Phototriggered Depolymerization of Flexible Poly(phthalaldehyde) Substrates by Integrated Organic Light-Emitting Diodes

Kyung Min Lee; Oluwadamilola Phillips; Anthony Engler; Paul A. Kohl; Barry P. Rand

doi:10.1021/acsami.8b08181

Phototriggered Depolymerization of Flexible Poly(phthalaldehyde) Substrates by Integrated Organic Light-Emitting Diodes

Kyung Min Lee, Oluwadamilola Phillips, Anthony Engler, Paul A. Kohl, Barry P. Rand

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

28 Scopus citations

Abstract

We demonstrate phototriggered depolymerization of a low ceiling temperature (T_c) polymer, poly(phthalaldehyde) (PPHA), via internal light emission from integrated organic light-emitting diodes (OLEDs) fabricated directly on flexible PPHA substrates with silver nanowire electrodes. The depolymerization of the PPHA substrates is triggered by absorption of the OLED emission by a sensitizer that activates a photoacid generator via energetically favorable electron transfer. We confirm with Fourier-transform infrared spectroscopy that the photon doses delivered by the integrated OLED are sufficient to depolymerize the PPHA substrates. We determine this critical dosage by measuring the operating lifetimes of the OLEDs whose failure is believed to be due to significant mechanical softening during the liquefaction of decomposed phthalaldehyde monomers.

Original language	English (US)
Pages (from-to)	28062-28068
Number of pages	7
Journal	ACS Applied Materials and Interfaces
Volume	10
Issue number	33
DOIs	https://doi.org/10.1021/acsami.8b08181
State	Published - Aug 22 2018

All Science Journal Classification (ASJC) codes

General Materials Science

Keywords

low ceiling temperature polymer
organic light-emitting devices
transient electronics
transient polymer

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10.1021/acsami.8b08181

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title = "Phototriggered Depolymerization of Flexible Poly(phthalaldehyde) Substrates by Integrated Organic Light-Emitting Diodes",

abstract = "We demonstrate phototriggered depolymerization of a low ceiling temperature (Tc) polymer, poly(phthalaldehyde) (PPHA), via internal light emission from integrated organic light-emitting diodes (OLEDs) fabricated directly on flexible PPHA substrates with silver nanowire electrodes. The depolymerization of the PPHA substrates is triggered by absorption of the OLED emission by a sensitizer that activates a photoacid generator via energetically favorable electron transfer. We confirm with Fourier-transform infrared spectroscopy that the photon doses delivered by the integrated OLED are sufficient to depolymerize the PPHA substrates. We determine this critical dosage by measuring the operating lifetimes of the OLEDs whose failure is believed to be due to significant mechanical softening during the liquefaction of decomposed phthalaldehyde monomers.",

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author = "Lee, {Kyung Min} and Oluwadamilola Phillips and Anthony Engler and Kohl, {Paul A.} and Rand, {Barry P.}",

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T1 - Phototriggered Depolymerization of Flexible Poly(phthalaldehyde) Substrates by Integrated Organic Light-Emitting Diodes

AU - Lee, Kyung Min

AU - Phillips, Oluwadamilola

AU - Engler, Anthony

AU - Kohl, Paul A.

AU - Rand, Barry P.

PY - 2018/8/22

Y1 - 2018/8/22

N2 - We demonstrate phototriggered depolymerization of a low ceiling temperature (Tc) polymer, poly(phthalaldehyde) (PPHA), via internal light emission from integrated organic light-emitting diodes (OLEDs) fabricated directly on flexible PPHA substrates with silver nanowire electrodes. The depolymerization of the PPHA substrates is triggered by absorption of the OLED emission by a sensitizer that activates a photoacid generator via energetically favorable electron transfer. We confirm with Fourier-transform infrared spectroscopy that the photon doses delivered by the integrated OLED are sufficient to depolymerize the PPHA substrates. We determine this critical dosage by measuring the operating lifetimes of the OLEDs whose failure is believed to be due to significant mechanical softening during the liquefaction of decomposed phthalaldehyde monomers.

AB - We demonstrate phototriggered depolymerization of a low ceiling temperature (Tc) polymer, poly(phthalaldehyde) (PPHA), via internal light emission from integrated organic light-emitting diodes (OLEDs) fabricated directly on flexible PPHA substrates with silver nanowire electrodes. The depolymerization of the PPHA substrates is triggered by absorption of the OLED emission by a sensitizer that activates a photoacid generator via energetically favorable electron transfer. We confirm with Fourier-transform infrared spectroscopy that the photon doses delivered by the integrated OLED are sufficient to depolymerize the PPHA substrates. We determine this critical dosage by measuring the operating lifetimes of the OLEDs whose failure is believed to be due to significant mechanical softening during the liquefaction of decomposed phthalaldehyde monomers.

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KW - organic light-emitting devices

KW - transient electronics

KW - transient polymer

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Phototriggered Depolymerization of Flexible Poly(phthalaldehyde) Substrates by Integrated Organic Light-Emitting Diodes

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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