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Showing 1–9 of 9 results
Advanced filters: Author: Natalie Banerji Clear advanced filters

  • Charge generation and transport are crucial to the performance of organic solar cells, but the mechanism remains controversial. Causa’ et al. show that the phase morphology of polymer:fullerene blends determines the exciton dissociation at femtoseconds, although the spatial separation can occur at picoseconds.

    • Martina Causa'
    • Jelissa De Jonghe-Risse
    • Natalie Banerji
    ResearchOpen Access
    Nature Communications
    Volume: 7, P: 1-10

  • The use of a spectroscopy technique called pump–push–probe electro-absorption provides insight into the energetic landscape of nanostructured donor–acceptor interfaces in bulk-heterojunction organic solar cells.

    • Natalie Banerji
    News & Views
    Nature Materials
    Volume: 16, P: 503-505

  • The interconversion dynamics between charge transfer state charges and separated charges remains an unresolved issue. Here, the authors spectrally resolve those charges and report a kinetic model to reveal the charge generation, separation, and recombination mechanism in α6T:C60 systems.

    • Gareth John Moore
    • Florian Günther
    • Natalie Banerji
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-11

  • It has been commonly believed that the driving force at the donor-acceptor heterojunction is vital to efficient charge separation in organic solar cells. Here Zhong et al. show that the driving force can be as small as 0.05 eV without compromising the charge transfer rate and efficiency.

    • Yufei Zhong
    • Martina Causa’
    • Natalie Banerji
    ResearchOpen Access
    Nature Communications
    Volume: 11, P: 1-10

  • Voltage losses limit the performance of organic solar cells, yet their origins are not fully understood. Now, a theoretical model encompassing electronic state hybridization and thermal population of vibrational states explains the reduced non-radiative voltage losses in efficient non-fullerene acceptor systems.

    • Natalie Banerji
    News & Views
    Nature Energy
    Volume: 6, P: 775-776

  • Fullerene acceptors are relevant for upscaling industrial production of organic solar cells. Here, authors reveal that for donor-acceptor blends with low energetic offset, charge transfer state dissociation rather than charge transfer state formation presents a bottleneck for free charge generation.

    • Anna Jungbluth
    • Eunkyung Cho
    • Moritz Riede
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-11

  • The optimization of organic mixed ionic-electronic conductor is critical to realize high performance organic electrochemical transistors. Here, the authors demonstrate the removal of residual palladium impurities to be the key factor to achieving a figure-of-merit of [μC*] of over 2000 V−1 cm−1 s−1.

    • Sophie Griggs
    • Adam Marks
    • Iain McCulloch
    ResearchOpen Access
    Nature Communications
    Volume: 13, P: 1-11

  • Long operational stability is essential to commercialisation of organic solar cells. Here, the authors investigate the thermal degradation of inverted photovoltaic devices based on PM6:Y6 non-fullerene system to reveal that trap-induced transport resistance is primarily responsible for the drop in fill factor.

    • Christopher Wöpke
    • Clemens Göhler
    • Carsten Deibel
    ResearchOpen Access
    Nature Communications
    Volume: 13, P: 1-8