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@article{Wheeler and Deledalle:2015:10.1103/PhysRevApplied.4.024020,
author = {Wheeler and Deledalle, F and Tokmoldin, N and Kirchartz, T and Nelson, J and Durrant, J},
doi = {10.1103/PhysRevApplied.4.024020},
journal = {Physical review applied},
title = {Influence of Surface Recombination on Charge-Carrier Kinetics in Organic Bulk Heterojunction Solar Cells with Nickel Oxide Interlayers},
url = {http://dx.doi.org/10.1103/PhysRevApplied.4.024020},
volume = {4},
year = {2015}
}
TY - JOUR
AB - The choice of electrode for organic photovoltaics is known to be of importance to both device stability and performance, especially regarding the open-circuit voltage (VOC). Here we show that the work function of a nickel oxide anode, varied using an O2 plasma treatment, has a considerable influence on the open-circuit voltage VOC of an organic solar cell. We probe recombination in the devices using transient photovoltage and charge extraction to determine the lifetime as a function of charge-carrier concentration and compare the experimental results with numerical drift-diffusion simulations. This combination of experiment and simulations allows us to conclude that the variations in VOC are due to a change in surface recombination, localized at the NiO anode, although only a small change in carrier lifetime is observed.
AU - Wheeler
AU - Deledalle,F
AU - Tokmoldin,N
AU - Kirchartz,T
AU - Nelson,J
AU - Durrant,J
DO - 10.1103/PhysRevApplied.4.024020
PY - 2015///
SN - 2331-7019
TI - Influence of Surface Recombination on Charge-Carrier Kinetics in Organic Bulk Heterojunction Solar Cells with Nickel Oxide Interlayers
T2 - Physical review applied
UR - http://dx.doi.org/10.1103/PhysRevApplied.4.024020
UR - http://hdl.handle.net/10044/1/26019
VL - 4
ER -
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