STM Journals Peer-reviewed research from Consortium e-Learning Network

Nano Trends – A Journal of Nano Technology & Its Applications

Numerical Simulation of Efficient Two-dimensional Based Perovskite Solar Cell by Changing the Hole Transporting Layer

  1. Mridubhashani Maurya
  2. Brijesh Kumar Pandey
  3. Shail Pandey

Abstract

In the designing of Photo Solar Cell (PSC) the choice of suitable electron transport layer (ETL)/ absorber layer / hole transport layer (HTL) with optimal thickness is very important. In the present device configuration of perovskite solar cell is TCO/ electron transport layer (TiO2)/ absorber layer (CH3NH3PbI3)/ hole transport layer (MoTe2/MoSe2/MoS2)/ metal back contact (Au). In the suggested device Hole transport layer was changed one by one with the MoTe2, MoSe2 and MoS2 and the performance of the device is numerically simulated. For all three-hole transport layers the performance of the device has been studied with the variation of the thickness of the absorber layer. Almost in all the cases the efficiency (PCE) of solar cell increases with increase in the thickness of absorber layer from 100 nm to 600 nm and decreases slightly from 700 nm to 1200 nm. In our simulated result the structure of hole transport layer MoSe2 shows higher efficiency of about 23.46%. The study of quantum efficiency with the variation of absorber layer thickness suggests that the finest observed spectral response for these structures was from 380nm to 600nm wavelength. This indicates that the perovskite harvesting materials are lying in the range of active visible region and can be used to expand in commercial perovskite solar cell sector.

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