Achieving high efficiency and stability in inverted organic solar cells fabricated by laminated gold leaf as top electrodes

Nur Tahirah Razali; Itaru Osaka; Kazuo Takimiya; Varun Vohra; Hideyuki Murata

doi:10.7567/APEX.7.111602

Achieving high efficiency and stability in inverted organic solar cells fabricated by laminated gold leaf as top electrodes

Nur Tahirah Razali, Itaru Osaka, Kazuo Takimiya, Varun Vohra, Hideyuki Murata

SCI - Chemistry

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

7 Citations (Scopus)

Abstract

We investigated inverted bulk heterojunction solar cells fabricated with gold (Au) leaf as laminated top electrodes. We demonstrate that the Au leaf can be successfully transferred from a supporting poly(ethylene terephthalate) (PET) substrate to the surface of poly(3,4-ethylenedioxythiophene): poly(styrene sulfonate) (PEDOT:PSS) because PEDOT:PSS has a sufficiently higher work of adhesion than PET. Under optimized lamination conditions, the contact between the Au leaf and the PEDOT:PSS becomes homogeneous, and the power conversion efficiency (PCE) improves. When a naphtho[1,2- c:5,6-c′]bis[1,2,5]thiadiazole-based polymer is used as the p-type semiconductor, the PCE reaches 5.07%. The laminated devices exhibit excellent stability comparable to that of evaporated devices.

Original language	English
Pages (from-to)	111602
Number of pages	1
Journal	Applied Physics Express
Volume	7
Issue number	11
DOIs	https://doi.org/10.7567/APEX.7.111602
Publication status	Published - 2014 Nov 1

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title = "Achieving high efficiency and stability in inverted organic solar cells fabricated by laminated gold leaf as top electrodes",

abstract = "We investigated inverted bulk heterojunction solar cells fabricated with gold (Au) leaf as laminated top electrodes. We demonstrate that the Au leaf can be successfully transferred from a supporting poly(ethylene terephthalate) (PET) substrate to the surface of poly(3,4-ethylenedioxythiophene): poly(styrene sulfonate) (PEDOT:PSS) because PEDOT:PSS has a sufficiently higher work of adhesion than PET. Under optimized lamination conditions, the contact between the Au leaf and the PEDOT:PSS becomes homogeneous, and the power conversion efficiency (PCE) improves. When a naphtho[1,2- c:5,6-c′]bis[1,2,5]thiadiazole-based polymer is used as the p-type semiconductor, the PCE reaches 5.07%. The laminated devices exhibit excellent stability comparable to that of evaporated devices.",

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T1 - Achieving high efficiency and stability in inverted organic solar cells fabricated by laminated gold leaf as top electrodes

AU - Razali, Nur Tahirah

AU - Osaka, Itaru

AU - Takimiya, Kazuo

AU - Vohra, Varun

AU - Murata, Hideyuki

PY - 2014/11/1

Y1 - 2014/11/1

N2 - We investigated inverted bulk heterojunction solar cells fabricated with gold (Au) leaf as laminated top electrodes. We demonstrate that the Au leaf can be successfully transferred from a supporting poly(ethylene terephthalate) (PET) substrate to the surface of poly(3,4-ethylenedioxythiophene): poly(styrene sulfonate) (PEDOT:PSS) because PEDOT:PSS has a sufficiently higher work of adhesion than PET. Under optimized lamination conditions, the contact between the Au leaf and the PEDOT:PSS becomes homogeneous, and the power conversion efficiency (PCE) improves. When a naphtho[1,2- c:5,6-c′]bis[1,2,5]thiadiazole-based polymer is used as the p-type semiconductor, the PCE reaches 5.07%. The laminated devices exhibit excellent stability comparable to that of evaporated devices.

AB - We investigated inverted bulk heterojunction solar cells fabricated with gold (Au) leaf as laminated top electrodes. We demonstrate that the Au leaf can be successfully transferred from a supporting poly(ethylene terephthalate) (PET) substrate to the surface of poly(3,4-ethylenedioxythiophene): poly(styrene sulfonate) (PEDOT:PSS) because PEDOT:PSS has a sufficiently higher work of adhesion than PET. Under optimized lamination conditions, the contact between the Au leaf and the PEDOT:PSS becomes homogeneous, and the power conversion efficiency (PCE) improves. When a naphtho[1,2- c:5,6-c′]bis[1,2,5]thiadiazole-based polymer is used as the p-type semiconductor, the PCE reaches 5.07%. The laminated devices exhibit excellent stability comparable to that of evaporated devices.

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Achieving high efficiency and stability in inverted organic solar cells fabricated by laminated gold leaf as top electrodes

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