Self-powered flexible persistent displays for trajectory recognition

Junlu Sun; Qiya Tao; Qilin Hua; Wei Zhang; Juan Liao; Chuntai Liu; Caofeng Pan; Chong Xin Shan; Lin Dong

doi:10.26599/NR.2025.94907951

Self-powered flexible persistent displays for trajectory recognition

Junlu Sun
, Qiya Tao
, Qilin Hua
, Wei Zhang
, Juan Liao
, Chuntai Liu
, Caofeng Pan^*
, Chong Xin Shan
, Lin Dong^*

^*Corresponding author for this work

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

Abstract

Self-powered display systems that integrate alternating current electroluminescence (ACEL) devices with triboelectric nanogenerators (TENGs) have shown great promise in human-machine interaction, smart displays, and security communications within the Internet of Things (IoT). However, their development has been significantly limited by undesirable flickering, which arises from the pulsed output characteristics of TENGs. Here, high-performance persistent phosphors ((Ca_0.25Sr_0.75)S:Eu) are incorporated into the ZnS:Cu-based ACEL devices to overcome this limitation, achieving an extended afterglow lifetime of 81 s and a sustained red emission lasting over 200 s. By integrating with TENGs, a self-powered persistent display system is realized that maintains bright red-emission for over 15 s. The varying afterglow intensities post power-off can distinguish directional movement (forward or backward), enabling motion trajectory recording and recognition, as demonstrated using floor-mounted TENGs to drive persistent display arrays. This strategy offers a new pathway for advanced self-powered display systems and broadens their application potential in the IoT landscape.

Original language	English
Article number	94907951
Journal	Nano Research
Volume	18
Issue number	11
DOIs	https://doi.org/10.26599/NR.2025.94907951
Publication status	Published - Nov 2025
Externally published	Yes

Keywords

alternating current electroluminescence (ACEL)
persistent displays
self-powered
trajectory recognition

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10.26599/NR.2025.94907951

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title = "Self-powered flexible persistent displays for trajectory recognition",

abstract = "Self-powered display systems that integrate alternating current electroluminescence (ACEL) devices with triboelectric nanogenerators (TENGs) have shown great promise in human-machine interaction, smart displays, and security communications within the Internet of Things (IoT). However, their development has been significantly limited by undesirable flickering, which arises from the pulsed output characteristics of TENGs. Here, high-performance persistent phosphors ((Ca0.25Sr0.75)S:Eu) are incorporated into the ZnS:Cu-based ACEL devices to overcome this limitation, achieving an extended afterglow lifetime of 81 s and a sustained red emission lasting over 200 s. By integrating with TENGs, a self-powered persistent display system is realized that maintains bright red-emission for over 15 s. The varying afterglow intensities post power-off can distinguish directional movement (forward or backward), enabling motion trajectory recording and recognition, as demonstrated using floor-mounted TENGs to drive persistent display arrays. This strategy offers a new pathway for advanced self-powered display systems and broadens their application potential in the IoT landscape.",

keywords = "alternating current electroluminescence (ACEL), persistent displays, self-powered, trajectory recognition",

author = "Junlu Sun and Qiya Tao and Qilin Hua and Wei Zhang and Juan Liao and Chuntai Liu and Caofeng Pan and Shan, \{Chong Xin\} and Lin Dong",

note = "Publisher Copyright: {\textcopyright} The Author(s) 2025. Published by Tsinghua University Press.",

year = "2025",

month = nov,

doi = "10.26599/NR.2025.94907951",

language = "English",

volume = "18",

journal = "Nano Research",

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AU - Sun, Junlu

AU - Tao, Qiya

AU - Hua, Qilin

AU - Zhang, Wei

AU - Liao, Juan

AU - Liu, Chuntai

AU - Pan, Caofeng

AU - Shan, Chong Xin

AU - Dong, Lin

N1 - Publisher Copyright: © The Author(s) 2025. Published by Tsinghua University Press.

PY - 2025/11

Y1 - 2025/11

N2 - Self-powered display systems that integrate alternating current electroluminescence (ACEL) devices with triboelectric nanogenerators (TENGs) have shown great promise in human-machine interaction, smart displays, and security communications within the Internet of Things (IoT). However, their development has been significantly limited by undesirable flickering, which arises from the pulsed output characteristics of TENGs. Here, high-performance persistent phosphors ((Ca0.25Sr0.75)S:Eu) are incorporated into the ZnS:Cu-based ACEL devices to overcome this limitation, achieving an extended afterglow lifetime of 81 s and a sustained red emission lasting over 200 s. By integrating with TENGs, a self-powered persistent display system is realized that maintains bright red-emission for over 15 s. The varying afterglow intensities post power-off can distinguish directional movement (forward or backward), enabling motion trajectory recording and recognition, as demonstrated using floor-mounted TENGs to drive persistent display arrays. This strategy offers a new pathway for advanced self-powered display systems and broadens their application potential in the IoT landscape.

AB - Self-powered display systems that integrate alternating current electroluminescence (ACEL) devices with triboelectric nanogenerators (TENGs) have shown great promise in human-machine interaction, smart displays, and security communications within the Internet of Things (IoT). However, their development has been significantly limited by undesirable flickering, which arises from the pulsed output characteristics of TENGs. Here, high-performance persistent phosphors ((Ca0.25Sr0.75)S:Eu) are incorporated into the ZnS:Cu-based ACEL devices to overcome this limitation, achieving an extended afterglow lifetime of 81 s and a sustained red emission lasting over 200 s. By integrating with TENGs, a self-powered persistent display system is realized that maintains bright red-emission for over 15 s. The varying afterglow intensities post power-off can distinguish directional movement (forward or backward), enabling motion trajectory recording and recognition, as demonstrated using floor-mounted TENGs to drive persistent display arrays. This strategy offers a new pathway for advanced self-powered display systems and broadens their application potential in the IoT landscape.

KW - alternating current electroluminescence (ACEL)

KW - persistent displays

KW - self-powered

KW - trajectory recognition

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DO - 10.26599/NR.2025.94907951

M3 - Article

AN - SCOPUS:105023582594

SN - 1998-0124

VL - 18

JO - Nano Research

JF - Nano Research

IS - 11

M1 - 94907951

ER -

Self-powered flexible persistent displays for trajectory recognition

Abstract

Keywords

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