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논문 기본 정보

자료유형
학술저널
저자정보
N. Bakhshizadeh (University of Waterloo) R. S. Tarighat (University of Waterloo) S. Sivoththaman (University of Waterloo)
저널정보
한국전기전자재료학회 Transactions on Electrical and Electronic Materials Transactions on Electrical and Electronic Materials 제21권 제6호
발행연도
2020.1
수록면
594 - 598 (5page)

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Printable electrodes will play an important role in future fl exible electronics in photovoltaic, displays, and sensor devices. Novel materials such as nanocomposites can be attractive as electrode materials in such devices. Work function is an important parameter in the design of device structures for optimal performance. However, defi nition of work function of nanocomposite materials is complicated due to their non-homogeneity compared to single phase materials. In this study, an effective work function of a novel screen-printable graphene-decorated nanocomposite is presented. Two methods were used to determine the eff ective work function. The fi rst method relies on the tunneling current in a conductor?insulator?conductor structure with the nanocomposite functioning as one of the conductors, while the second method measures the work function of the nanocomposite at the interface with vacuum using ultraviolet photoemission spectroscopy. Values measured using the two methods are in a fairly good agreement. The diff erence is believed to be due to the heterogeneous nature of this nanocomposite which invites for the defi nition of an eff ective value for the work function, which will be a key parameter in the design of practical devices with nanocomposite electrodes.

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