Pathway to Halide Perovskite Photovoltaics: Two Recent Advances in All Perovksite Tandems
Joseph Berry a
a Chemistry and Nanoscience National Renewable Energy Laboratory
Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV19)
Roma, Italy, 2019 May 12th - 15th
Organizers: Prashant Kamat, Filippo De Angelis and Aldo Di Carlo
Invited Speaker, Joseph Berry, presentation 274
Publication date: 11th February 2019

Photovoltaic devices based on hybrid organic-inorganic perovskite absorbers have reached outstanding performance over the past few years, surpassing power conversion efficiency of over 23% for single junction and present multiple paths to tandems with efficiencies beyond 30%.  This talk will discuss recent progress and challenges in hybrid perovskite solar cells (HPSCs) with an emphasis on the role of materials integration challenges needed to enable device performance, tandem processing and stability.  Specifically, this talk will highlight recent progress at NREL, the challenges of tandems based on HPSC devices, and work to develop scalable HPSCs approaches for tandem and single junction systems. Details of material formation, the resulting interfaces and the role of processing in creating efficient device stacks, critical to high-volume manufacturing will be touched upon.  Our studies at NREL indicate formation dynamics for the active layer and interface to the contacts directly impacts the ability to create efficient stable devices and enable tandems from common (i.e. nonorthogonal) solvents.  Advanced concepts to improve low and wide bandgap HPSC systems critical to enabling tandems will also be presented. Data on the optoelectronic material and system properties as characterized by an array of analytical tools including time resolved spectroscopy, structural studies and device level evaluation will be presented to validate the technological relevance of advances and suggest overarching themes for research directions.

The authors acknowledge support from the De-risking halide perovskite solar cells program of the National Center for Photovoltaics, funded by the US Department of Energy, Office of Energy Efficiency and Renewable Energy, Solar Energy Technology Office with additional support from the Office of Naval Research

© Fundació Scito
We use our own and third party cookies for analysing and measuring usage of our website to improve our services. If you continue browsing, we consider accepting its use. You can check our Cookies Policy in which you will also find how to configure your web browser for the use of cookies. More info