Graphene-Quantum Dot Hybrid Photodetectors from 200 mm Wafer Scale Processing
| Autor: | Li, Sha, Wang, Zhenxing, Robertz, Bianca, Neumaier, Daniel, Txoperena, Oihana, Maestre, Arantxa, Zurutuza, Amaia, Bower, Chris, Rushton, Ashley, Liu, Yinglin, Harris, Chris, Bessonov, Alexander, Malik, Surama, Allen, Mark, Medina-Salazar, Ivonne, Ryhänen, Tapani, Lemme, Max C. |
|---|---|
| Rok vydání: | 2023 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| Popis: | A 200 mm processing platform for the large-scale production of graphene field-effect transistor-quantum dot (GFET-QD) hybrid photodetectors is demonstrated. Comprehensive statistical analysis of electric data shows a high yield (96%) and low variation of the 200 mm scale fabrication. The GFET-QD devices deliver responsivities of 10${^5}$ - 10${^6}$ V/W in a wavelength range from 400 to 1800 nm, at up to 100 frames per second. Spectral sensitivity compares well to that obtained using similar GFET-QD photodetectors. The device concept enables gate-tunable suppression or enhancement of the photovoltage, which may be exploited for electric shutter operation by toggling between the signal capture and shutter states. The devices show good stability at a wide operation range and external quantum efficiency of 20% in the short-wavelength infrared range. Furthermore, an integration solution with complementary metal-oxide-semiconductor technology is presented to realize image-sensor-array chips and a proof-of-concept image system. This work demonstrates the potential for the volume manufacture of infrared photodetectors for a wide range of imaging applications. Comment: 29 pages |
| Databáze: | arXiv |
| Externí odkaz: |
|