Ultrafast Dynamics Group
Frédéric Laquai's Group

Publications

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Total result(s) found: 19
Keywords:
nonfullerene acceptors, organic photovoltaics, small molecule, solvent vapor annealing, ternary solar cells
  • ​​Charge Photogeneration and Recombination inMesostructured CuSCN-Nanowire/PC70BM Solar
    Y. Firdaus, A. Seitkhan, F. Eisner, W.‐Y. Sit, Z. Kan, N. Wehbe, A. H Balawi, E. Yengel, S. Karuthedath, F. Laquai, T. D Anthopoulos
    Solar RRL​, 2018, 1800095
Keywords:
charge photogeneration, charge recombination, copper (I) thiocyanate, PCBM, solar cells
  • Organic solar cells based on anthracene‑containing PPE–PPVs and non‑fullerene acceptors

    S. Alam, R. Meitzner, O. V. Nwadiaru,  C. Friebe, J. Cann, J. Ahner, C. Ulbricht, Z. Kan, S. Höppener, M. D. Hager, D. A. M. Egbe, G. C. Welch, F. Laquai, U. S. Schubert, H. Hoppe.
    Chemical Papers (2018) 72:1769–1778

Keywords:
Non-fullerene acceptors (NFA) · Bulk-heterojunction (BHJ) · Organic solar cell (OSC)
  • Impact of Structural Polymorphs on Charge Collection and Non-Geminate Recombination in Organic Photovoltaic Devices

    P. E. Keivanidis, J. I. Khan, L. Katzenmeier, Z. Kan, S. Limbu, M. K. Constantinou, E. Lariou, G. Constantinides, S. C. Hayes, J.–S. Kim, and F. Laquai

    J. Phys. Chem. C,

    DOI: 10.1021/acs.jpcc.8b09825

Keywords:
organic photovoltaic, poly(3-hexyl-thiophene), (P3HT)
  • Charge and Triplet Exciton Generation in Neat PC70BM Films and Hybrid CuSCN:PC70BM Solar Cells


    S. Karuthedath, J.  Gorenflot, Y. Firdaus, W‐Y. Sit, F. Eisner, A.Seitkhan, M.K. Ravva, T.D. Anthopoulos, F. Laquai

    Adv. Energy Mater. 2018, DOI: 10.1002/aenm.201802476

    ​​​
Keywords:
copper thiocyanate, fullerene, hybrid solar cells, transient absorption spectroscopy, triplet exciton
  • ​Room-Temperature Sputtered Nanocrystalline Nickel Oxide as Hole Transport Layer for p−i−n Perovskite Solar Cells

    Erkan Aydin, Joel Troughton, Michele De Bastiani, Esma Ugur, Muhammad Sajjad, Areej Alzahrani, Marios Neophytou, Udo Schwingenschlögl, Frédéric Laquai, Derya Baran, and Stefaan De Wolf

    ACS Appl. Energy Mater., DOI: 10.1021/acsaem.8b01263​​


Keywords:
perovskites solar cells, room-temperature processing, sputtering, nickel oxide, conformal deposition, large area, p-i-n perovskite device configuration
  • A Universal Double-Side Passivation for High Open-Circuit Voltage in Perovskite Solar Cells: Role of Carbonyl Groups in Poly(methyl methacrylate)


    Jun Peng, Jafar I. Khan,  Wenzhu Liu,  Esma Ugur,  The Duong,  Yiliang Wu,  Heping Shen,  Kai Wang, Hoang Dang,  Erkan Aydin,  Xinbo Yang,  Yimao Wan,  Klaus J. Weber,  Kylie R. Catchpole,  Frédéric Laquai, Stefaan De Wolf,  Thomas P. White​


    Adv. Energy Mater. 2018, 1801208​


    DOI: 10.1002/aenm.201801208

    ​​

Keywords:
carbonyl group, nonradiative recombination, passivation, perovskite solar cells, undercoordinated Pb atoms
Keywords:
non‐fullerene acceptors, organic photovoltaics, polymer solar cells, small molecular acceptors, wide‐bandgap acceptors
  • Progress in Poly (3‐Hexylthiophene) Organic Solar Cells and the Influence of Its Molecular Weight on Device Performance​


    A. Wadsworth, Z. Hamid, M. Bidwell, R. S. Ashraf, J. I. Khan, D. H. Anjum, C. Cendra, J. Yan, E. Rezasoltani, A. A. Y. Guilbert, M. Azzouzi, N. Gasparini, J. H. Bannock, D. Baran, H. Wu, J. C. de Mello, C. J. Brabec, A.  Salleo, J. Nelson, F. Laquai, I. McCulloch

    Adv. Energy Mater.


