilović, Velimir R.
AU  - Turbiez, Mathieu
AU  - Spiecker, Erdmann
AU  - Forberich, Karen
AU  - Brabec, Christoph J.
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2966
AB  - We report in this work efficient, fully printed tandem organic solar cells (OSCs) using solution-processed silver as the reflective bottom electrode and silver nanowires as the transparent top electrode. Employing two different band-gap photoactive materials with complementary absorption, the tandem OSCs are fully printed under ambient conditions without the use of indium tin oxide and vacuum-based deposition. The fully printed tandem devices achieve power conversion efficiencies of 5.81% (on glass) and 4.85% (on flexible substrate) without open circuit voltage (V-oc) losses. These results represent an important progress towards the realization of low-cost tandem OSCs by demonstrating the possibility of printing efficient organic tandem devices under ambient conditions onto production relevant carrier substrates.
PB  - Royal Soc Chemistry, Cambridge
T2  - Energy & Environmental Science
T1  - Fully printed organic tandem solar cells using solution-processed silver nanowires and opaque silver as charge collecting electrodes
EP  - 1697
IS  - 6
SP  - 1690
VL  - 8
DO  - 10.1039/c5ee00184f
ER  - 
@article{
author = "Guo, Fei and Li, Ning and Radmilović, Vuk and Radmilović, Velimir R. and Turbiez, Mathieu and Spiecker, Erdmann and Forberich, Karen and Brabec, Christoph J.",
year = "2015",
abstract = "We report in this work efficient, fully printed tandem organic solar cells (OSCs) using solution-processed silver as the reflective bottom electrode and silver nanowires as the transparent top electrode. Employing two different band-gap photoactive materials with complementary absorption, the tandem OSCs are fully printed under ambient conditions without the use of indium tin oxide and vacuum-based deposition. The fully printed tandem devices achieve power conversion efficiencies of 5.81% (on glass) and 4.85% (on flexible substrate) without open circuit voltage (V-oc) losses. These results represent an important progress towards the realization of low-cost tandem OSCs by demonstrating the possibility of printing efficient organic tandem devices under ambient conditions onto production relevant carrier substrates.",
publisher = "Royal Soc Chemistry, Cambridge",
journal = "Energy & Environmental Science",
title = "Fully printed organic tandem solar cells using solution-processed silver nanowires and opaque silver as charge collecting electrodes",
pages = "1697-1690",
number = "6",
volume = "8",
doi = "10.1039/c5ee00184f"
}
Guo, F., Li, N., Radmilović, V., Radmilović, V. R., Turbiez, M., Spiecker, E., Forberich, K.,& Brabec, C. J.. (2015). Fully printed organic tandem solar cells using solution-processed silver nanowires and opaque silver as charge collecting electrodes. in Energy & Environmental Science
Royal Soc Chemistry, Cambridge., 8(6), 1690-1697.
https://doi.org/10.1039/c5ee00184f
Guo F, Li N, Radmilović V, Radmilović VR, Turbiez M, Spiecker E, Forberich K, Brabec CJ. Fully printed organic tandem solar cells using solution-processed silver nanowires and opaque silver as charge collecting electrodes. in Energy & Environmental Science. 2015;8(6):1690-1697.
doi:10.1039/c5ee00184f .
Guo, Fei, Li, Ning, Radmilović, Vuk, Radmilović, Velimir R., Turbiez, Mathieu, Spiecker, Erdmann, Forberich, Karen, Brabec, Christoph J., "Fully printed organic tandem solar cells using solution-processed silver nanowires and opaque silver as charge collecting electrodes" in Energy & Environmental Science, 8, no. 6 (2015):1690-1697,
https://doi.org/10.1039/c5ee00184f . .
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RuOx nanoparticles deposited on TiO2 nanotube arrays by ion-exchange method as electrocatalysts for the hydrogen evolution reaction in acid solution

Lačnjevac, Uroš; Radmilović, Vuk; Radmilović, Velimir R.; Krstajić, Nedeljko V.

