Self-powered, large-area, and flexible photodetectors based on reduced graphene oxide
碩士 === 中原大學 === 電子工程研究所 === 107 === Two-dimensional graphene with outstanding properties including flexible, high conductivity, high transparency, and wide-band absorption has been applied for optoelectronic materials and devices such as photodetectors. However, single layer graphene photodetectors...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2019
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| Online Access: | http://ndltd.ncl.edu.tw/handle/6hhz53 |
| Summary: | 碩士 === 中原大學 === 電子工程研究所 === 107 === Two-dimensional graphene with outstanding properties including flexible, high conductivity, high transparency, and wide-band absorption has been applied for optoelectronic materials and devices such as photodetectors. However, single layer graphene photodetectors suffer from low responsivities mainly due to low absorption and small detection area. Moreover, transferred process of single layer graphene on substrate faces the issue of corrugation and aggregation. Self-powered photodetectors was realized by spin-coating reduced graphene oxide (rGO) onto an ITO coated flexible PET substrate. The device could work without power because of the work function difference between ITO and Ag. The proposed method reduces the fabrication cost and can be applied to various flexible rGO based devices.
In this study, solution-processed rGO on ITO/PET substrate with Ag top contact to construct cost-effective photodetectors were proposed. These devices show flexible and self-powered characteristics which have great potential for future low-power and wearable devices.
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