We have fabricated chiral WS₂ rolls that utilize a chiral superstructure to address the lack of chirality in traditional two-dimensional materials. This structure exhibits responsiveness to both linearly polarized light and circularly polarized light. This unique combination enables the development of circular/linear polarization-sensitive photodetectors. Our data demonstrate that chiral WS₂ rolls exhibit robust linear/circular polarization responsiveness. Compared to traditional circular/linear polarization-sensitive photodetectors, this approach simplifies device fabrication and miniaturization, making it a promising optoelectronic material. The ability to effectively detect both linearly polarized light (LPL) and circularly polarized light (CPL) enhances the versatility of these devices, paving the way for innovative applications in optical sensing and communication. Overall, chiral WS₂ rolls represent a significant advancement in the field of optoelectronics, offering potential improvements in performance and functionality.

Photogating and electrical gating are key physical mechanisms in organic phototransistors (OPTs). However, most OPTs are based on thick and polycrystalline films, which leads to substantially low efficiency of both photogating and electrical gating and thus reduced photoresponse. Herein, high-performance OPTs based on few-layered organic single-crystalline heterojunctions are proposed and the obstacle of thick and polycrystalline films for photodetection is overcome. Because of the molecular scale thickness of the type I organic single-crystalline heterojunctions in OPTs, both photogating and electrical gating are highly efficient. By synergy of efficient photogating and electrical gating, key figures of merit of OPTs reach the highest among those based on planar heterojunctions so far as we know. The production of few-layered organic single-crystalline heterojunctions will provide a new type of advanced materials for various applications.