High-performance ultraviolet photodetector based on organic-inorganic hybrid structure

Dali Shao; Mingpeng Yu; Hongtao Sun; Guoqing Xin; Jie Lian; Shayla Sawyer

doi:10.1021/am504090e

High-performance ultraviolet photodetector based on organic-inorganic hybrid structure

Dali Shao
, Mingpeng Yu
, Hongtao Sun
, Guoqing Xin
, Jie Lian
, Shayla Sawyer

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

71 Scopus citations

Abstract

An ultraviolet (UV) photodetector is fabricated by sandwiching a nanocomposite active layer between charge-selective semiconducting polymers. The nanocomposite active layer composed of TiO₂ nanoparticles (NPs) blended with 1,3-bis(N-carbazolyl)benzene (mCP), which acts as a "valve" controller that enables hole injection into the device upon UV illumination. The UV photodetector demonstrated a high photocurrent to dark current ratio (∼10⁴), a large linear dynamic range of 60 dB, and a remarkable external quantum efficiency (∼8.5 × 10⁴%) for the UV light at 351 nm. In addition to discussing the performance of the UV photodetector, a general strategy for design and fabrication of high-performance UV photodetectors with hole injection operation mode is suggested.

Original language	English (US)
Pages (from-to)	14690-14694
Number of pages	5
Journal	ACS Applied Materials and Interfaces
Volume	6
Issue number	16
DOIs	https://doi.org/10.1021/am504090e
State	Published - Aug 27 2014
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Materials Science

Keywords

hole injection
organic-inorganic
photoresponsivity
polymer
ultraviolet photodetector

Access to Document

10.1021/am504090e

Cite this

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title = "High-performance ultraviolet photodetector based on organic-inorganic hybrid structure",

abstract = "An ultraviolet (UV) photodetector is fabricated by sandwiching a nanocomposite active layer between charge-selective semiconducting polymers. The nanocomposite active layer composed of TiO2 nanoparticles (NPs) blended with 1,3-bis(N-carbazolyl)benzene (mCP), which acts as a {"}valve{"} controller that enables hole injection into the device upon UV illumination. The UV photodetector demonstrated a high photocurrent to dark current ratio (∼104), a large linear dynamic range of 60 dB, and a remarkable external quantum efficiency (∼8.5 × 104\%) for the UV light at 351 nm. In addition to discussing the performance of the UV photodetector, a general strategy for design and fabrication of high-performance UV photodetectors with hole injection operation mode is suggested.",

keywords = "hole injection, organic-inorganic, photoresponsivity, polymer, ultraviolet photodetector",

author = "Dali Shao and Mingpeng Yu and Hongtao Sun and Guoqing Xin and Jie Lian and Shayla Sawyer",

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doi = "10.1021/am504090e",

language = "English (US)",

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T1 - High-performance ultraviolet photodetector based on organic-inorganic hybrid structure

AU - Shao, Dali

AU - Yu, Mingpeng

AU - Sun, Hongtao

AU - Xin, Guoqing

AU - Lian, Jie

AU - Sawyer, Shayla

PY - 2014/8/27

Y1 - 2014/8/27

N2 - An ultraviolet (UV) photodetector is fabricated by sandwiching a nanocomposite active layer between charge-selective semiconducting polymers. The nanocomposite active layer composed of TiO2 nanoparticles (NPs) blended with 1,3-bis(N-carbazolyl)benzene (mCP), which acts as a "valve" controller that enables hole injection into the device upon UV illumination. The UV photodetector demonstrated a high photocurrent to dark current ratio (∼104), a large linear dynamic range of 60 dB, and a remarkable external quantum efficiency (∼8.5 × 104%) for the UV light at 351 nm. In addition to discussing the performance of the UV photodetector, a general strategy for design and fabrication of high-performance UV photodetectors with hole injection operation mode is suggested.

AB - An ultraviolet (UV) photodetector is fabricated by sandwiching a nanocomposite active layer between charge-selective semiconducting polymers. The nanocomposite active layer composed of TiO2 nanoparticles (NPs) blended with 1,3-bis(N-carbazolyl)benzene (mCP), which acts as a "valve" controller that enables hole injection into the device upon UV illumination. The UV photodetector demonstrated a high photocurrent to dark current ratio (∼104), a large linear dynamic range of 60 dB, and a remarkable external quantum efficiency (∼8.5 × 104%) for the UV light at 351 nm. In addition to discussing the performance of the UV photodetector, a general strategy for design and fabrication of high-performance UV photodetectors with hole injection operation mode is suggested.

KW - hole injection

KW - organic-inorganic

KW - photoresponsivity

KW - polymer

KW - ultraviolet photodetector

UR - https://www.scopus.com/pages/publications/84906810030

UR - https://www.scopus.com/pages/publications/84906810030#tab=citedBy

U2 - 10.1021/am504090e

DO - 10.1021/am504090e

M3 - Article

AN - SCOPUS:84906810030

SN - 1944-8244

VL - 6

SP - 14690

EP - 14694

JO - ACS Applied Materials and Interfaces

JF - ACS Applied Materials and Interfaces

IS - 16

ER -

High-performance ultraviolet photodetector based on organic-inorganic hybrid structure

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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