Journal
ACS NANO
Volume 9, Issue 7, Pages 7714-7721Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsnano.5b03189
Keywords
perovskite; transparent electrode; tandem; dielectric/metal/dielectric; solar cell
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Funding
- National Science Foundation [NSF-ECCS 1202231]
- Air Force Office of Scientific Research [FA9550-12-1-0074]
- Directorate For Engineering [1202231] Funding Source: National Science Foundation
- Div Of Electrical, Commun & Cyber Sys [1202231] Funding Source: National Science Foundation
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Halide perovskites (PVSK) have attracted much attention in recent years due to their high potential as a next generation solar cell material. To further improve perovskites progress toward a state-of-the-art technology, it is desirable to create a tandem structure in which perovskite may be stacked with a current prevailing solar cell such as silicon (Si) or Cu(In,Ga)(Se,S)(2) (CIGS). The transparent top electrode is one of the key components as well as challenges to realize such tandem structure. Herein, we develop a multilayer transparent top electrode for perovskite photovoltaic devices delivering an 11.5% efficiency in top illumination mode. The transparent electrode is based on a dielectric/metal/dielectric structure, featuring an ultrathin gold seeded silver layer. A four terminal tandem solar cell employing solution processed CIGS and perovskite cells is also demonstrated with over 15% efficiency.
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