Choose Your Own Adventure: Fabrication of Monolithic All‐Perovskite Tandem Photovoltaics
Abstract
Metal halide perovskites (MHPs) have transfixed the photovoltaic (PV) community due to their outstanding and tunable optoelectronic properties coupled to demonstrations of high‐power conversion efficiencies (PCE) at a range of bandgaps. This has motivated the field to push perovskites to reach the highest possible performance. One way to increase the efficiency is by fabricating multijunction solar cells, which can split the solar spectrum, reducing thermalization loss. Low‐cost all‐perovskite tandems have a real chance to soon exceed 30% PCE, which could transform the PV industry. Achieving this goal requires the identification of perovskite sub‐cells that are both highly efficient and can be effectively integrated. Herein, it is discussed how to navigate the multiple‐choice adventure in choosing between the myriad of options and considerations present when deciding what perovskite materials, contact layers, and processing tools to use. Some of the potential fabrication pitfalls often encountered in MHP based tandem PVs are highlighted, so that they can hopefully be avoided in the future.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Nov 11, 2020
- Source ID
- 10.1002/adma.202003312
Entities
People
- Giles E. Eperon
- Joseph J. Berry
- Joseph M. Luther
- Jérémie Werner
- Kai Zhu
- Michael McGehee
- Taylor Moot
Organizations
- National Renewable Energy Laboratory
- Office of Energy Efficiency and Renewable Energy
- Solar Energy Technologies Office
- Swift Solar Inc.
- United States Department of Defense
- United States Department of Energy
- University of Colorado