Dry-processing of metal halide perovskites into thin films

Introduction

Perovskite semiconductors are promising for photovoltaics with a potentially very large market. Industrial compatible deposition processes that do not employ solvents are unavailable currently.

Development of a New Deposition Process

We have developed a new deposition process that is completely solvent-free, compatible with a wide range of perovskite precursors, operates at moderate vacuum levels, and leads to high-quality films with crystal grains in the order of 500 nm.

Goals of the APERITIF Project

In the APERITIF project, we aim to attract industrial sponsors, both equipment manufacturers and photovoltaic module producers, to:

1. License this novel process
2. Build a larger scale prototype
3. Implement it for larger area solar cells

To do this, we will protect this process and the novel perovskite compositions and subsequent solar cells by filing patents.

Expected Outcomes

In view of the superior perovskite film quality, we expect to obtain more efficient and stable photovoltaic devices.

Advantages of the Processing Method

As the processing method is compatible with continuous operation, it allows for high-speed production, something that is urgently needed to address the enormous growth scenarios of photovoltaic panels.