Ultra-Sensitive All-Polymer Near-Infrared Photodetectors via Van der Waals Layered Triple Heterojunction.

ABSTRACT: All-polymer near-infrared (NIR) organic photodetectors (OPDs) offer exceptional stability and stretchability, making them highly promising for next-generation wearable electronics, biomedical sensing, and imaging applications. However, their practical implementation remains hindered by limitations such as low responsivity, high noise, and limited sensitivity, highlighting the critical challenge of optimizing the active layer structure to enhance device performance. In this study, we propose a van der Waals layered triple heterojunction (LTHJ) structure fabricated via water transfer printing (WTP) to reduce trap density, improve interfacial quality, optimize charge transport pathways, and enhance carrier dissociation and extraction efficiency. The LTHJ OPD exhibits simultaneously low noise

SUBMITTER: Guo L 

PROVIDER: S-EPMC12491782 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature