TY - GEN
T1 - Influence of organic active layer morphology on plasmonic light-trapping
AU - O'Carroll, Deirdre M.
AU - Petoukhoff, Christopher E.
N1 - Funding Information:
This work was supported through funding provided National Science Foundation (NSF) Grant DMR-1309459.
PY - 2017
Y1 - 2017
N2 - Here, we show that the morphology of organic bulk-heterojuction (BJH) thin films strongly influences whether plasmonic modes supported by an electrode are absorbed or outcoupled (leaked) from the organic thin films. Using optical dark-field scattering, full-field electromagnetic modelling and grazing-incidence, wide-angle X-ray scattering, we find that more crystalline organic active layers, such as P3HT:PCBM trap surface plasmons while more amorphous organic thin films such as PTB7:PC 70 BM and PCDTBT:PC 70 BM facilitate leakage of surface plasmon polaritons. This is an important finding because it indicates that plasmonic light trapping can be improved in thin-film organic active layers using more crystalline active layers.
AB - Here, we show that the morphology of organic bulk-heterojuction (BJH) thin films strongly influences whether plasmonic modes supported by an electrode are absorbed or outcoupled (leaked) from the organic thin films. Using optical dark-field scattering, full-field electromagnetic modelling and grazing-incidence, wide-angle X-ray scattering, we find that more crystalline organic active layers, such as P3HT:PCBM trap surface plasmons while more amorphous organic thin films such as PTB7:PC 70 BM and PCDTBT:PC 70 BM facilitate leakage of surface plasmon polaritons. This is an important finding because it indicates that plasmonic light trapping can be improved in thin-film organic active layers using more crystalline active layers.
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U2 - 10.1109/PVSC.2017.8366198
DO - 10.1109/PVSC.2017.8366198
M3 - Conference contribution
AN - SCOPUS:85048482834
T3 - 2017 IEEE 44th Photovoltaic Specialist Conference, PVSC 2017
SP - 1
EP - 3
BT - 2017 IEEE 44th Photovoltaic Specialist Conference, PVSC 2017
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 44th IEEE Photovoltaic Specialist Conference, PVSC 2017
Y2 - 25 June 2017 through 30 June 2017
ER -