Exploring the Limiting Open-Circuit Voltage and the Voltage Loss Mechanism in Planar CH3NH3PbBr3 Perovskite Solar Cells

Journal article
(Original article)


Publication Details

Author(s): Chen S, Hou Y, Chen H, Richter M, Guo F, Kahmann S, Tang X, Stubhan T, Zhang H, Li N, Gasparini N, Ramírez Quiroz CO, Khanzada LS, Matt G, Osvet A, Brabec C
Journal: Advanced Energy Materials
Publication year: 2016
Volume: 6
Journal issue: 18
ISSN: 1614-6832
eISSN: 1614-6840
Language: English


Abstract


Perovskite solar cells based on CHNHPbBr 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 CHNHPbBr 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 CHNHPbBr solar cell. External quantum efficiency measurements with electroluminescence spectroscopy determine the V of CHNHPbBr 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 CHNHPbBr 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 CHNHPbBr-based solar cells.



FAU Authors / FAU Editors

Brabec, Christoph Prof. Dr.
Institute Materials for Electronics and Energy Technology (i-MEET)
Chen, Haiwei
Institute Materials for Electronics and Energy Technology (i-MEET)
Chen, Shi
Institute Materials for Electronics and Energy Technology (i-MEET)
Gasparini, Nicola
Institute Materials for Electronics and Energy Technology (i-MEET)
Guo, Fei
Institute Materials for Electronics and Energy Technology (i-MEET)
Hou, Yi
Institute Materials for Electronics and Energy Technology (i-MEET)
Kahmann, Simon
Institute Materials for Electronics and Energy Technology (i-MEET)
Khanzada, Laraib Sarfraz
Institute Materials for Electronics and Energy Technology (i-MEET)
Li, Ning Dr.-Ing.
Institute Materials for Electronics and Energy Technology (i-MEET)
Matt, Gebhard Dr.
Institute Materials for Electronics and Energy Technology (i-MEET)
Osvet, Andres Dr.
Institute Materials for Electronics and Energy Technology (i-MEET)
Ramírez Quiroz, César Omar
Institute Materials for Electronics and Energy Technology (i-MEET)
Richter, Moses
Institute Materials for Electronics and Energy Technology (i-MEET)
Stubhan, Tobias Dr.-Ing.
Institute Materials for Electronics and Energy Technology (i-MEET)
Tang, Xiaofeng
Institute Materials for Electronics and Energy Technology (i-MEET)
Zhang, Hong
Institute Materials for Electronics and Energy Technology (i-MEET)


Additional Organisation
Erlangen Graduate School in Advanced Optical Technologies
Graduiertenkolleg 1896/2 In situ Mikroskopie mit Elektronen, Röntgenstrahlen und Rastersonden
Exzellenz-Cluster Engineering of Advanced Materials
Interdisziplinäres Zentrum, Center for Nanoanalysis and Electron Microscopy (CENEM)


Research Fields

B Nanoelectronic Materials
Exzellenz-Cluster Engineering of Advanced Materials


How to cite

APA:
Chen, S., Hou, Y., Chen, H., Richter, M., Guo, F., Kahmann, S.,... Brabec, C. (2016). Exploring the Limiting Open-Circuit Voltage and the Voltage Loss Mechanism in Planar CH3NH3PbBr3 Perovskite Solar Cells. Advanced Energy Materials, 6(18). https://dx.doi.org/10.1002/aenm.201600132

MLA:
Chen, Shi, et al. "Exploring the Limiting Open-Circuit Voltage and the Voltage Loss Mechanism in Planar CH3NH3PbBr3 Perovskite Solar Cells." Advanced Energy Materials 6.18 (2016).

BibTeX: 

Last updated on 2019-11-07 at 09:19