Molecular doping of near-infrared organic photodetectors for photoplethysmogram sensors

Binghao Wang; Alberto D. Scaccabarozzi; Haoyang Wang; Mari Koizumi; Mohamad Insan Nugraha; Yuanbao Lin; Yuliar Firdaus; Yan Wang; Sunghoon Lee; Tomoyuki Yokota; Thomas D. Anthopoulos; Takao Someya

doi:10.1039/d0tc05549b

Molecular doping of near-infrared organic photodetectors for photoplethysmogram sensors

Binghao Wang, Alberto D. Scaccabarozzi, Haoyang Wang, Mari Koizumi, Mohamad Insan Nugraha, Yuanbao Lin, Yuliar Firdaus, Yan Wang, Sunghoon Lee, Tomoyuki Yokota^*, Thomas D. Anthopoulos, Takao Someya

^*Corresponding author for this work

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

6 Scopus citations

Abstract

Doping is a common strategy in the field of semiconductor technology but its employment in organic photodetectors (OPDs) has been limited due to the typical uncontrollable increase of the dark currents. This study introduces three different molecular dopants, including p-type tris(pentafluorophenyl)borane, n-type benzyl viologen, and (4-(1,3-dimethyl-2,3-dihydro-1H-benzoimidazol-2-yl)-phenyl)dimethylamine, for near-infrared poly[[2,5-bis(2-hexyldecyl)-2,3,5,6-tetrahydro-3,6-dioxopyrrolo[3,4-c]pyrrole-1,4-diyl]-alt-[3′,3′′-dimethyl-2,2′:5′,2′′-terthiophene]-5,5′′-diyl]:[6,6]-phenyl C₆₁butyric acid methyl ester (PMDPP3T:PC₆₁BM) bulk-heterojunction OPDs. The results show that OPDs with optimal 0.02 wt% dopants exhibit low dark current (3.18 × 10⁻⁸A cm⁻²), high detectivity (5.56 × 10¹²Jones), and good environmental stability for ∼2 months. These doped OPDs are further used for pulse wave monitoring, which exhibit stable waveforms and can distinguish slow and fast heartbeat rates.

Original language	English
Pages (from-to)	3129-3135
Number of pages	7
Journal	Journal of Materials Chemistry C
Volume	9
Issue number	9
DOIs	https://doi.org/10.1039/d0tc05549b
State	Published - 7 Mar 2021
Externally published	Yes

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@article{51dc3e4ea6b8481db0959b92b012a301,

title = "Molecular doping of near-infrared organic photodetectors for photoplethysmogram sensors",

abstract = "Doping is a common strategy in the field of semiconductor technology but its employment in organic photodetectors (OPDs) has been limited due to the typical uncontrollable increase of the dark currents. This study introduces three different molecular dopants, including p-type tris(pentafluorophenyl)borane, n-type benzyl viologen, and (4-(1,3-dimethyl-2,3-dihydro-1H-benzoimidazol-2-yl)-phenyl)dimethylamine, for near-infrared poly[[2,5-bis(2-hexyldecyl)-2,3,5,6-tetrahydro-3,6-dioxopyrrolo[3,4-c]pyrrole-1,4-diyl]-alt-[3′,3′′-dimethyl-2,2′:5′,2′′-terthiophene]-5,5′′-diyl]:[6,6]-phenyl C61butyric acid methyl ester (PMDPP3T:PC61BM) bulk-heterojunction OPDs. The results show that OPDs with optimal 0.02 wt% dopants exhibit low dark current (3.18 × 10−8A cm−2), high detectivity (5.56 × 1012Jones), and good environmental stability for ∼2 months. These doped OPDs are further used for pulse wave monitoring, which exhibit stable waveforms and can distinguish slow and fast heartbeat rates.",

