Selenide effect for oxidation stability of the organic solvent-free copper sulfide Nano-particles and its organic photodiode application
- Title
- Selenide effect for oxidation stability of the organic solvent-free copper sulfide Nano-particles and its organic photodiode application
- Author
- 좌용호
- Keywords
- Copper chalcogenide; Aqueous synthesis; Organic photodiodes; Charge transport
- Issue Date
- 2019-08
- Publisher
- ELSEVIER SCIENCE BV
- Citation
- APPLIED SURFACE SCIENCE, v. 484, Page. 1253-1262
- Abstract
- The development of copper chalcogenide nanomaterials has shown a potential for advanced energy application, because copper chalcogenide are p-type semiconductors with high hole concentration. In this study, copper sulfide (CuS) was synthesized and alloyed with Se via a water-based method without the use of organic solvent. We demonstrated that Se alloying to CuS nano-particles (NPs) could improve oxidation stability of dispersion in aqueous solution. Through this, the NPs were integrated with poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) into a simple mixing strategy, and used as a hole transporting materials with PEDOT:PSS for organic photodiodes (OPDs). OPD device with NPs showed suppressed dark current and remarkably enhanced detectivity in all wavelength regions due to formation of electron barrier compared to pristine PEDOT:PSS device. Moreover, when exposed to signal pulses, the photocurrent is improved, and the noise current is suppressed for the OPD with NPs. Therefore, incorporating stable copper chalcogenide NPs can improve performance, leading to cost-effective optoelectronic devices.
- URI
- https://www.sciencedirect.com/science/article/pii/S0169433219311663https://repository.hanyang.ac.kr/handle/20.500.11754/121949
- ISSN
- 0169-4332; 1873-5584
- DOI
- 10.1016/j.apsusc.2019.04.166
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
- Files in This Item:
There are no files associated with this item.
- Export
- RIS (EndNote)
- XLS (Excel)
- XML