Ultrafast Dynamics Group
Frédéric Laquai's Group

Publications

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Total result(s) found: 22
  • Fan Yang, Deping Qian, Ahmed Hesham Balawi, Yang Wu, Wei Ma, Fre´de´ric Laquai,* Zheng Tang,* Fengling Zhang* and Weiwei Li
    DOI: 10.1039/c7cp04780k
    rsc.li/pccp
Keywords:
Voltage losses, Quantum Efficiency Losses, Thin Film Morphology
  • Esma UgurArif D. SheikhRahim MunirJafar I. KhanDounya BarritAram Amassian* , and Frédéric Laquai*
    King Abdullah University of Science and Technology (KAUST), KAUST Solar Center (KSC), Physical Sciences and Engineering Division (PSE), Material Science and Engineering Program (MSE), Thuwal 23955-6900, Kingdom of Saudi Arabia
    ACS Energy Lett.20172, pp 1960–1968
    DOI: 10.1021/acsenergylett.7b00526
    Publication Date (Web): July 31, 2017
    Copyright © 2017 American Chemical Society
Keywords:
Perovskite, Glycol Ether Additives, two-step proccess
Keywords:
Lead-Halide, Perovskite, Hot carriers
  • Mikhail A. Filatov, Safakath Karuthedath, Pavel M. Polestshuk, Huguette Savoie, Keith J. Flanagan, Cindy Sy, Elisabeth Sitte, Maxime Telitchko, Frédéric Laquai, Ross W. Boyle, and Mathias O. Senge

    J. Am. Chem. Soc.
    DOI: 10.1021/jacs.7b00551
Keywords:
Triplet Excited States, Photoinduced Electron Transfer
  • Liyang Yu, Muhammad R. Niazi, Guy O. Ngongang Ndjawa, Ruipeng Li, Ahmad R. Kirmani, Rahim Munir, Ahmed H. Balawi, Frédéric Laquai and Aram Amassian

    Science Advances  03 Mar 2017:
    Vol. 3, no. 3, e1602462
    DOI: 10.1126/sciadv.1602462

Keywords:
crystallizationpolycrystalline thin filmsamorphous thin filmssmall-molecule organic semiconductorsOrganic Electronicsorganic thin film transistorshomogeneous nucleationpatterningclassical nucleation theorynucleation and growth
Keywords:
Quantum Dots, Solar Cells, Bandtail,
Keywords:
Electron-transporting layers, ETM, organohalide, perovskite, solar cells, hydrophobic, cross-linked, Photothermal Deflection Spectroscopy, PDS
Keywords:
Solution-processed OPV, non-fullerene acceptor, fullerene-free P3HT
Keywords:
donor–acceptor–donor, naphthalene-diimide, J-aggregation
Keywords:
nonporous triazine, solid state synthetic
Keywords:
perovskite, photovoltaic devices, piezoresponse force microscopy
Keywords:
MEH–PPV, nanocomposites
Keywords:
Small Molecule, Acceptors, OPV
  • Photo-generated carriers lose energy during extraction from polymer-fullerene solar cells
    Armantas Melianas, Fabian Etzold, Tom J. Savenije, Frédéric Laquai, Olle Inganäs, Martijn Kemerink
    Nature Communications
     
    Article number:
     
    8778
    doi:10.1038/ncomms9778
Keywords:
Photo-generated Charges, Thermal Equilibrium, Thermalization, time-resolved optical spectroscopy
  • Triplet state formation in photovoltaic blends of DPP-type copolymers and PC71BM

    Ochsmann JR, Chandran D, Gehrig DW, Anwar H, Madathil PK, Lee KS, Frédéric Laquai 

    Macromol Rapid Commun. 2015 Jun;36(11):1122-8.

