Sujan's project page

Optical characterization of multilayer device stack in wide band gap perovskite solar cells using Poly-TPD as hole transport layer.

Sujan Pyakurel

My research focus is on Optical characterization of multilayer device stack in wide band gap perovskite solar cells using Poly-TPD as hole transport layer. Those widebandgap perovskite are studied to be included as an absorber layer in tandem solar cells and underwater solar cells. Thin films are deposited by spin-casting and slot-die printing in a Nitrogen glove box. Films are charecterized with optical methods including ellipsometry, UV-VIS, and FTIR to monitor film thickness and film quality of the films in the device stack. XRD, SEM, XPS and stylus profilometry are used to learn more about the layers including whether or not the layers are continous and wether or not the perovskite is stable. A solar simulator is used to determine the difference in PCE between device stacks including a CuI HTL and device stacks including a poly-TPD HTL.

Publications:
[1]

Presentations:
[1] Sujan Pyakurel, Nischal Khakurel, Wilhelmus J. Geerts, "Hole Transport Layer Optimization for a Triple Halide Perovskite Solar Cell using Poly-TPD", Poster presented at the 2023-Fall meeting of the TSAPS, San Angelo State University, October 12-14, 2023.

Sujan is a Physics major at Texas State University enrolled in our MSc. program