Switching Off Hysteresis in Perovskite Solar Cells by Fine-tuning Energy Levels of Extraction Layers

Journal article


Publication Details

Author(s): Guerrero A, Bou A, Almora Rodriguez O, Heumüller T, Garcia-Belmonte G, Bisquert J, Hou Y, Brabec C
Journal: Advanced Energy Materials
Publication year: 2018
Volume: 8
Journal issue: 21
ISSN: 1614-6832
eISSN: 1614-6840


Abstract

Lead halides perovskites often suffer from severe hysteretic behavior on their J-V response in photovoltaic devices. The electron extraction layer has frequently been pointed to as the main culprit for the observed hysteretic behavior. The hysteretic behavior is markedly different. Hereby, the HOMO level of the extraction layer and the valence band of the perovskite, not only suppresses the hysteresis, avoiding charge accumulation at the interface, but also degradation of the hole transport layer is reduced. Numerical simulation suggests that formation of an injection barrier at the organic / perovskite heterointerface could be one mechanism causing hysteresis. New rules for interface materials. Overall, this work highlights hysteresis-free perovskite devices.


FAU Authors / FAU Editors

Almora Rodriguez, Osbel
Institute Materials for Electronics and Energy Technology (i-MEET)
Brabec, Christoph Prof. Dr.
Institute Materials for Electronics and Energy Technology (i-MEET)
Heumüller, Thomas Dr.-Ing.
Institute Materials for Electronics and Energy Technology (i-MEET)
Hou, Yi
Institute Materials for Electronics and Energy Technology (i-MEET)


External institutions
Universitat Jaume I (UJI)


How to cite

APA:
Guerrero, A., Bou, A., Almora Rodriguez, O., Heumüller, T., Garcia-Belmonte, G., Bisquert, J.,... Brabec, C. (2018). Switching Off Hysteresis in Perovskite Solar Cells by Fine-tuning Energy Levels of Extraction Layers. Advanced Energy Materials, 8(21). https://dx.doi.org/10.1002/aenm.201703376

MLA:
Guerrero, Antonio, et al. "Switching Off Hysteresis in Perovskite Solar Cells by Fine-tuning Energy Levels of Extraction Layers." Advanced Energy Materials 8.21 (2018).

BibTeX: 

Last updated on 2019-11-03 at 11:20