GaOx@GaN Nanowire Arrays on Flexible Graphite Paper with Tunable Persistent Photoconductivity
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Related Research Unit(s)
Detail(s)
Original language | English |
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Pages (from-to) | 41916–41925 |
Journal / Publication | ACS Applied Materials and Interfaces |
Volume | 13 |
Issue number | 35 |
Online published | 27 Aug 2021 |
Publication status | Published - 8 Sept 2021 |
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Abstract
Flexible optoelectronic synaptic devices that functionally imitate the neural behavior with tunable optoelectronic characteristics are crucial to the development of advanced bioinspired neural networks. In this work, amorphous oxide-decorated GaN nanowire arrays (GaOx@GaN NWAs) are prepared on flexible graphite paper. A GaOx@GaN NWA-based flexible device has tunable persistent photoconductivity (PPC) and shows a conversible fast/slow decay process (SDP). Photoconductivity can be modulated by single or double light pulses with different illumination powers and biases. PPC gives rise to the high-performance SDP such as a long decay time of 2.3 × 105 s. The modulation mechanism is proposed and discussed. Our results reveal an innovative and efficient strategy to produce decorated NWAs on a flexible substrate with tunable optoelectronic properties and exhibit potential for flexible neuromorphic system applications.
Research Area(s)
- flexible device, GaN, nanowire array, optoelectronic synapse, persistent photoconductivity
Citation Format(s)
GaOx@GaN Nanowire Arrays on Flexible Graphite Paper with Tunable Persistent Photoconductivity. / Ji, Yu-Hang; Gao, Qin; Huang, An-Ping et al.
In: ACS Applied Materials and Interfaces, Vol. 13, No. 35, 08.09.2021, p. 41916–41925.
In: ACS Applied Materials and Interfaces, Vol. 13, No. 35, 08.09.2021, p. 41916–41925.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review