Electrical and photoelectrical properties of polymer single nanowire made of diketopyrrolopyrrole-based conjugated copolymer bearing dithieno[3,2-b: 2′,3′-d]thiophene

Ji Ho Kim, Kyung Hwan Kim, Jicheol Shin, Tae Wan Lee, Min Ju Cho, Dong Hoon Choi

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We demonstrated a diketopyrrolopyrrole (DPP)-based alternating copolymer (i.e., PDTTDPP) which contains planar dithieno[3,2-b:2′,3′-d] thiophene (DTT) unit and high effectiveness in the fabrication of solution-based polymer nanowires (PNWs). PDTTDPP was found highly crystalline and exhibited optimized energy levels for p-type semiconductor. The electrical properties of single PNWs such as specific resistivity (ρ) and photoresponsivity (R) were investigated by measuring the dark current and photocurrent under visible and near-infrared lights. These electrical properties were compared for high (HA-PNW) and low (LA-PNW) aspect ratio PNWs produced using two different preparation methods such as membrane wetting method and self-assembly in a dilute solution. The measured responsivity (R) values of single HA-PNW at +40 V are 134 and 114 A W-1 at 632 and 830 nm, respectively. In contrast, the R values of LA-PNW under identical conditions were determined to range from 0.55 A W-1 to 0.65 A W-1 (λ = 632 nm) and from 0.61 A W-1 to 0.73 A W-1 (λ = 830 nm) at a +40 V bias voltage, which are significantly lower than those of HA-PNW-based devices.

Original languageEnglish
Pages (from-to)37-42
Number of pages6
JournalSynthetic Metals
Volume167
Issue number1
DOIs
Publication statusPublished - 2013 Mar 15

Fingerprint

Bearings (structural)
Thiophenes
Thiophene
thiophenes
Nanowires
copolymers
Polymers
nanowires
Copolymers
electrical properties
polymers
Electric properties
high polymers
p-type semiconductors
Dark currents
Bias voltage
dark current
Photocurrents
Self assembly
Electron energy levels

Keywords

  • Conjugated polymer
  • Electrical property
  • Nanowire
  • Photoresponsivity

ASJC Scopus subject areas

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

Cite this

Electrical and photoelectrical properties of polymer single nanowire made of diketopyrrolopyrrole-based conjugated copolymer bearing dithieno[3,2-b : 2′,3′-d]thiophene. / Kim, Ji Ho; Kim, Kyung Hwan; Shin, Jicheol; Lee, Tae Wan; Cho, Min Ju; Choi, Dong Hoon.

In: Synthetic Metals, Vol. 167, No. 1, 15.03.2013, p. 37-42.

Research output: Contribution to journalArticle

@article{b78292e59b24443bac1446db32c0524e,
title = "Electrical and photoelectrical properties of polymer single nanowire made of diketopyrrolopyrrole-based conjugated copolymer bearing dithieno[3,2-b: 2′,3′-d]thiophene",
abstract = "We demonstrated a diketopyrrolopyrrole (DPP)-based alternating copolymer (i.e., PDTTDPP) which contains planar dithieno[3,2-b:2′,3′-d] thiophene (DTT) unit and high effectiveness in the fabrication of solution-based polymer nanowires (PNWs). PDTTDPP was found highly crystalline and exhibited optimized energy levels for p-type semiconductor. The electrical properties of single PNWs such as specific resistivity (ρ) and photoresponsivity (R) were investigated by measuring the dark current and photocurrent under visible and near-infrared lights. These electrical properties were compared for high (HA-PNW) and low (LA-PNW) aspect ratio PNWs produced using two different preparation methods such as membrane wetting method and self-assembly in a dilute solution. The measured responsivity (R) values of single HA-PNW at +40 V are 134 and 114 A W-1 at 632 and 830 nm, respectively. In contrast, the R values of LA-PNW under identical conditions were determined to range from 0.55 A W-1 to 0.65 A W-1 (λ = 632 nm) and from 0.61 A W-1 to 0.73 A W-1 (λ = 830 nm) at a +40 V bias voltage, which are significantly lower than those of HA-PNW-based devices.",
keywords = "Conjugated polymer, Electrical property, Nanowire, Photoresponsivity",
author = "Kim, {Ji Ho} and Kim, {Kyung Hwan} and Jicheol Shin and Lee, {Tae Wan} and Cho, {Min Ju} and Choi, {Dong Hoon}",
year = "2013",
month = "3",
day = "15",
doi = "10.1016/j.synthmet.2013.02.006",
language = "English",
volume = "167",
pages = "37--42",
journal = "Synthetic Metals",
issn = "0379-6779",
publisher = "Elsevier BV",
number = "1",

