National University of Kaohsiung /  Prof. Cheng-Jie Lu

 Pain Points Solved 

Organic perovskite thin films suffer from poor thermal stability and mismatch with substrates, leading to film degradation during traditional high-temperature thermal processes. The feature of this technology is that the crystallization annealing process can be completed at low temperatures (as low as room temperature), which facilitates crystal orientation control, significantly improving film quality and device characteristics.

 Technology Introduction 

Addressing the common issues of poor thermal stability and substrate mismatch in organic perovskite materials for optoelectronic applications, this technology develops a crystallization annealing process that can be completed at low temperatures or even room temperature. This technology effectively controls crystal orientation growth, enhancing film crystallinity, uniformity, and density, avoiding material degradation caused by traditional high-temperature processes.

▲Caption: Development of organic perovskite thin film photo-annealing technology. The film shows better crystallinity after photo-annealing compared to thermal annealing, with a more uniform and dense grain structure. Simultaneously, photo-annealed specimens exhibit more than three times the resistance to degradation.

▲Caption: Development of organic perovskite thin film electric field annealing technology. Compared to 50°C heat treatment or the commonly used 100°C heat treatment, electric field annealed specimens possess better crystallinity, lower defect density (weak PL), and large grain structures.

▲Caption: Development of 2D organic perovskite thin film resistive memory devices. By controlling the film to form appropriate crystal orientation alignments, the device's resistive switching cycles can reach thousands of times.

 Application Examples 

Electronics, Optoelectronics, Semiconductors.

 Related Links 

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 Patent Name and Number 

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 Industry-Academia / Tech Transfer Partner 

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 Honors and Awards  

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 Technical Contact  

Vivian Lee, Administrative Assistant 

National University of Kaohsiung
Tel: +886 7-5916639
Email: vivianlee@nuk.edu.tw