TY - JOUR
T1 - Charge Carrier Extraction in Organic Solar Cells Governed by Steady-State Mobilities
AU - Le Corre, Vincent M.
AU - Chatri, Azadeh Rahimi
AU - Doumon, Nutifafa Y.
AU - Koster, L. Jan Anton
N1 - Publisher Copyright:
© 2017 The Authors. Published by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
PY - 2017/11/22
Y1 - 2017/11/22
N2 - Charge transport in organic photovoltaic (OPV) devices is often characterized by steady-state mobilities. However, the suitability of steady-state mobilities to describe charge transport has recently been called into question, and it has been argued that dispersion plays a significant role. In this paper, the importance of the dispersion of charge carrier motion on the performance of organic photovoltaic devices is investigated. An experiment to measure the charge extraction time under realistic operating conditions is set up. This experiment is applied to different blends and shows that extraction time is directly related to the geometrical average of the steady-state mobilities. This demonstrates that under realistic operating conditions the steady-state mobilities govern the charge extraction of OPV and gives a valuable insight in device performance.
AB - Charge transport in organic photovoltaic (OPV) devices is often characterized by steady-state mobilities. However, the suitability of steady-state mobilities to describe charge transport has recently been called into question, and it has been argued that dispersion plays a significant role. In this paper, the importance of the dispersion of charge carrier motion on the performance of organic photovoltaic devices is investigated. An experiment to measure the charge extraction time under realistic operating conditions is set up. This experiment is applied to different blends and shows that extraction time is directly related to the geometrical average of the steady-state mobilities. This demonstrates that under realistic operating conditions the steady-state mobilities govern the charge extraction of OPV and gives a valuable insight in device performance.
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U2 - 10.1002/aenm.201701138
DO - 10.1002/aenm.201701138
M3 - Article
AN - SCOPUS:85029052660
SN - 1614-6832
VL - 7
JO - Advanced Energy Materials
JF - Advanced Energy Materials
IS - 22
M1 - 1701138
ER -