    DOI: 10.1002/aenm.201801001​​

    ​​
Keywords:
IDTBR, molecular weight, nonfullerene, organic photovoltaics, poly (3‐hexylthiophene)
  • BODIPY-pyrene and perylene dyads as heavy atom-free singlet oxygen sensitizers​

    M.A. Filatov, S. Karuthedath, P.M. Polestshuk, S. Callaghan, T. Wiesner, K.J. Flanagan, F. Laquai and M.O. Senge
    ChemPhotoChem 2018,
    DOI: 10.1002/cptc.201800020
Keywords:
charge transfer, heavy-atom-free sensitizer, photo- induced electron transfer, singlet oxygen, triplet excited state
  • ​Efficient Long - Range Electron Transfer Processes in Polyfluorene – Perylene Diimide Blends


    A. Isakova, S. Karuthedath, T. Arnold, J. Howse, P. D. Topham, D. T. W. Toolan, F. Laquai and L. Lüer,

    Nanoscale, 2018, Accepted Manuscript​, 

    DOI: 10.1039/C8NR01064A.

     ​

Keywords:
perylene diimide (PDI), polyfluorene (PFO)
  • Triphenylamine-Based Push–Pull σ–C60 Dyad As Photoactive Molecular Material for Single-Component Organic Solar Cells: Synthesis, Characterizations, and Photophysical Properties.
    A. Labrunie, J. Gorenflot, M. Babics, O. Alévêque, S. Dabos-Seignon, A. H. Balawi, Z. Kan, M. Wohlfahrt, E. Levillain, P. Hudhomme, P. M. Beaujuge, F. Laquai, C. Cabanetos, and P. Blanchard.
    Chemistry of Materials Article ASAP, 2018,
    DOI: 10.1021/acs.chemmater.8b01117

Keywords:
TPA-T-DCV, TPA-T-MCA, TPA-T-C60 Dyad.
  • Mixed Domains Enhance Charge Generation and Extraction in Bulk‐Heterojunction Solar Cells with Small‐Molecule Donors.
    O. Alqahtani, M. Babics, J. Gorenflot, V. Savikhin, T. Ferron, A.H. Balawi, A. Paulke, Z. Kan, M. Pope, A.J. Clulow, J. Wolf, P.L. Burn, I.R. Gentle, D. Neher, M.F. Toney, F. Laquai, P.M. Beaujuge, B.A. Collins

    Adv. Energy Mater. 2018, 1702941 DOI:10.1002/aenm.201702941

     ​
Keywords:
Charge transport, domain purity, microscopy, mixed domains, organic solar cells, photovoltaic devices, resonant X-ray scattering, small molecules, transient spectroscopy
  • Thermal Annealing Reduces Geminate Recombination in TQ1:N2200 All-Polymer Solar Cells​

    S. Karuthedath, A. Melianas, Z. Kan, V. Pranculis, M. Wohlfahrt, J.I. Khan, J. Gorenflot, Y. Xia, O. Inganäs, V. Gulbinas, M. Kemerink, and F. Laquai
    Journal of Materials Chemistry A, 2018.
    DOI: 10.1039/c8ta01692e​
Keywords:
TQ1:N2200, Polymer Solar Cells
Keywords:
CDTBM, IDTTBM, BHJ solar cells
  • Control of triplet state generation in heavy atom-free BODIPY-anthracene dyads by media polarity and structural factors

    M.A. Filatov, S. Karuthedath, P.M. Polestshuk, S. Callaghan, K.J. Flanagan, M. Telitchko, T. Wiesner, F. Laquai, M.O. Senge, 
    Phys. Chem. Chem. Phys. 2018
    DOI: 10.1039/C7CP08472B
Keywords:
Boron dipyrromethene (BODIPY) dyes, Ultrafast pump-probe spectroscopy
  • High efficiency PCBM solar cells enabled by a spontaneously formed mesostructured CuSCN-nanowire heterointerface

    W.-Y. Sit, F. Eisner, Y.-H. Lin, Y. Firdaus, A. Seitkhan, A. Balawi, F. Laquai, C. Burgess, M.A. McLachlan, G. Volonakis, F. Giustino, and T.D. Anthopoulos
    Adv. Sci. 2018, 10.1002/advs.201700980
Keywords:
copper (I) thiocyanate, fullerenes, mesostructured heterointerfaces, PCBM, solar cells
  • From Recombination Dynamics to Device Performance: Quantifying the Efficiency of Exciton Dissociation, Charge Separation, and Extraction in Bulk Heterojunction Solar Cells with Fluorine-Substituted Polymer Donors

    J. Gorenflot, A. Paulke, F. Piersimoni, J. Wolf, Z. Kan, F. Cruciani, A. El Labban, D. Neher, P.M. Beaujuge, F. Laquai.
    Adv. Energy Mater. 2018, DOI: 10.1002/ aenm.201701678

Keywords:
bulk heterojunction, charge generation yield, charge recombination yield, polymer solar cells, transient absorption spectroscopy
  • Efficiency-limiting Processes in Cyclopentadithiophene-bridged Donor-Acceptor-type Dyes for Solid-State Dye-sensitized Solar Cells

    F. Hinkel, Y. Kim, Y. Zagraniarsky, F. Schlütter, D. Andrienko, K. Müllen, F. Laquai
    J. Chem. Phys.148, 044703, 2018. 
    ​​​​​
Keywords:
Solar cells, Photochemistry, Photoconductivity, Chemical, compounds, Spectroscopy