Vacuum-integrated electrospray deposition for highly reliable polymer thin film

Soohyung Park; Younjoo Lee; Yeonjin Yi

doi:10.1063/1.4757566

Vacuum-integrated electrospray deposition for highly reliable polymer thin film

Soohyung Park, Younjoo Lee, Yeonjin Yi

Department of Physics

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

7 Citations (Scopus)

Abstract

Vacuum electrospray deposition (ESD) equipment was designed to prepare polymer thin films. The polymer solution can be injected directly into vacuum system through multi-stage pumping line, so that the solvent residues and ambient contaminants are highly reduced. To test the performance of ESD system, we fabricated organic photovoltaic cells (OPVCs) by injecting polymer solution directly onto the substrate inside a high vacuum chamber. The OPVC fabricated has the structure of AlP3HT:PCBMPEDOT:PSSITO and was optimized by varying the speed of solution injection and concentration of the solution. The power conversion efficiency (PCE) of the optimized OPVC is 3.14% under AM 1.5G irradiation without any buffer layer at the cathode side. To test the advantages of the vacuum ESD, we exposed the device to atmosphere between the deposition steps of the active layer and cathode. This showed that the PCE of the vacuum processed device is 24 higher than that of the air exposed device and confirms the advantages of the vacuum prepared polymer film for high performance devices.

Original language	English
Article number	105106
Journal	Review of Scientific Instruments
Volume	83
Issue number	10
DOIs	https://doi.org/10.1063/1.4757566
Publication status	Published - 2012 Oct

Bibliographical note

Funding Information:
This work was supported by Samsung Display Company, the KIST Institutional Program (2E22735-12-069) and by a research project of the National Research Foundation of Korea (Grant No. 2012-0002303).

All Science Journal Classification (ASJC) codes

Instrumentation

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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title = "Vacuum-integrated electrospray deposition for highly reliable polymer thin film",

abstract = "Vacuum electrospray deposition (ESD) equipment was designed to prepare polymer thin films. The polymer solution can be injected directly into vacuum system through multi-stage pumping line, so that the solvent residues and ambient contaminants are highly reduced. To test the performance of ESD system, we fabricated organic photovoltaic cells (OPVCs) by injecting polymer solution directly onto the substrate inside a high vacuum chamber. The OPVC fabricated has the structure of AlP3HT:PCBMPEDOT:PSSITO and was optimized by varying the speed of solution injection and concentration of the solution. The power conversion efficiency (PCE) of the optimized OPVC is 3.14% under AM 1.5G irradiation without any buffer layer at the cathode side. To test the advantages of the vacuum ESD, we exposed the device to atmosphere between the deposition steps of the active layer and cathode. This showed that the PCE of the vacuum processed device is 24 higher than that of the air exposed device and confirms the advantages of the vacuum prepared polymer film for high performance devices.",

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N2 - Vacuum electrospray deposition (ESD) equipment was designed to prepare polymer thin films. The polymer solution can be injected directly into vacuum system through multi-stage pumping line, so that the solvent residues and ambient contaminants are highly reduced. To test the performance of ESD system, we fabricated organic photovoltaic cells (OPVCs) by injecting polymer solution directly onto the substrate inside a high vacuum chamber. The OPVC fabricated has the structure of AlP3HT:PCBMPEDOT:PSSITO and was optimized by varying the speed of solution injection and concentration of the solution. The power conversion efficiency (PCE) of the optimized OPVC is 3.14% under AM 1.5G irradiation without any buffer layer at the cathode side. To test the advantages of the vacuum ESD, we exposed the device to atmosphere between the deposition steps of the active layer and cathode. This showed that the PCE of the vacuum processed device is 24 higher than that of the air exposed device and confirms the advantages of the vacuum prepared polymer film for high performance devices.

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Vacuum-integrated electrospray deposition for highly reliable polymer thin film

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

UN SDGs

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