Graphite particle modification on spiro- OMeTAD to enhance the power conversion properties of perovskite solar cells
Year: 2025
Type: conference-paper
Abstract: Graphite nanoparticles are blended into Spiro-OMeTAD solution to enhance the film quality of the hole-transporting-layer (HTL) and the performance of perovskite solar cells (PSCs). It is observed that the graphite particles help increase the power conversion efficiency (PCE) from 19.25 (± 1.13) % to 20.81 (± 0.77) % (optimized at 22.01%). Meanwhile, a lower hysteresis index (HI) is observed. The enhanced performance is attributed to the interaction between graphite and Spiro-OMeTAD. The conductive graphite nanoparticles could improve the film continuity of the Spiro-OMeTAD basing HTL, which accelerates electron extraction and reduces charge recombination processes, contributing to PCE improvement.
Authors: Sijia Liu, Conghua Zhou
Institution: Central South University
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4413191473