Hybrid structures of organic dye and graphene for ultrahigh gain photodetectors
- Title
- Hybrid structures of organic dye and graphene for ultrahigh gain photodetectors
- Author(s)
- Lee, Youngbin ; Yu, Seong Hun ; Jeon, Jiwon ; Kim, Hyunmin ; Lee, Jun Young ; Kim, Hyungjun ; Ahn, Jong-Hyun ; Hwang, Euyheon ; Cho, Jeong Ho
- Issued Date
- 2015-07
- Citation
- Carbon, v.88, pp.165 - 172
- Type
- Article
- Keywords
- Broad Spectral ; DENSITY-FUNCTIONAL THEORY ; Dye Sensitized ; Fluorescence ; Graphene ; Hybrid Photo Detectors ; Hybrid Structure ; LONDON DISPERSION ; NANOPARTICLES ; Optoelectronic Devices ; Organic Dye Molecules ; OXIDE ; Photoabsorptions ; PHOTOCONDUCTOR ; Photodetectors ; Photons ; PHOTORESPONSE ; SINGLE-LAYER GRAPHENE ; SUBSTRATE ; ULTRAHIGH GAIN ; Ultraviolet Region
- ISSN
- 0008-6223
- Abstract
- Abstract A hybrid structure comprising organic dye molecules (e.g., rhodamine 6G) and graphene was developed for the realization of high-performance optoelectronic devices. The fabricated photodetector offered a broad spectral photo-response across wavelengths in the infrared, visible, and ultraviolet regions, as well as a high responsivity (∼460 A/W at illumination power of 1 μW). The photocurrent generated in the hybrid photodetector (∼mA) was much higher than that generated in a pristine graphene photodetector (<μA). The performance of the dye-sensitized photodetector relied on enhanced photoabsorption and the implementation of a photocurrent gain arising from the photo-excited charges. © 2015 Elsevier Ltd. All rights reserved.
- Publisher
- Elsevier Ltd
- Related Researcher
-
-
Kim, Hyunmin 바이오메디컬연구부
- Research Interests Nonlinear optics; Femtosecond ultrafast carrier dynamics; Super resolution microscopy; Optical soliton transport; Biological imaging
-
- Files in This Item:
-
There are no files associated with this item.
- Appears in Collections:
- Division of Biotechnology 1. Journal Articles
Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.