High-work-function molybdenum oxide hole extraction contacts in hybrid organic–inorganic perovskite solar cells
Journal Article
·
· ACS Applied Materials and Interfaces
- Princeton Univ., Princeton, NJ (United States); National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Princeton Univ., Princeton, NJ (United States)
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Weizmann Institute of Science, Rehovot (Israel)
- Weizmann Institute of Science, Rehovot (Israel); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- National Renewable Energy Lab. (NREL), Golden, CO (United States); Univ. of Washington, Seattle, WA (United States)
Here, we investigate the effect of high work function contacts in halide perovskite absorber-based photovoltaic devices. Photoemission spectroscopy measurements reveal that band bending is induced in the absorber by the deposition of the high work function molybdenum trioxide (MoO3). We find that direct contact between MoO3 and the perovskite leads to a chemical reaction, which diminishes device functionality. Introducing an ultrathin spiro-MeOTAD buffer layer prevents the reaction, yet the altered evolution of the energy levels in the methylammonium lead iodide (MAPbI3) layer at the interface still negatively impacts device performance.
- Research Organization:
- National Renewable Energy Laboratory (NREL), Golden, CO (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office
- Grant/Contract Number:
- AC36-08GO28308
- OSTI ID:
- 1337615
- Report Number(s):
- NREL/JA-5K00-67634
- Journal Information:
- ACS Applied Materials and Interfaces, Vol. 8, Issue 46; ISSN 1944-8244
- Publisher:
- American Chemical Society (ACS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 136 works
Citation information provided by
Web of Science
Web of Science
Similar Records
Perovskite Solar Cells for High-Efficiency Tandems
Reactions at noble metal contacts with methylammonium lead triiodide perovskites: Role of underpotential deposition and electrochemistry
Processing Dependent Influence of the Hole Transport Layer Ionization Energy on Methylammonium Lead Iodide Perovskite Photovoltaics
Technical Report
·
Sat Sep 30 00:00:00 EDT 2017
·
OSTI ID:1337615
Reactions at noble metal contacts with methylammonium lead triiodide perovskites: Role of underpotential deposition and electrochemistry
Journal Article
·
Thu Apr 04 00:00:00 EDT 2019
· APL Materials
·
OSTI ID:1337615
+6 more
Processing Dependent Influence of the Hole Transport Layer Ionization Energy on Methylammonium Lead Iodide Perovskite Photovoltaics
Journal Article
·
Thu Apr 19 00:00:00 EDT 2018
· ACS Applied Materials and Interfaces
·
OSTI ID:1337615
+5 more