DocumentCode :
85690
Title :
Organic–Inorganic Halide Perovskites: Perspectives for Silicon-Based Tandem Solar Cells
Author :
Loper, P. ; Niesen, Bjoern ; Soo-Jin Moon ; Martin De Nicolas, Silvia ; Holovsky, Jakub ; Remes, Zdenek ; Ledinsky, Martin ; Haug, Franz-Josef ; Jun-Ho Yum ; De Wolf, Stefaan ; Ballif, Christophe
Author_Institution :
Photovoltaics & Thin-Film Electron. Lab., Inst. of Microeng., Neuchatel, Switzerland
Volume :
4
Issue :
6
fYear :
2014
fDate :
Nov. 2014
Firstpage :
1545
Lastpage :
1551
Abstract :
We investigate the efficiency potential of organic-inorganic halide perovskite/crystalline silicon tandem solar cells, a new class of photovoltaic devices targeting long-term cost reductions by ultrahigh conversion efficiencies. Methyl ammonium lead triiodide perovskite solar cells are particularly interesting as the top cell in Si-based tandem devices due to their suitable band gap, high photovoltage, and low sub-bandgap absorption. We derive optical models for a perovskite/Si tandem cell with Lambertian light trapping in the perovskite top cell, as well as for a top cell in the single pass limit. We find that unlike for other thin-film device architectures, light trapping is not required for the triiodide perovskite/Si tandem to reach matched top and bottom cell currents. While a Lambertian top cell could be employed in a four-terminal tandem, a top cell in the single pass limit enables a current-matched monolithic device with realistic top cell thicknesses. We calculate a limiting efficiency of 35.67% for an ideal (no parasitic absorption, ideal contacts) monolithic tandem, assuming a top cell open-circuit voltage of 1100 mV.
Keywords :
elemental semiconductors; energy gap; organic-inorganic hybrid materials; silicon; solar cells; Lambertian light trapping; band gap; current-matched monolithic device; efficiency 35.67 percent; four-terminal tandem; limiting efficiency; methyl ammonium lead triiodide perovskite solar cells; organic-inorganic halide perovskites; silicon-based tandem solar cells; top cell open-circuit voltage; voltage 1100 mV; Light trapping; Organic electronics; Organic inorganic hybrid materials; Photovoltaic cells; Silicon; Thin film devices; Advanced concept organic PV; QD enhanced; and thin-film PV device properties; modeling; organic–inorganic hybrid materials; organic??inorganic hybrid materials; perovskite; photovoltaic cells; tandem;
fLanguage :
English
Journal_Title :
Photovoltaics, IEEE Journal of
Publisher :
ieee
ISSN :
2156-3381
Type :
jour
DOI :
10.1109/JPHOTOV.2014.2355421
Filename :
6910221
Link To Document :
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