Copper(I) Iodide Thin Films: Deposition Methods and Hole-Transporting Performance.
Mahboubeh Jamshidi1, James M Gardner1
1Department of Chemistry, Division of Applied Physical Chemistry, KTH Royal Institute of Technology, SE-10044 Stockholm, Sweden.
Molecules (Basel, Switzerland)
|April 27, 2024
Summary
Copper iodide (CuI) is a promising p-type semiconductor for electronic devices. This review covers CuI thin-film deposition techniques and their performance in solar cells, transistors, and LEDs.
Area of Science:
- Materials Science
- Solid-State Physics
- Optoelectronics
Background:
- Copper iodide (CuI) is a cost-effective, environmentally friendly p-type semiconductor with high transparency.
- It is a leading candidate for hole-transport layers in various optoelectronic devices.
- Advancements in deposition techniques are crucial for its widespread application.
Purpose of the Study:
- To review deposition techniques for copper iodide (CuI) thin films.
- To evaluate CuI's performance as a hole-transport material in perovskite solar cells, thin-film transistors, and light-emitting diodes.
- To discuss the impact of interface engineering on CuI-based devices.
Main Methods:
- Categorization of thin-film preparation into wet and neat methods.
- Summary of low-temperature, scalable deposition techniques for CuI.
- Analysis of performance data from devices utilizing CuI.
Main Results:
- CuI thin films exhibit over 80% transparency in the visible spectrum (400-750 nm).
- Various deposition methods enable low-temperature processing of CuI.
- CuI demonstrates effective hole transport in diverse electronic and optoelectronic applications.
Conclusions:
- Copper iodide is a versatile p-type material for advanced electronic devices.
- Optimized deposition and interface engineering are key to maximizing CuI performance.
- CuI holds significant potential for future developments in solar cells, transistors, and LEDs.


