Solution processing of high-quality metal halide perovskite thin films for photovoltaic and optoelectronic applications

Zhang, Wei (2016) Solution processing of high-quality metal halide perovskite thin films for photovoltaic and optoelectronic applications. In: The 19th Interfinish World Congress & Exhibition (Interfinish 2016), 20-22 Sep 2016, Beijing, China.

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Item Type:Conference or Workshop contribution (Presentation)
Item Status:Live Archive

Abstract

Metal halide perovskites have emerged as a class of semiconductor materials with unique optical and electrical properties which enable a broad range of photovoltaic and optoelectronic applications. Since the first embodiment of perovskite solar cells showing a power conversion efficiency of 3.8%, the device performance has now been boosted up to a certified 22.1% within a few years. Obtaining high-quality perovskite thin films is the key step toward high performance photovoltaic and optoelectronic devices. The quality of the thin films is higly dependenent on the perovskite precursors and fabrication methods. Among various fabrication techinques, solution processing is still the most favorable as it relies on inexpensive deposition equipment and enables tuning the crystallization and composition of the perovskite thin film. In this talk, we briefly introduce the one-step solution processing of ultrasmooth, highly crystalline and pinhole free perovskite thin films through lead acetate based precursors, discuss the mechanism of perovskite crystallization and thin film formation as compared to other non-halide precursor routes, explore their energy related applications, and finally discuss current challenges of this method and possible solutions, with the aim of stimulating potential new fabrication techniques and applications.

Additional Information:Invited speaker and session chair
Keywords:Metal halide perovskites, Thin Films, Photovoltaic, Optoelectronic, Solution Processing
Subjects:F Physical Sciences > F200 Materials Science
J Technologies > J910 Energy Technologies
Divisions:College of Science > School of Chemistry
ID Code:24637
Deposited On:10 Oct 2016 11:03

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