| Title: |
Graphene-PbS quantum dot hybrid photodetectors from 200 mm wafer scale processing |
| Authors: |
Sha Li; Zhenxing Wang; Bianca Robertz; Daniel Neumaier; Oihana Txoperena; Aranzazu Maestre; Amaia Zurutuza; Chris Bower; Ashley Rushton; Yinglin Liu; Chris Harris; Alexander Bessonov; Surama Malik; Mark Allen; Ivonne Medina-Salazar; Tapani Ryhänen; Max C. Lemme |
| Source: |
Scientific Reports, Vol 15, Iss 1, Pp 1-8 (2025) |
| Publisher Information: |
Nature Portfolio, 2025. |
| Publication Year: |
2025 |
| Collection: |
LCC:Medicine; LCC:Science |
| Subject Terms: |
Medicine; Science |
| Description: |
Abstract A 200 mm processing platform for the large-scale production of graphene field-effect transistor-quantum dot (GFET-QD) hybrid photodetectors is demonstrated. A comprehensive statistical analysis of the electrical data revealed a high yield (96%) and low variation in the 200 mm scale fabrication. The GFET-QD devices deliver responsivities of 105 to 106 V/W in the wavelength range from 400 to 1800 nm with a response time of 10 ms. The spectral sensitivity compares well to that obtained via 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 over a wide operation 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. |
| Document Type: |
article |
| File Description: |
electronic resource |
| Language: |
English |
| ISSN: |
2045-2322 |
| Relation: |
https://doaj.org/toc/2045-2322 |
| DOI: |
10.1038/s41598-025-96207-z |
| Access URL: |
https://doaj.org/article/e61b6ed97ff543ccbbe21a5511f62d2e |
| Accession Number: |
edsdoj.61b6ed97ff543ccbbe21a5511f62d2e |
| Database: |
Directory of Open Access Journals |