Universität zu Köln

Haddad, Jinane ORCID: 0000-0003-3747-0412, Krogmeier, Benedikt, Klingebiel, Benjamin, Krueckemeier, Lisa, Melhem, Stephanie, Liu, Zhifa, Huepkes, Juergen, Mathur, Sanjay and Kirchartz, Thomas (2020). Analyzing Interface Recombination in Lead-Halide Perovskite Solar Cells with Organic and Inorganic Hole-Transport Layers. Adv. Mater. Interfaces, 7 (16). HOBOKEN: WILEY. ISSN 2196-7350

Full text not available from this repository.

Abstract

The interfaces between absorber and transport layers are shown to be critical for perovskite device performance. However, quantitative characterization of interface recombination has so far proven to be highly challenging in working perovskite solar cells. Here, methylammonium lead halide (CH3NH3PbI3) perovskite solar cells are studied based on a range of different hole-transport layers, namely, an inorganic hole-transport layer CuOx, an organic hole-transport layer poly(triarylamine) (PTAA), and a bilayer of CuOx/PTAA. The cells are completed by a [6,6]-phenyl-C-61-butyric acid methyl ester (PCBM)/bathocuproine/Ag electron contact. Energy levels are characterized using photoelectron spectroscopy and recombination dynamics by combining steady-state photoluminescence and transient photoluminescence with numerical simulations. While the PTAA-based devices hardly show any interface recombination losses and open-circuit voltages >1.2 V, substantial losses are observed for the samples with a direct CuOx/perovskite interface. These losses are assigned to a combination of energetic misalignment at the CuOx/perovskite interface coupled with increased interface recombination velocities at the perovskite/PCBM interface.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Haddad, Jinane UNSPECIFIED orcid.org/0000-0003-3747-0412 UNSPECIFIED Krogmeier, Benedikt UNSPECIFIED UNSPECIFIED UNSPECIFIED Klingebiel, Benjamin UNSPECIFIED UNSPECIFIED UNSPECIFIED Krueckemeier, Lisa UNSPECIFIED UNSPECIFIED UNSPECIFIED Melhem, Stephanie UNSPECIFIED UNSPECIFIED UNSPECIFIED Liu, Zhifa UNSPECIFIED UNSPECIFIED UNSPECIFIED Huepkes, Juergen UNSPECIFIED UNSPECIFIED UNSPECIFIED Mathur, Sanjay UNSPECIFIED UNSPECIFIED UNSPECIFIED Kirchartz, Thomas UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-328983
DOI:	10.1002/admi.202000366
Journal or Publication Title:	Adv. Mater. Interfaces
Volume:	7
Number:	16
Date:	2020
Publisher:	WILEY
Place of Publication:	HOBOKEN
ISSN:	2196-7350
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Chemistry > Institute of Inorganic Chemistry
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language RAY PHOTOELECTRON-SPECTROSCOPY; LIGHT-EMITTING-DIODES; OPEN-CIRCUIT VOLTAGES; OPTOELECTRONIC PROPERTIES; THIN-FILMS; LOW-COST; EFFICIENCY; OXIDE; PERFORMANCE; CU2O Multiple languages Chemistry, Multidisciplinary; Materials Science, Multidisciplinary Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/32898