A high-resolution thin-film fingerprint sensor using a printed organic photodetector

Daniel Tordera; Bart Peeters; Hylke B. Akkerman; Albert J.J.M. van Breemen; Joris Maas; Santhosh Shanmugam; Auke J. Kronemeijer; Gerwin H. Gelinck

doi:10.1002/admt.201900651

A high-resolution thin-film fingerprint sensor using a printed organic photodetector

Daniel Tordera, Bart Peeters, Hylke B. Akkerman, Albert J.J.M. van Breemen, Joris Maas, Santhosh Shanmugam, Auke J. Kronemeijer, Gerwin H. Gelinck (Corresponding author)

Molecular Materials and Nanosystems

Onderzoeksoutput: Bijdrage aan tijdschrift › Tijdschriftartikel › Academic › peer review

6 Citaten (Scopus)

Samenvatting

Organic photodetectors (OPDs) have attracted much attention in recent years, due to their promise in large-area light sensing applications. Here, high-resolution slot-die-coated large-area bulk heterojunction organic photodiode (OPD) arrays are reported. The OPD uses a novel electron transport layer, indium gallium zinc oxide in combination with a molybdenum oxide top-electrode. Together, these effectively reduce dark current densities to very low levels of ≈10⁻⁷ mA cm⁻² at −2 V. The OPDs show linear behavior in a wide range of light intensities and high detectivity values under reverse bias conditions. When coated on a 508 ppi TFT backplane, a high-quality optical fingerprint scanner capable of imaging in reflection is realized. The optical and electrical properties of the fingerprint sensor are characterized and high-resolution fingerprint images are obtained.

Originele taal-2	Engels
Artikelnummer	1900651
Aantal pagina's	6
Tijdschrift	Advanced Materials Technologies
Volume	4
Nummer van het tijdschrift	11
Vroegere onlinedatum	23 sep 2019
DOI's	https://doi.org/10.1002/admt.201900651
Status	Gepubliceerd - 1 nov 2019

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10.1002/admt.201900651

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title = "A high-resolution thin-film fingerprint sensor using a printed organic photodetector",

abstract = "Organic photodetectors (OPDs) have attracted much attention in recent years, due to their promise in large-area light sensing applications. Here, high-resolution slot-die-coated large-area bulk heterojunction organic photodiode (OPD) arrays are reported. The OPD uses a novel electron transport layer, indium gallium zinc oxide in combination with a molybdenum oxide top-electrode. Together, these effectively reduce dark current densities to very low levels of ≈10−7 mA cm−2 at −2 V. The OPDs show linear behavior in a wide range of light intensities and high detectivity values under reverse bias conditions. When coated on a 508 ppi TFT backplane, a high-quality optical fingerprint scanner capable of imaging in reflection is realized. The optical and electrical properties of the fingerprint sensor are characterized and high-resolution fingerprint images are obtained.",

keywords = "biometric sensor, bulk heterojunction, fingerprint sensor, organic photodetector, organic photodiode",

author = "Daniel Tordera and Bart Peeters and Akkerman, {Hylke B.} and {van Breemen}, {Albert J.J.M.} and Joris Maas and Santhosh Shanmugam and Kronemeijer, {Auke J.} and Gelinck, {Gerwin H.}",

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A high-resolution thin-film fingerprint sensor using a printed organic photodetector. / Tordera, Daniel; Peeters, Bart; Akkerman, Hylke B.; van Breemen, Albert J.J.M.; Maas, Joris; Shanmugam, Santhosh; Kronemeijer, Auke J.; Gelinck, Gerwin H. (Corresponding author).

In: Advanced Materials Technologies, Vol. 4, Nr. 11, 1900651, 01.11.2019.

Onderzoeksoutput: Bijdrage aan tijdschrift › Tijdschriftartikel › Academic › peer review

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AU - Maas, Joris

AU - Shanmugam, Santhosh

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AU - Gelinck, Gerwin H.

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AB - Organic photodetectors (OPDs) have attracted much attention in recent years, due to their promise in large-area light sensing applications. Here, high-resolution slot-die-coated large-area bulk heterojunction organic photodiode (OPD) arrays are reported. The OPD uses a novel electron transport layer, indium gallium zinc oxide in combination with a molybdenum oxide top-electrode. Together, these effectively reduce dark current densities to very low levels of ≈10−7 mA cm−2 at −2 V. The OPDs show linear behavior in a wide range of light intensities and high detectivity values under reverse bias conditions. When coated on a 508 ppi TFT backplane, a high-quality optical fingerprint scanner capable of imaging in reflection is realized. The optical and electrical properties of the fingerprint sensor are characterized and high-resolution fingerprint images are obtained.

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