The photo-hall effect in high-mobility organic semiconductors (Conference Presentation)

Vladimir Bruevich; Hyun Ho Choi; Vitaly Podzorov

doi:10.1117/12.2633688

3 October 2022 The photo-hall effect in high-mobility organic semiconductors (Conference Presentation)

Vladimir Bruevich, Hyun Ho Choi, Vitaly Podzorov

Proceedings Volume PC12211, Organic and Hybrid Field-Effect Transistors XXI; PC122110T (2022) https://doi.org/10.1117/12.2633688
Event: SPIE Organic Photonics + Electronics, 2022, San Diego, California, United States

Abstract

Photogeneration and transport of mobile photocarriers in high-mobility crystalline organic semiconductors remain underexplored. The photo-Hall effect was used to address the fundamental charge transport properties of these functional molecular materials, without the need for fabricating complex transistor devices or chemical doping. Here we demonstrate a photo-Hall effect in organic semiconductors, using a benchmark molecular system rubrene as an experimental platform. We show that this technique can be used to directly measure the charge carrier mobility and photocarrier density, disentangle the surface and bulk transport phenomena, as well as deepen our understanding of the mechanism of photoconductivity in these high-performance materials.

Conference Presentation

Citation Download Citation

Vladimir Bruevich, Hyun Ho Choi, and Vitaly Podzorov "The photo-hall effect in high-mobility organic semiconductors (Conference Presentation)", Proc. SPIE PC12211, Organic and Hybrid Field-Effect Transistors XXI, PC122110T (3 October 2022); https://doi.org/10.1117/12.2633688

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KEYWORDS

Organic semiconductors

Crystals

Diffusion

Excitons

Semiconductor materials

Semiconductors

Transistors

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