TY - JOUR
T1 - Spectral Response Measurements of Perovskite Solar Cells
AU - Bliss, M.
AU - Smith, A.
AU - Betts, T.R.
AU - Baker, J.
AU - De Rossi, Francesca
AU - Bai, S.
AU - Watson, T.
AU - Snaith, H.
AU - Gottschalg, R.
PY - 2018/11/14
Y1 - 2018/11/14
N2 - A new spectral response (SR) measurement routine is proposed that is universally applicable for all perovskite devices. It is aimed at improving measurement accuracy and repeatability of SR curves and current-voltage curve spectral mismatch factor (MMF) corrections. Frequency response, effects of preconditioning as well as dependency on incident light intensity and voltage load on SR measurements are characterized on two differently structured perovskite device types. It is shown that device preconditioning affects the SR shape, causing errors in spectral MMF corrections of up to 0.8% when using a reference cell with a good spectral match and a class A solar simulator. Wavelength dependent response to incident light intensity and voltage load is observed on both device types, which highlights the need to measure at short-circuit current and maximum power point to correct spectral mismatch. The method with recommendations given ensures that the correct measurement conditions are applied and measurements are corrected for instability in performance.
AB - A new spectral response (SR) measurement routine is proposed that is universally applicable for all perovskite devices. It is aimed at improving measurement accuracy and repeatability of SR curves and current-voltage curve spectral mismatch factor (MMF) corrections. Frequency response, effects of preconditioning as well as dependency on incident light intensity and voltage load on SR measurements are characterized on two differently structured perovskite device types. It is shown that device preconditioning affects the SR shape, causing errors in spectral MMF corrections of up to 0.8% when using a reference cell with a good spectral match and a class A solar simulator. Wavelength dependent response to incident light intensity and voltage load is observed on both device types, which highlights the need to measure at short-circuit current and maximum power point to correct spectral mismatch. The method with recommendations given ensures that the correct measurement conditions are applied and measurements are corrected for instability in performance.
UR - http://www.scopus.com/inward/record.url?eid=2-s2.0-85056569208&partnerID=MN8TOARS
U2 - 10.1109/JPHOTOV.2018.2878003
DO - 10.1109/JPHOTOV.2018.2878003
M3 - Article
SN - 2156-3403
VL - 9
SP - 220
EP - 226
JO - IEEE Journal of Photovoltaics
JF - IEEE Journal of Photovoltaics
IS - 1
ER -