Laser assisted rapid fabrication of perovskite photodetector

Fatemeh Khorramshahi; Belqasem Aljafari; Ioannis Kymissis; Arash Takshi

doi:10.1117/12.2529796

30 August 2019 Laser assisted rapid fabrication of perovskite photodetector

Fatemeh Khorramshahi, Belqasem Aljafari, Ioannis Kymissis, Arash Takshi

Proceedings Volume 11096, Organic and Hybrid Sensors and Bioelectronics XII; 110960C (2019) https://doi.org/10.1117/12.2529796
Event: SPIE Organic Photonics + Electronics, 2019, San Diego, California, United States

Abstract

In the past few years, with the advance of laser technology, laser engraving has been considered as an alternative method to traditional lithography in the fabrication of microfluidic devices. Considering solution-based method as the main technique for perovskite deposition, the capillary motion of perovskite precursor can be employed for filling a laser-engraved patterned conducting layer. Herein, we used CO₂ laser micromachining for the fabrication of the perovskite photodetector. First, several microchannels were formed by laser engraving of indium tin oxide (ITO) coated polyethylene terephthalate (PET) substrates. Power, speed and frequency parameters of the laser were varied in order to achieve the desired channel roughness. The samples were characterized by scanning electron microscope (SEM) and potentiostat. The I-V characteristics and bode plots of the sample showed a capacitive and an inductive behavior. Finally, a simulation tool was used to analyze the experimental data. This approach offers a simple, rapid and low-cost fabrication method for perovskite photodetector and can be used in large-scale commercial application.

Conference Presentation

Citation Download Citation

Fatemeh Khorramshahi, Belqasem Aljafari, Ioannis Kymissis, and Arash Takshi "Laser assisted rapid fabrication of perovskite photodetector", Proc. SPIE 11096, Organic and Hybrid Sensors and Bioelectronics XII, 110960C (30 August 2019); https://doi.org/10.1117/12.2529796

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