author = "Binghao Wang and Scaccabarozzi, {Alberto D.} and Haoyang Wang and Mari Koizumi and Nugraha, {Mohamad Insan} and Yuanbao Lin and Yuliar Firdaus and Yan Wang and Sunghoon Lee and Tomoyuki Yokota and Anthopoulos, {Thomas D.} and Takao Someya",

note = "Publisher Copyright: {\textcopyright} The Royal Society of Chemistry 2021.",

year = "2021",

month = mar,

day = "7",

doi = "10.1039/d0tc05549b",

language = "英语",

volume = "9",

pages = "3129--3135",

journal = "Journal of Materials Chemistry C",

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TY - JOUR

T1 - Molecular doping of near-infrared organic photodetectors for photoplethysmogram sensors

AU - Wang, Binghao

AU - Scaccabarozzi, Alberto D.

AU - Wang, Haoyang

AU - Koizumi, Mari

AU - Nugraha, Mohamad Insan

AU - Lin, Yuanbao

AU - Firdaus, Yuliar

AU - Wang, Yan

AU - Lee, Sunghoon

AU - Yokota, Tomoyuki

AU - Anthopoulos, Thomas D.

AU - Someya, Takao

PY - 2021/3/7

Y1 - 2021/3/7

N2 - Doping is a common strategy in the field of semiconductor technology but its employment in organic photodetectors (OPDs) has been limited due to the typical uncontrollable increase of the dark currents. This study introduces three different molecular dopants, including p-type tris(pentafluorophenyl)borane, n-type benzyl viologen, and (4-(1,3-dimethyl-2,3-dihydro-1H-benzoimidazol-2-yl)-phenyl)dimethylamine, for near-infrared poly[[2,5-bis(2-hexyldecyl)-2,3,5,6-tetrahydro-3,6-dioxopyrrolo[3,4-c]pyrrole-1,4-diyl]-alt-[3′,3′′-dimethyl-2,2′:5′,2′′-terthiophene]-5,5′′-diyl]:[6,6]-phenyl C61butyric acid methyl ester (PMDPP3T:PC61BM) bulk-heterojunction OPDs. The results show that OPDs with optimal 0.02 wt% dopants exhibit low dark current (3.18 × 10−8A cm−2), high detectivity (5.56 × 1012Jones), and good environmental stability for ∼2 months. These doped OPDs are further used for pulse wave monitoring, which exhibit stable waveforms and can distinguish slow and fast heartbeat rates.

AB - Doping is a common strategy in the field of semiconductor technology but its employment in organic photodetectors (OPDs) has been limited due to the typical uncontrollable increase of the dark currents. This study introduces three different molecular dopants, including p-type tris(pentafluorophenyl)borane, n-type benzyl viologen, and (4-(1,3-dimethyl-2,3-dihydro-1H-benzoimidazol-2-yl)-phenyl)dimethylamine, for near-infrared poly[[2,5-bis(2-hexyldecyl)-2,3,5,6-tetrahydro-3,6-dioxopyrrolo[3,4-c]pyrrole-1,4-diyl]-alt-[3′,3′′-dimethyl-2,2′:5′,2′′-terthiophene]-5,5′′-diyl]:[6,6]-phenyl C61butyric acid methyl ester (PMDPP3T:PC61BM) bulk-heterojunction OPDs. The results show that OPDs with optimal 0.02 wt% dopants exhibit low dark current (3.18 × 10−8A cm−2), high detectivity (5.56 × 1012Jones), and good environmental stability for ∼2 months. These doped OPDs are further used for pulse wave monitoring, which exhibit stable waveforms and can distinguish slow and fast heartbeat rates.

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U2 - 10.1039/d0tc05549b

DO - 10.1039/d0tc05549b

M3 - 文章

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SN - 2050-7534

VL - 9

SP - 3129

EP - 3135

JO - Journal of Materials Chemistry C

JF - Journal of Materials Chemistry C

IS - 9

ER -

Molecular doping of near-infrared organic photodetectors for photoplethysmogram sensors

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