All room-temperature solution-process approaches for achieving bendable, low-cost and high-performance perovskite solar cells

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

Dr Liang Chunjun   (Co-Investigator)

Dr. OUYANG Dan   (Co-Investigator)

Dr. CHENG Jiaqi   (Co-Investigator)

Dr. ZHANG Hong   (Co-Investigator)

Dr Xiao Junyan   (Co-Investigator)

Dr Zhu Lu   (Co-Investigator)

Dr Lu Shunmian   (Co-Investigator)

Dr Ren Xingang   (Co-Investigator)

Dr. LIN Hong   (Co-Investigator)

Dr. LI Can   (Co-Investigator)

24

2016-12-01

2018-11-30

1079850

All room-temperature solution-process approaches for achieving bendable, low-cost and high-performance perovskite solar cells

achieving bendable, high-performance, low-cost, perovskite solar cells, room-temperature solution-process

Others - Electrical and Electronic Engineering

Engineering (E)

ITS/070/16FP

Innovation and Technology Support Programme (Tier 2)

2016

Completed

Recently, multilayer-structured perovskite solar cells (PVSCs) with a high power conversion efficiency have drawn intense attention for the great potential to realize commercialization and replace conventional silicon solar cells. However, the most state-of-the-art PVSCs require a series of layer-dependent high-temperature sintering or annealing processes. They will increase the complexity, cost and energy consumption. Furthermore, the high-temperature annealing may be a concern for their fabrication on flexible substrates. Since the non-brittle/flexible property, cost and scalable capability are critical for their practical applications, low-temperature and solution-process approaches for each layer of PVSCs are highly desirable. In this project, we propose to achieve bendable, low-cost and high-performance PVSCs through all room-temperature solution-process approaches. (1) We will develop a simple and controllable room-temperature solution-process approach to form nanostructure-based NiOx films as hole transport layers of PVSCs. (2) A new recipe of room-temperature solution-based crystallization of perovskite films (PbI2 (raw-material) residue-free, large grain-size and high crystallinity) will be invented. All room-temperature processed flexible PVSCs with the efficiency of 14% and power-per-weight of 23 W/ g will be demonstrated. (3) Device stability will be improved by functionalizing perovskites with moisture-proofing molecules. This project will contribute to large-scale, low-cost, flexible and high-performance solar cells for green energy applications.