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 . .

TY  - JOUR
AU  - Guo, Fei
AU  - Li, Ning
AU  - Fecher, Frank W.
AU  - Gasparini, Nicola
AU  - Quiroz, Cesar Omar Ramirez
AU  - Bronnbauer, Carina
AU  - Hou, Yi
AU  - Radmilović, Vuk
AU  - Radmilović, Velimir R.
AU  - Spiecker, Erdmann
AU  - Forberich, Karen
AU  - Brabec, Christoph J.
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3116
AB  - The multi-junction concept is the most relevant approach to overcome the Shockley-Queisser limit for single-junction photovoltaic cells. The record efficiencies of several types of solar technologies are held by series-connected tandem configurations. However, the stringent current-matching criterion presents primarily a material challenge and permanently requires developing and processing novel semiconductors with desired bandgaps and thicknesses. Here we report a generic concept to alleviate this limitation. By integrating series-and parallel-interconnections into a triple-junction configuration, we find significantly relaxed material selection and current-matching constraints. To illustrate the versatile applicability of the proposed triple-junction concept, organic and organic-inorganic hybrid triple-junction solar cells are constructed by printing methods. High fill factors up to 68% without resistive losses are achieved for both organic and hybrid triple-junction devices. Series/parallel triple-junction cells with organic, as well as perovskite-based subcells may become a key technology to further advance the efficiency roadmap of the existing photovoltaic technologies.
PB  - Nature Publishing Group, London
T2  - Nature Communications
T1  - A generic concept to overcome bandgap limitations for designing highly efficient multi-junction photovoltaic cells
VL  - 6
DO  - 10.1038/ncomms8730
ER  - 

@article{
author = "Guo, Fei and Li, Ning and Fecher, Frank W. and Gasparini, Nicola and Quiroz, Cesar Omar Ramirez and Bronnbauer, Carina and Hou, Yi and Radmilović, Vuk and Radmilović, Velimir R. and Spiecker, Erdmann and Forberich, Karen and Brabec, Christoph J.",
year = "2015",
abstract = "The multi-junction concept is the most relevant approach to overcome the Shockley-Queisser limit for single-junction photovoltaic cells. The record efficiencies of several types of solar technologies are held by series-connected tandem configurations. However, the stringent current-matching criterion presents primarily a material challenge and permanently requires developing and processing novel semiconductors with desired bandgaps and thicknesses. Here we report a generic concept to alleviate this limitation. By integrating series-and parallel-interconnections into a triple-junction configuration, we find significantly relaxed material selection and current-matching constraints. To illustrate the versatile applicability of the proposed triple-junction concept, organic and organic-inorganic hybrid triple-junction solar cells are constructed by printing methods. High fill factors up to 68% without resistive losses are achieved for both organic and hybrid triple-junction devices. Series/parallel triple-junction cells with organic, as well as perovskite-based subcells may become a key technology to further advance the efficiency roadmap of the existing photovoltaic technologies.",
publisher = "Nature Publishing Group, London",
journal = "Nature Communications",
title = "A generic concept to overcome bandgap limitations for designing highly efficient multi-junction photovoltaic cells",
volume = "6",
doi = "10.1038/ncomms8730"
}

Guo, F., Li, N., Fecher, F. W., Gasparini, N., Quiroz, C. O. R., Bronnbauer, C., Hou, Y., Radmilović, V., Radmilović, V. R., Spiecker, E., Forberich, K.,& Brabec, C. J.. (2015). A generic concept to overcome bandgap limitations for designing highly efficient multi-junction photovoltaic cells. in Nature Communications
Nature Publishing Group, London., 6.
https://doi.org/10.1038/ncomms8730

Guo F, Li N, Fecher FW, Gasparini N, Quiroz COR, Bronnbauer C, Hou Y, Radmilović V, Radmilović VR, Spiecker E, Forberich K, Brabec CJ. A generic concept to overcome bandgap limitations for designing highly efficient multi-junction photovoltaic cells. in Nature Communications. 2015;6.
doi:10.1038/ncomms8730 .

Guo, Fei, Li, Ning, Fecher, Frank W., Gasparini, Nicola, Quiroz, Cesar Omar Ramirez, Bronnbauer, Carina, Hou, Yi, Radmilović, Vuk, Radmilović, Velimir R., Spiecker, Erdmann, Forberich, Karen, Brabec, Christoph J., "A generic concept to overcome bandgap limitations for designing highly efficient multi-junction photovoltaic cells" in Nature Communications, 6 (2015),
https://doi.org/10.1038/ncomms8730 . .