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SCI Article

Selenide effect for oxidation stability of the organic solvent-free copper sulfide Nano-particles and its organic photodiode application

	성명	좌용호 ()
	소속	공학대학 재료화학공학과
	캠퍼스
	우수선정주	2019년 07월 1째주

Author

Kwon, Young-Tae (Dept Fus Chem Engn); Lim, Hyo-Ryoung (Dept Fus Chem Engn); 좌용호 (Dept Fus Chem Engn) corresponding author;

Corresponding Author Info

Wang, DH (reprint author), Chung Ang Univ, Sch Integrat Engn, 84 Heukseok Ro, Seoul 06974, South Korea.; Choa, YH (reprint author), Hanyang Univ, Dept Fus Chem Engn, Ansan 15588, South Korea.

E-mail

choa15@hanyang.ac.kr

Document Type

Article

Source

APPLIED SURFACE SCIENCE Volume:484 Issue: Pages:1253-1262 Published:2019

Times Cited

External Information

http://dx.doi.org/10.1016/j.apsusc.2019.04.166

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.

Web of Science Categories

Chemistry, Physical; Materials Science, Coatings & Films; Physics, Applied; Physics, Condensed Matter

Funding

Basic Science Research Program, through the National Research Foundation of Korea (NRF, Republic of Korea) - Ministry of Science, ICT and Future Planning [2017R1A1A1A05000772]; Ministry of Trade, Industry and Energy (MOTIE, Republic of Korea) under Indust

Language

English

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