Development of moisture-proof polydimethylsiloxane/aluminum oxide film and stability improvement of perovskite solar cells using the film

Eun Young Choi; Ju-Hee Kim; Bu-Jong Kim; Ji Hun Jang; Jincheol Kim; Nochang Park

doi:10.1039/c9ra01107b

Development of moisture-proof polydimethylsiloxane/aluminum oxide film and stability improvement of perovskite solar cells using the film

Eun Young Choi, Ju-Hee Kim, Bu-Jong Kim, Ji Hun Jang, Jincheol Kim^*, Nochang Park^*

^*Corresponding author for this work

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

20 Citations (Scopus)

24 Downloads (Pure)

Abstract

A method for enhancing the moisture barrier property of polydimethylsiloxane (PDMS) polymer films is proposed. This is achieved by filling the PDMS free volume with aluminum oxide (AlO_x). To deposit AlO_x inside PDMS, thermal atomic layer deposition (ALD) is employed. The PDMS/AlO_x film thus produced has a 30 nm AlO_x layer on the surface. Its water vapor transmission rate (WVTR) is 5.1 × 10^-3 g m^-2 d^-1 at 45 °C and 65% relative humidity (RH). The activation energy of permeability with the PDMS/AlO_x film for moisture permeation is determined to be 35.5 kJ mol^-1. To investigate the moisture barrier capability of the PDMS/AlO_x layer, (FAPbI₃)_0.85(MAPbBr₃)_0.15/spiro-OMeTAD/Au perovskite solar cells are fabricated, and encapsulated by the PDMS/AlO_x film. To minimize the thermal damage to solar cells during ALD, AlO_x deposition is performed at 95 °C. The solar cells exposed to 45 °C-65% RH for 300 h demonstrate less than a 5% drop in the power-conversion efficiency.

Original language	English
Pages (from-to)	11737-11744
Number of pages	8
Journal	RSC Advances
Volume	9
Issue number	21
DOIs	https://doi.org/10.1039/c9ra01107b
Publication status	Published - 2019
Externally published	Yes

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Copyright the Publisher 2019. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

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Publisher version (open access)Final published version, 812 KBLicence: CC BY-NC

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@article{88261db11ed6488f90cef855b81c1be8,

title = "Development of moisture-proof polydimethylsiloxane/aluminum oxide film and stability improvement of perovskite solar cells using the film",

abstract = "A method for enhancing the moisture barrier property of polydimethylsiloxane (PDMS) polymer films is proposed. This is achieved by filling the PDMS free volume with aluminum oxide (AlOx). To deposit AlOx inside PDMS, thermal atomic layer deposition (ALD) is employed. The PDMS/AlOx film thus produced has a 30 nm AlOx layer on the surface. Its water vapor transmission rate (WVTR) is 5.1 × 10-3 g m-2 d-1 at 45 °C and 65% relative humidity (RH). The activation energy of permeability with the PDMS/AlOx film for moisture permeation is determined to be 35.5 kJ mol-1. To investigate the moisture barrier capability of the PDMS/AlOx layer, (FAPbI3)0.85(MAPbBr3)0.15/spiro-OMeTAD/Au perovskite solar cells are fabricated, and encapsulated by the PDMS/AlOx film. To minimize the thermal damage to solar cells during ALD, AlOx deposition is performed at 95 °C. The solar cells exposed to 45 °C-65% RH for 300 h demonstrate less than a 5% drop in the power-conversion efficiency.",

author = "Choi, {Eun Young} and Ju-Hee Kim and Bu-Jong Kim and Jang, {Ji Hun} and Jincheol Kim and Nochang Park",

note = "Copyright the Publisher 2019. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.",

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doi = "10.1039/c9ra01107b",

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AU - Choi, Eun Young

AU - Kim, Ju-Hee

AU - Kim, Bu-Jong

AU - Jang, Ji Hun

AU - Kim, Jincheol

AU - Park, Nochang

N1 - Copyright the Publisher 2019. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

PY - 2019

Y1 - 2019

N2 - A method for enhancing the moisture barrier property of polydimethylsiloxane (PDMS) polymer films is proposed. This is achieved by filling the PDMS free volume with aluminum oxide (AlOx). To deposit AlOx inside PDMS, thermal atomic layer deposition (ALD) is employed. The PDMS/AlOx film thus produced has a 30 nm AlOx layer on the surface. Its water vapor transmission rate (WVTR) is 5.1 × 10-3 g m-2 d-1 at 45 °C and 65% relative humidity (RH). The activation energy of permeability with the PDMS/AlOx film for moisture permeation is determined to be 35.5 kJ mol-1. To investigate the moisture barrier capability of the PDMS/AlOx layer, (FAPbI3)0.85(MAPbBr3)0.15/spiro-OMeTAD/Au perovskite solar cells are fabricated, and encapsulated by the PDMS/AlOx film. To minimize the thermal damage to solar cells during ALD, AlOx deposition is performed at 95 °C. The solar cells exposed to 45 °C-65% RH for 300 h demonstrate less than a 5% drop in the power-conversion efficiency.

AB - A method for enhancing the moisture barrier property of polydimethylsiloxane (PDMS) polymer films is proposed. This is achieved by filling the PDMS free volume with aluminum oxide (AlOx). To deposit AlOx inside PDMS, thermal atomic layer deposition (ALD) is employed. The PDMS/AlOx film thus produced has a 30 nm AlOx layer on the surface. Its water vapor transmission rate (WVTR) is 5.1 × 10-3 g m-2 d-1 at 45 °C and 65% relative humidity (RH). The activation energy of permeability with the PDMS/AlOx film for moisture permeation is determined to be 35.5 kJ mol-1. To investigate the moisture barrier capability of the PDMS/AlOx layer, (FAPbI3)0.85(MAPbBr3)0.15/spiro-OMeTAD/Au perovskite solar cells are fabricated, and encapsulated by the PDMS/AlOx film. To minimize the thermal damage to solar cells during ALD, AlOx deposition is performed at 95 °C. The solar cells exposed to 45 °C-65% RH for 300 h demonstrate less than a 5% drop in the power-conversion efficiency.

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Development of moisture-proof polydimethylsiloxane/aluminum oxide film and stability improvement of perovskite solar cells using the film

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