UM
Exploring the Limiting Open-Circuit Voltage and the Voltage Loss Mechanism in Planar CH 3 NH 3 PbBr 3 Perovskite Solar Cells
Chen S.1; Hou Y.1; Chen H.1; Richter M.1; Guo F.1; Kahmann S.1; Tang X.1; Stubhan T.1; Zhang H.1; Li N.1; Gasparini N.1; Quiroz C.O.R.1; Khanzada L.S.1; Matt G.J.1; Osvet A.1; Brabec C.J.1
2016-09-21
Source PublicationAdvanced Energy Materials
ISSN16146840 16146832
Volume6Issue:18
AbstractPerovskite solar cells based on CH NH PbBr with a band gap of 2.3 eV are attracting intense research interests due to their high open-circuit voltage (V ) potential, which is specifically relevant for the use in tandem configuration or spectral splitting. Many efforts have been performed to optimize the V of CH NH PbBr solar cells; however, the limiting V (namely, radiative V :V ) and the corresponding ΔV (the difference between V and V ) mechanism are still unknown. Here, the average V of 1.50 V with the maximum value of 1.53 V at room temperature is achieved for a CH NH PbBr solar cell. External quantum efficiency measurements with electroluminescence spectroscopy determine the V of CH NH PbBr cells with 1.95 V and a ΔV of 0.45 V at 295 K. When the temperature declines from 295 to 200 K, the obtained V remains comparably stable in the vicinity of 1.5 V while the corresponding ΔV values show a more significant increase. Our findings suggest that the V of CH NH PbBr cells is primarily limited by the interface losses induced by the charge extraction layer rather than by bulk dominated recombination losses. These findings are important for developing strategies how to further enhance the V of CH NH PbBr -based solar cells.
KeywordCH 3 NH 3 PbBr 3 solar cells interface materials based losses nonradiative recombination losses open-circuit voltage
DOI10.1002/aenm.201600132
URLView the original
Language英語
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Cited Times [WOS]:3   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Affiliation1.Friedrich-Alexander-Universität Erlangen-Nürnberg
2.Das Bayerische Zentrum für Angewandte Energieforschung e.V.
3.University of Groningen
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GB/T 7714
Chen S.,Hou Y.,Chen H.,et al. Exploring the Limiting Open-Circuit Voltage and the Voltage Loss Mechanism in Planar CH 3 NH 3 PbBr 3 Perovskite Solar Cells[J]. Advanced Energy Materials,2016,6(18).
APA Chen S..,Hou Y..,Chen H..,Richter M..,Guo F..,...&Brabec C.J..(2016).Exploring the Limiting Open-Circuit Voltage and the Voltage Loss Mechanism in Planar CH 3 NH 3 PbBr 3 Perovskite Solar Cells.Advanced Energy Materials,6(18).
MLA Chen S.,et al."Exploring the Limiting Open-Circuit Voltage and the Voltage Loss Mechanism in Planar CH 3 NH 3 PbBr 3 Perovskite Solar Cells".Advanced Energy Materials 6.18(2016).
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