Self-Crack-Filled Graphene Films by Metallic Nanoparticles for High-Performance Graphene Heterojunction Solar Cells

Po Hsun Ho; Yi Ting Liou; Chien Hsun Chuang; Shih Wei Lin; Chi Yang Tseng; Di Yan Wang; Chia Chun Chen; Wen Yi Hung; Cheng Yen Wen; Chun Wei Chen

doi:10.1002/adma.201404843

Self-Crack-Filled Graphene Films by Metallic Nanoparticles for High-Performance Graphene Heterojunction Solar Cells

Po Hsun Ho, Yi Ting Liou, Chien Hsun Chuang, Shih Wei Lin, Chi Yang Tseng, Di Yan Wang, Chia Chun Chen, Wen Yi Hung, Cheng Yen Wen, Chun Wei Chen

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

55 Citations (Scopus)

Abstract

A novel approach for fabricating large-area crack-filled grapheme (CFG) films was reported, of which the intrinsic topological cracks in graphene are filled with Au nanoparticles through a simple reduction-oxidation reaction between the Cu substrate and the metal precursor solution. The CFG films were employed as a transparent electrode in fabricating graphene/Si Schottky junction solar cells. The CFG films exhibited superior electrical properties as a transparent electrode, showing substantial improvement in both the sheet resistance and series contact resistance compared with conventional as-grown grapheme films. A high-performance graphene/Si Schottky junction solar cell based on the CFG film showed a promising PCE of 12.3% and a high FF close to 0.8 because of the low series resistance at the heterojunction between graphene and a semiconductor. The CFG films in which the graphene cracks were filled by Au nanoparticles have immense potential for integration into the future industrial production of large-area, high-quality, graphene-based transparent electrodes or electronic devices.

Original language	English
Pages (from-to)	1724-1729
Number of pages	6
Journal	Advanced Materials
Volume	27
Issue number	10
DOIs	https://doi.org/10.1002/adma.201404843
Publication status	Published - 2015 Jan 1
Externally published	Yes

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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Self-Crack-Filled Graphene Films by Metallic Nanoparticles for High-Performance Graphene Heterojunction Solar Cells. / Ho, Po Hsun; Liou, Yi Ting; Chuang, Chien Hsun; Lin, Shih Wei; Tseng, Chi Yang; Wang, Di Yan; Chen, Chia Chun; Hung, Wen Yi; Wen, Cheng Yen; Chen, Chun Wei.

In: Advanced Materials, Vol. 27, No. 10, 01.01.2015, p. 1724-1729.

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

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abstract = "A novel approach for fabricating large-area crack-filled grapheme (CFG) films was reported, of which the intrinsic topological cracks in graphene are filled with Au nanoparticles through a simple reduction-oxidation reaction between the Cu substrate and the metal precursor solution. The CFG films were employed as a transparent electrode in fabricating graphene/Si Schottky junction solar cells. The CFG films exhibited superior electrical properties as a transparent electrode, showing substantial improvement in both the sheet resistance and series contact resistance compared with conventional as-grown grapheme films. A high-performance graphene/Si Schottky junction solar cell based on the CFG film showed a promising PCE of 12.3% and a high FF close to 0.8 because of the low series resistance at the heterojunction between graphene and a semiconductor. The CFG films in which the graphene cracks were filled by Au nanoparticles have immense potential for integration into the future industrial production of large-area, high-quality, graphene-based transparent electrodes or electronic devices.",

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