(Pergamon-Elsevier Science Ltd, Oxford, 2015)

TY  - JOUR
AU  - Lačnjevac, Uroš
AU  - Radmilović, Vuk
AU  - Radmilović, Velimir R.
AU  - Krstajić, Nedeljko V.
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2981
AB  - Nanocomposite cathodes for the hydrogen evolution reaction (HER) were prepared by deposition of RuOx catalyst particles on self-organized titania nanotube (TiNT) arrays of highly developed surface area, following a procedure that involved the initial cathodic intercalation of H+ into the TiNT walls and the subsequent two-step ion-exchange process. Transmission electron microscopy (TEM) and energy dispersive X-ray spectroscopy (EDS) analyses of obtained Ru-TiNT samples revealed that the concentration of RuOx particles in the size range of a few nanometers was the highest at the surface of the TiNT layer and steadily decreased to a minimum value at about 4.5 mu m inside the tubes. The capacitive behavior and electrocatalytic activity for the HER of Ru-TiNT nanocomposites, hydrogenated TiNT samples (H-TiNT) and compact TiO2 were investigated in 1.0 M HClO4 solution at room temperature by means of cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), Mott-Schottky analysis and steady-state polarization measurements. It was shown that cathodic hydrogenation treatment induced a four orders of magnitude higher concentration of electron donors in TiNT structures providing their quasimetallic behavior in the range of potentials corresponding to the HER. Ru-TiNT cathodes exhibited a more than 250 mV lower overpotential for the HER with respect to bare H-TiNT substrates at the current density of -50 mA cm (2). A decrease of the Tafel slope from about -120 mV/dec for H-TiNT samples to as low as -70 mV/dec for the Ru-TiNT sample with longer tubes was explained by the formal kinetics approach.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Electrochimica Acta
T1  - RuOx nanoparticles deposited on TiO2 nanotube arrays by ion-exchange method as electrocatalysts for the hydrogen evolution reaction in acid solution
EP  - 190
SP  - 178
VL  - 168
DO  - 10.1016/j.electacta.2015.04.012
ER  - 
@article{
author = "Lačnjevac, Uroš and Radmilović, Vuk and Radmilović, Velimir R. and Krstajić, Nedeljko V.",
year = "2015",
abstract = "Nanocomposite cathodes for the hydrogen evolution reaction (HER) were prepared by deposition of RuOx catalyst particles on self-organized titania nanotube (TiNT) arrays of highly developed surface area, following a procedure that involved the initial cathodic intercalation of H+ into the TiNT walls and the subsequent two-step ion-exchange process. Transmission electron microscopy (TEM) and energy dispersive X-ray spectroscopy (EDS) analyses of obtained Ru-TiNT samples revealed that the concentration of RuOx particles in the size range of a few nanometers was the highest at the surface of the TiNT layer and steadily decreased to a minimum value at about 4.5 mu m inside the tubes. The capacitive behavior and electrocatalytic activity for the HER of Ru-TiNT nanocomposites, hydrogenated TiNT samples (H-TiNT) and compact TiO2 were investigated in 1.0 M HClO4 solution at room temperature by means of cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), Mott-Schottky analysis and steady-state polarization measurements. It was shown that cathodic hydrogenation treatment induced a four orders of magnitude higher concentration of electron donors in TiNT structures providing their quasimetallic behavior in the range of potentials corresponding to the HER. Ru-TiNT cathodes exhibited a more than 250 mV lower overpotential for the HER with respect to bare H-TiNT substrates at the current density of -50 mA cm (2). A decrease of the Tafel slope from about -120 mV/dec for H-TiNT samples to as low as -70 mV/dec for the Ru-TiNT sample with longer tubes was explained by the formal kinetics approach.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Electrochimica Acta",
title = "RuOx nanoparticles deposited on TiO2 nanotube arrays by ion-exchange method as electrocatalysts for the hydrogen evolution reaction in acid solution",
pages = "190-178",
volume = "168",
doi = "10.1016/j.electacta.2015.04.012"
}
Lačnjevac, U., Radmilović, V., Radmilović, V. R.,& Krstajić, N. V.. (2015). RuOx nanoparticles deposited on TiO2 nanotube arrays by ion-exchange method as electrocatalysts for the hydrogen evolution reaction in acid solution. in Electrochimica Acta
Pergamon-Elsevier Science Ltd, Oxford., 168, 178-190.
https://doi.org/10.1016/j.electacta.2015.04.012
Lačnjevac U, Radmilović V, Radmilović VR, Krstajić NV. RuOx nanoparticles deposited on TiO2 nanotube arrays by ion-exchange method as electrocatalysts for the hydrogen evolution reaction in acid solution. in Electrochimica Acta. 2015;168:178-190.
doi:10.1016/j.electacta.2015.04.012 .
Lačnjevac, Uroš, Radmilović, Vuk, Radmilović, Velimir R., Krstajić, Nedeljko V., "RuOx nanoparticles deposited on TiO2 nanotube arrays by ion-exchange method as electrocatalysts for the hydrogen evolution reaction in acid solution" in Electrochimica Acta, 168 (2015):178-190,
https://doi.org/10.1016/j.electacta.2015.04.012 . .
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