| 초록 |
Optoelectronic devices based on organic semiconducting materials have already shown a potential for low-cost next-generation devices. To enhance a performance of the devices, studying inorganic hole transporting materials is important to improve the charge transport of the devices. In this study, Se-doped copper sulfide (CuS) was utilized to organic photodiodes (OPDs) as a p-type semiconductor with PEDOT:PSS, using a simple mixing strategy in aqueous system owing to stable dispersion of Se-doped CuS. OPD with Se-doped CuS showed a suppressed dark current, which led to improved detectivity, because of formation of electron barrier compared to PEDOT:PSS-only device. Consequently, incorporating nanoparticles by doping anion in PEDOT:PSS based on this novel depositing method can realize cost-effective fabrication of efficient optoelectronic devices. |
