The First Generation of Off-The-Shelf Treatment for Achieving Highly Stable and Efficient Perovskite Solar Cells

Professor Choy, Wallace Chik Ho   (Project Coordinator (PC))

Dr. OUYANG Dan   (Co-Investigator)

Dr Cheng Jiaqi   (Co-Investigator)

Dr Li Can   (Co-Investigator)

Mr Zhang Hong   (Co-Investigator)

Mr Wang Zishuai   (Co-Investigator)

Dr Ye Fei   (Co-Investigator)

Mr Huang Zhanfeng   (Co-Investigator)

Mr Zhao Yong   (Co-Investigator)

Dr Zhu Lu   (Co-Investigator)

Dr Ren Xingang   (Co-Investigator)

Mr Lin Hong   (Co-Investigator)

24

2019-01-01

2020-12-31

2499745

The First Generation of Off-The-Shelf Treatment for Achieving Highly Stable and Efficient Perovskite Solar Cells

Efficient, First Generation, Highly Stable, Off-The-Shelf Treatment, Perovskite Solar Cells

Others - Electrical and Electronic Engineering

Engineering (E)

ITS/162/18FP

Innovation and Technology Support Programme (Tier 2)

2018

Completed

While perovskite solar cells (PVSCs) achieve high solar-to-power conversion efficiency (PCE), the poor stability in humid environment hinders their practical applications. Although strategies have been reported to solve this issue, these methods are used during core-device fabrication which increase the process complexity and threat of introducing contaminants in the fabrication. Besides, since solar panels are typically formed by in-series connecting solar-cell units, the poor solar-cell unit will primarily govern and degrade module performances due to unmatched photovoltaic parameters of individual devices (hereafter named as poor-cell issue). Here, we propose the first off-the-shelf (OS) treatment on fabricated PVSCs to enhance PCE and stability, and production yield of high-quality devices (Off-the-shelf treatment refers to an universal approach applicable for various devices made from perovskites). By optimizing the unique OS treatment, we will (1) demonstrate PVSCs with PCE not less than 22%; (2) address the poor-cell issue and demonstrate multi-series-connected PVSC module with not less than 20% PCE; (3) demonstrate device stability with not less than 85% efficiency-retention after 5000 hours operation; (4) establish OS material-library for treating perovskite devices (e.g., PVSCs, LEDs and photodetectors). This project offers an originally general strategy for developing highly stable and efficient perovskite devices/modules.