Current-voltage analysis : Lessons learned from hysteresis
(2019) p.81-108- Abstract
Progress in the power conversion efficiency of solar cells based on metal-halide perovskite semiconductors has been astonishing for the past years. During their development, transient effects have been observed that gave rise to an uncertainty associated with the determination of device performance from current density-voltage (J-V) measurements. This effect becomes visible in a dependence of the J-V curve on scan rate and direction, causing a J-V hysteresis due to the discrepancy between forward and reverse scan.) This hysteresis has caused debates in the research community and triggered efforts to establish reliable measurement protocols. A major difficulty is that the J-V hysteresis as a function of measurement conditions can be... (More)
Progress in the power conversion efficiency of solar cells based on metal-halide perovskite semiconductors has been astonishing for the past years. During their development, transient effects have been observed that gave rise to an uncertainty associated with the determination of device performance from current density-voltage (J-V) measurements. This effect becomes visible in a dependence of the J-V curve on scan rate and direction, causing a J-V hysteresis due to the discrepancy between forward and reverse scan.) This hysteresis has caused debates in the research community and triggered efforts to establish reliable measurement protocols. A major difficulty is that the J-V hysteresis as a function of measurement conditions can be quite specific for the device architecture and conditions the device was subjected to prior to the measurement. In this chapter, we describe hysteresis in perovskite solar cells phenomenologically and summarize the current understanding of underlying causes. We emphasize insight that can be gained from the quantitative analysis of the magnitude of hysteresis and time scales of transient phenomena. In this context, we discuss the value and limitation of hysteresis indices as quantitative metrics in the analysis of hysteresis. We summarize how device architecture, contact layers and composition of the metal-halide perovskite absorber layer affect the magnitude of transient phenomena. In the meantime, uncertainties related to the determination of the power-conversion efficiency have been practically solved by tracking the power output. However, gaining insight into the underlying physical causes for hysteresis is crucial. This understanding will illuminate the intrinsic properties of MHP semiconductors and allow the evaluation of their technological potential also regarding long-term stability.
(Less)
- author
- Unger, Eva L. LU ; Czudek, Aniela ; Kim, Hui Seon and Tress, Wolfgang
- organization
- publishing date
- 2019
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- keywords
- Current-voltage measurements, Hysteresis, Metal-halide perovskite solar cells, Transient response
- host publication
- Characterization Techniques for Perovskite Solar Cell Materials
- pages
- 28 pages
- publisher
- Elsevier
- external identifiers
-
- scopus:85093494349
- ISBN
- 9780128147283
- 9780128147276
- DOI
- 10.1016/B978-0-12-814727-6.00004-9
- language
- English
- LU publication?
- yes
- id
- f0daf736-19ba-424d-b7fe-c7e87ebcc7b1
- date added to LUP
- 2020-11-12 14:40:14
- date last changed
- 2024-06-28 04:38:46
@inbook{f0daf736-19ba-424d-b7fe-c7e87ebcc7b1,
abstract = {{<p>Progress in the power conversion efficiency of solar cells based on metal-halide perovskite semiconductors has been astonishing for the past years. During their development, transient effects have been observed that gave rise to an uncertainty associated with the determination of device performance from current density-voltage (J-V) measurements. This effect becomes visible in a dependence of the J-V curve on scan rate and direction, causing a J-V hysteresis due to the discrepancy between forward and reverse scan.) This hysteresis has caused debates in the research community and triggered efforts to establish reliable measurement protocols. A major difficulty is that the J-V hysteresis as a function of measurement conditions can be quite specific for the device architecture and conditions the device was subjected to prior to the measurement. In this chapter, we describe hysteresis in perovskite solar cells phenomenologically and summarize the current understanding of underlying causes. We emphasize insight that can be gained from the quantitative analysis of the magnitude of hysteresis and time scales of transient phenomena. In this context, we discuss the value and limitation of hysteresis indices as quantitative metrics in the analysis of hysteresis. We summarize how device architecture, contact layers and composition of the metal-halide perovskite absorber layer affect the magnitude of transient phenomena. In the meantime, uncertainties related to the determination of the power-conversion efficiency have been practically solved by tracking the power output. However, gaining insight into the underlying physical causes for hysteresis is crucial. This understanding will illuminate the intrinsic properties of MHP semiconductors and allow the evaluation of their technological potential also regarding long-term stability.</p>}},
author = {{Unger, Eva L. and Czudek, Aniela and Kim, Hui Seon and Tress, Wolfgang}},
booktitle = {{Characterization Techniques for Perovskite Solar Cell Materials}},
isbn = {{9780128147283}},
keywords = {{Current-voltage measurements; Hysteresis; Metal-halide perovskite solar cells; Transient response}},
language = {{eng}},
pages = {{81--108}},
publisher = {{Elsevier}},
title = {{Current-voltage analysis : Lessons learned from hysteresis}},
url = {{http://dx.doi.org/10.1016/B978-0-12-814727-6.00004-9}},
doi = {{10.1016/B978-0-12-814727-6.00004-9}},
year = {{2019}},
}