Work

Scalable MoS 2 /Si Photodiode Arrays From Roll‐to‐Roll Mechanical Exfoliation

Year: 2026

Type: article

Abstract: ABSTRACT We present a scalable, all‐dry route to MoS 2 /Si photodiodes based on high‐throughput roll‐to‐roll mechanical exfoliation. The method yields dense films of large‐lateral‐size MoS 2 nanosheets and enables the formation of heterojunctions that operate in the photovoltaic regime when transferred onto locally etched Si regions. Individual devices show robust, fast photoresponses and broadband wavelength sensitivity. We further implemented a linear pixel array demonstrating position sensing capability and a 4 × 4 array as a proof‐of‐concept imaging sensor. These results indicate that roll‐to‐roll mechanical exfoliation can overcome common limitations of solution‐processed films to enable low‐cost, self‐powered optoelectronic detectors for sensing and imaging applications.

Source: Advanced Science

DOI: 10.1002/advs.76787

Authors: Yigit Sozen, Thomas Pucher, Andres Castellanos‐Gomez

Institutions: Consejo Superior de Investigaciones Científicas, Instituto de Ciencia de Materiales de Madrid

Language: English

Topic: 2D Materials and Applications

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $6,730

Funders: Ministerio de Ciencia, Innovación y Universidades, European Research Council