The research was conducted by our supervisor Mr. Md. Sazzadur Rahman. The topic was a part of our thesis work, latter we developed it into research work to the research paper.  I was the second author of this paper. 

The main goal of this research study was to explore inexpensive alternative and commonly used noble metal like Silver (Ag). We used Plasmon Copper Nanocube (NC) arrays at the back contact of the inverted planer Perovskite solar cell. A wide range (40-100nm) of cubic size of the NC was investigated for the light absorption enhancement and for the visual transparency. So the structure was semi transparent too. Also the absorber layer thickness was varied from 100-300nm. The Halide of the Perovskite was also varied with Br-composition (CH3NH3PbBrxI3−x ,x = 0 to 1). This study was done using Finite-Difference Time-Domain (FDTD) analysis method.

The paper was published at IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC), 2019.

Click here to read/download the full paper from my ResearchGate profile.

This study also led by my supervisor Mr. Md. Sazzadur Rahman.

The objective of this study was to find the Light Absorption enhancement as well as transparency of the solar cell if we place Silver (AG) NC  at the back contact layer and the absorber layer of the semitransparent planar perovskite (CH3NH3PbBrxI3−x ,x = 0 to 1) solar cell. The analysis was done by using finite difference time domain (FDTD) analysis. We found that placing the NC at the back contact results higher absorption enhancement, in contrast, cell with NCs at the absorber layer provide better transparency at a fair level of absorption enhancement.

The paper was published at IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC), 2019

Click here to read/download the full paper from my ResearchGate profile.

The environmental friendliness and excellent thermal stability proves Cesium Tin Iodide (CsSnI3) as one of the promising materials for the commercialization of the perovskite solar cells. However, CsSnI3 solar cells suffer from poor efficiency due to having low open-circuit voltage, V OC attributed to poor absorber film quality as well as energy level mismatch at the interfaces between different layers like transparent front contact (typically used Indium Tin Oxide, ITO) – carrier transport layer interface. In order to improve the energy matching between ITO – hole transport layer (HTL) interface, a typical inverted planar perovskite solar cell (ITO/HTL/CsSnI3 /ETL) is numerically simulated (Finite difference time domain, FDTD analysis followed by electrical simulation) here, with various types of doped ITO layers having higher work functions (≥ 5eV), replacing the typical undoped ITO material having lower work function (≤ 4.7eV). The simulation results illustrate that, utilizing the higher work function and optical transparency of available doped ITO materials the V OC of a typical CsSnI3 cell can be increased from 0.5V up to 1.1V which will make it possible to achieve power conversion efficiency as high as 11% (which is 3.3% with undoped ITO), without adopting complex modification of the absorber layer.

The paper was published at TENCON 2020 - 2020 IEEE REGION 10 CONFERENCE (TENCON), 2020

Click here to read/download the full paper from my ResearchGate profile.