    DOI: 10.1002/marc.201400714​

Keywords:
DPP Polymers, Charge Generation, Organic Photovoltaics, Transient Absorption Spectroscopy, Triplet State Formation
  • The Impact of Donor–Acceptor Phase Separation on the Charge Carrier Dynamics in pBTTT:PCBM Photovoltaic Blends

    Dominik W. Gehrig, Ian A. Howard, Sean Sweetnam, Timothy M. Burke,Michael D. McGehee, Frédéric Laquai

    Macromol. Rapid Commun. 2015, 36, 1054−1060

    DOI: 10.1002/marc.201500112​ 

Keywords:
Carrier Dynamics, pBTTT, Phase Separation, Polymer Solar Cells, Transient Absorption Spectroscopy
  • ​Sub-ns triplet state formation by non-geminate recombination in PSBTBT:PC70BM and PCPDTBT:PC BM organic solar cells

    Fabian Etzold, Ian A. Howard, Nina Forler, Anton Melnyk, Denis Andrienko, Michael Ryan Hansen and Frédéric Laquai

    Energy Environ. Sci., 2015,8, 1511-152

    DOI: 10.1039/C4EE03630A​​

Keywords:
Solid-State Morphology, Charge Carrier Dynamics, Multivariate Curve Resolution, Transient Absorption Spectroscopy
  • Interplay Between Side Chain Pattern, Polymer Aggregation, and Charge Carrier Dynamics in PBDTTPD:PCBM Bulk-Heterojunction Solar Cells
    Clare Dyer-Smith, Ian A. Howard, Clément Cabanetos, Abdulrahman El Labban, Pierre M. Beaujuge, and Frédéric Laquai
    Advanced Energy Materials, Volume 5, Issue 9, (2015)
    DOI 10.1002/aenm.201401778
Keywords:
Charge Generation, PBDTTPD, Polymer Solar Cells, Structure–Property Relationships, Transient Absorption Spectroscopy
  • High open-circuit voltage small-molecule p-DTS(FBTTh2)2:ICBA bulk heterojunction solar cells – morphology, excited-state dynamics, and photovoltaic performance

    ​​Aung Ko Ko Kyaw, Dominik Gehrig, Jie Zhang, Ye Huang, Guillermo C. Bazan, Frédéric Laquai and Thuc-Quyen Nguyen

    J. Mater. Chem. A, 2015,3, 1530-1539

Keywords:
Bulk Heterojunction, Solar Cells, Solution-Processable Small Molecule Donor, Transient Absorption Spectroscopy
  • Efficiency-Limiting Processes in Low-Bandgap Polymer:Perylene Diimide Photovoltaic Blends
    Dominik W. Gehrig, Steffen Roland, Ian A. Howard, Valentin Kamm, Hannah Mangold, Dieter Neher, and Frédéric Laquai
    J. Phys. Chem. C2014118 (35), pp 20077–20085
    DOI: 10.1021/jp503366m
Keywords:
Perylene Diimide, Charge Generation, Charge Recombination, Transient Absorption Spectroscopy
  • Control of charge generation and recombination in ternary polymer/polymer:fullerene photovoltaic blends using amorphous and semi-crystalline copolymers as donors

    Hannah Mangold, Artem A. Bakulin, Ian A. Howard, Christian Kästner, Daniel A. M. Egbe, Harald Hoppe and Frédéric Laquai

    Phys. Chem. Chem. Phys., 2014,16, 20329-20337

    DOI: 10.1039/C4CP01883D

Keywords:
Charge Generation, Charge Recombination, Charge-Transfer States, Geminate Recombination, Non-Geminate Recombination
  • The Effect of Solvent Additive on the Charge Generation and Photovoltaic Performance of a Solution-Processed Small Molecule: Perylene Diimide Bulk Heterojunction Solar Cell
    Alexander Sharenko, Dominik Gehrig, Frédéric Laquai and Thuc-Quyen Nguyen
    Chem. Mater., 2014, 26 (14), pp 4109–4118
    DOI: 10.1021/cm5010483
Keywords:
Small Molecule Donor, Perylene Diimide (PDI) Electron Acceptor, Organic Photovoltaic, Solvent Additives