Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV16)
Publication date: 28th March 2016
Perovskite based solar cells have seen tremendous development in last five years and recently achieved a record efficiency of 20.1 %1. The high efficiency cells from the group usually based on meso-TiO2 as a base layer for perovskite infiltration, though the exact role of TiO2 in these cells is yet to be explained.
Here we are reporting for the first time a novel architecture of perovskite based solar cells, which, we prefer to call meso-planar hybrid architecture of perovskite solar cells. The deposition of meso-TiO2 after compact TiO2 blocking layer, has been done with the help of a mesh in these cells similar to already reported by our group for the development of semitransparent solar cells2, followed by methyl ammonium lead iodide perovskite deposition using two step deposition process.
The initial results showed power conversion efficiency (PCE) of 10.76% with high open circuit voltage and reasonable current density of about 19.63 mA/cm2. The cells have been found ideal hybrid architecture to study the effect of device architecture on the cell performance. The photovoltaic parameters of the cells, effect of architecture on these parameters, charge recombination lifetime and charge extraction etc. will be the content of the proposed talk.
Keywords: Mesoporous-planar hybrid architecture, Perovskite solar cells, TiO2 grid, Methylammonium lead iodide perovskite
References:
1. http://www.nrel.gov/ncpv/images/effi ciency_chart.jpg. Accessed: March 2015.
2. Sigalit Aharon , Michael Layani , Bat-El Cohen , Efrat Shukrun , Shlomo Magdassi and Lioz Etgar, Self-Assembly of Perovskite for Fabrication of Semitransparent Perovskite Solar Cells, Adv. Mater. Interfaces 2015, 1500118.
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