Study on interface engineering of layer-by-layer structure for applications in organic photodetector

Shuanghong Wu; Junjie Yang; Wenbin Ye; Han Zhou; Xiangru Wang; Xiongbang Wei; Silu Tao; Zhenyu Chen; Chundong Wang; Qihui Wu; Zhi Chen

doi:10.1016/j.synthmet.2017.10.001

Study on interface engineering of layer-by-layer structure for applications in organic photodetector

Shuanghong Wu, Junjie Yang, Wenbin Ye, Han Zhou, Xiangru Wang, Xiongbang Wei, Silu Tao, Zhenyu Chen, Chundong Wang, Qihui Wu, Zhi Chen

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

The interfacial electronic structure of layer-by-layer 4-(dicyanomethylene)-2-t-butyl-6-(1,1,7,7-tetramethyljulolidyl-9-enyl)-4H-pyran (DCJTB)/fullerene C₆₀ was investigated using ultra-violet photoemission spectroscopy (UPS). Photoemission data of period of DCJTB/C₆₀/DCJTB films suggested the formation of surface dipole and interfacial band bending across the interfaces, which greatly facilitates the charge transfer from DCJTB to C₆₀ and from C₆₀ to DCJTB layer as well. When applied this layer-by-layer structure to a near-infrared photodetector, a maximum of photocurrent was achieved by the device with 3 periods of DCJTB/C₆₀ thin films. Finally, the detailed work mechanism of this detector was discussed.

Original language	English
Pages (from-to)	16-19
Number of pages	4
Journal	Synthetic Metals
Volume	235
DOIs	https://doi.org/10.1016/j.synthmet.2017.10.001
State	Published - Jan 2018

Bibliographical note

Publisher Copyright:
© 2017

Keywords

Interface
Organic
Photodetector
UPS

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/j.synthmet.2017.10.001

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title = "Study on interface engineering of layer-by-layer structure for applications in organic photodetector",

abstract = "The interfacial electronic structure of layer-by-layer 4-(dicyanomethylene)-2-t-butyl-6-(1,1,7,7-tetramethyljulolidyl-9-enyl)-4H-pyran (DCJTB)/fullerene C60 was investigated using ultra-violet photoemission spectroscopy (UPS). Photoemission data of period of DCJTB/C60/DCJTB films suggested the formation of surface dipole and interfacial band bending across the interfaces, which greatly facilitates the charge transfer from DCJTB to C60 and from C60 to DCJTB layer as well. When applied this layer-by-layer structure to a near-infrared photodetector, a maximum of photocurrent was achieved by the device with 3 periods of DCJTB/C60 thin films. Finally, the detailed work mechanism of this detector was discussed.",

keywords = "Interface, Organic, Photodetector, UPS",

author = "Shuanghong Wu and Junjie Yang and Wenbin Ye and Han Zhou and Xiangru Wang and Xiongbang Wei and Silu Tao and Zhenyu Chen and Chundong Wang and Qihui Wu and Zhi Chen",

note = "Publisher Copyright: {\textcopyright} 2017",

year = "2018",

month = jan,

doi = "10.1016/j.synthmet.2017.10.001",

language = "English",

volume = "235",

pages = "16--19",

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TY - JOUR

T1 - Study on interface engineering of layer-by-layer structure for applications in organic photodetector

AU - Wu, Shuanghong

AU - Yang, Junjie

AU - Ye, Wenbin

AU - Zhou, Han

AU - Wang, Xiangru

AU - Wei, Xiongbang

AU - Tao, Silu

AU - Chen, Zhenyu

AU - Wang, Chundong

AU - Wu, Qihui

AU - Chen, Zhi

PY - 2018/1

Y1 - 2018/1

N2 - The interfacial electronic structure of layer-by-layer 4-(dicyanomethylene)-2-t-butyl-6-(1,1,7,7-tetramethyljulolidyl-9-enyl)-4H-pyran (DCJTB)/fullerene C60 was investigated using ultra-violet photoemission spectroscopy (UPS). Photoemission data of period of DCJTB/C60/DCJTB films suggested the formation of surface dipole and interfacial band bending across the interfaces, which greatly facilitates the charge transfer from DCJTB to C60 and from C60 to DCJTB layer as well. When applied this layer-by-layer structure to a near-infrared photodetector, a maximum of photocurrent was achieved by the device with 3 periods of DCJTB/C60 thin films. Finally, the detailed work mechanism of this detector was discussed.

AB - The interfacial electronic structure of layer-by-layer 4-(dicyanomethylene)-2-t-butyl-6-(1,1,7,7-tetramethyljulolidyl-9-enyl)-4H-pyran (DCJTB)/fullerene C60 was investigated using ultra-violet photoemission spectroscopy (UPS). Photoemission data of period of DCJTB/C60/DCJTB films suggested the formation of surface dipole and interfacial band bending across the interfaces, which greatly facilitates the charge transfer from DCJTB to C60 and from C60 to DCJTB layer as well. When applied this layer-by-layer structure to a near-infrared photodetector, a maximum of photocurrent was achieved by the device with 3 periods of DCJTB/C60 thin films. Finally, the detailed work mechanism of this detector was discussed.

KW - Interface

KW - Organic

KW - Photodetector

KW - UPS

UR - http://www.scopus.com/inward/record.url?scp=85034439352&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85034439352&partnerID=8YFLogxK

U2 - 10.1016/j.synthmet.2017.10.001

DO - 10.1016/j.synthmet.2017.10.001

M3 - Article

AN - SCOPUS:85034439352

SN - 0379-6779

VL - 235

SP - 16

EP - 19

JO - Synthetic Metals

JF - Synthetic Metals

ER -

Study on interface engineering of layer-by-layer structure for applications in organic photodetector

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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