}

TY - JOUR

T1 - Electrical and photoelectrical properties of polymer single nanowire made of diketopyrrolopyrrole-based conjugated copolymer bearing dithieno[3,2-b

T2 - 2′,3′-d]thiophene

AU - Kim, Ji Ho

AU - Kim, Kyung Hwan

AU - Shin, Jicheol

AU - Lee, Tae Wan

AU - Cho, Min Ju

AU - Choi, Dong Hoon

PY - 2013/3/15

Y1 - 2013/3/15

N2 - We demonstrated a diketopyrrolopyrrole (DPP)-based alternating copolymer (i.e., PDTTDPP) which contains planar dithieno[3,2-b:2′,3′-d] thiophene (DTT) unit and high effectiveness in the fabrication of solution-based polymer nanowires (PNWs). PDTTDPP was found highly crystalline and exhibited optimized energy levels for p-type semiconductor. The electrical properties of single PNWs such as specific resistivity (ρ) and photoresponsivity (R) were investigated by measuring the dark current and photocurrent under visible and near-infrared lights. These electrical properties were compared for high (HA-PNW) and low (LA-PNW) aspect ratio PNWs produced using two different preparation methods such as membrane wetting method and self-assembly in a dilute solution. The measured responsivity (R) values of single HA-PNW at +40 V are 134 and 114 A W-1 at 632 and 830 nm, respectively. In contrast, the R values of LA-PNW under identical conditions were determined to range from 0.55 A W-1 to 0.65 A W-1 (λ = 632 nm) and from 0.61 A W-1 to 0.73 A W-1 (λ = 830 nm) at a +40 V bias voltage, which are significantly lower than those of HA-PNW-based devices.

AB - We demonstrated a diketopyrrolopyrrole (DPP)-based alternating copolymer (i.e., PDTTDPP) which contains planar dithieno[3,2-b:2′,3′-d] thiophene (DTT) unit and high effectiveness in the fabrication of solution-based polymer nanowires (PNWs). PDTTDPP was found highly crystalline and exhibited optimized energy levels for p-type semiconductor. The electrical properties of single PNWs such as specific resistivity (ρ) and photoresponsivity (R) were investigated by measuring the dark current and photocurrent under visible and near-infrared lights. These electrical properties were compared for high (HA-PNW) and low (LA-PNW) aspect ratio PNWs produced using two different preparation methods such as membrane wetting method and self-assembly in a dilute solution. The measured responsivity (R) values of single HA-PNW at +40 V are 134 and 114 A W-1 at 632 and 830 nm, respectively. In contrast, the R values of LA-PNW under identical conditions were determined to range from 0.55 A W-1 to 0.65 A W-1 (λ = 632 nm) and from 0.61 A W-1 to 0.73 A W-1 (λ = 830 nm) at a +40 V bias voltage, which are significantly lower than those of HA-PNW-based devices.

KW - Conjugated polymer

KW - Electrical property

KW - Nanowire

KW - Photoresponsivity

UR - http://www.scopus.com/inward/record.url?scp=84874891381&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84874891381&partnerID=8YFLogxK

U2 - 10.1016/j.synthmet.2013.02.006

DO - 10.1016/j.synthmet.2013.02.006

M3 - Article

AN - SCOPUS:84874891381

VL - 167

SP - 37

EP - 42

JO - Synthetic Metals

JF - Synthetic Metals

SN - 0379-6779

IS - 1

ER -