Mechanically driven light-generator with high durability

Soon Moon Jeong; Seongkyu Song; Soo Keun Lee; Byeongdae Choi

doi:10.1063/1.4791689

Mechanically driven light-generator with high durability

Soon Moon Jeong, Seongkyu Song, Soo Keun Lee, Byeongdae Choi

Daegu Gyeongbuk Institute of Science and Technology

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

201 Scopus citations

Abstract

Mechanically activated luminescence from solids (mechanoluminescence) is a classical optical phenomenon induced in a substance when stressed or cleaved. However, no practical application has been realized due to its low luminescent intensity and lack of reproducibility. We demonstrate highly bright and durable mechanoluminescent flexible composite films with a brightness of ∼120 cd/m² and durability over ∼100 000 repeated mechanical stresses by using a combination of copper-doped zinc sulfide (ZnS:Cu) particles and polydimethylsiloxane. Furthermore, the possibility of mechanoluminescent color-tuning by changing the repetitive stress rate on the composite films is also suggested. These findings can open a window for developing smart systems and opto-mechanical devices.

Original language	English
Article number	051110
Journal	Applied Physics Letters
Volume	102
Issue number	5
DOIs	https://doi.org/10.1063/1.4791689
State	Published - 4 Feb 2013

Bibliographical note

Funding Information:
This work was supported by the basic research program (13-NB-02) through the Daegu Gyeongbuk Institute of Science and Technology (DGIST), funded by the Ministry of Education, Science and Technology (MEST) of Korea.

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title = "Mechanically driven light-generator with high durability",

abstract = "Mechanically activated luminescence from solids (mechanoluminescence) is a classical optical phenomenon induced in a substance when stressed or cleaved. However, no practical application has been realized due to its low luminescent intensity and lack of reproducibility. We demonstrate highly bright and durable mechanoluminescent flexible composite films with a brightness of ∼120 cd/m2 and durability over ∼100 000 repeated mechanical stresses by using a combination of copper-doped zinc sulfide (ZnS:Cu) particles and polydimethylsiloxane. Furthermore, the possibility of mechanoluminescent color-tuning by changing the repetitive stress rate on the composite films is also suggested. These findings can open a window for developing smart systems and opto-mechanical devices.",

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T1 - Mechanically driven light-generator with high durability

AU - Moon Jeong, Soon

AU - Song, Seongkyu

AU - Lee, Soo Keun

AU - Choi, Byeongdae

N1 - Funding Information: This work was supported by the basic research program (13-NB-02) through the Daegu Gyeongbuk Institute of Science and Technology (DGIST), funded by the Ministry of Education, Science and Technology (MEST) of Korea.

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Y1 - 2013/2/4

N2 - Mechanically activated luminescence from solids (mechanoluminescence) is a classical optical phenomenon induced in a substance when stressed or cleaved. However, no practical application has been realized due to its low luminescent intensity and lack of reproducibility. We demonstrate highly bright and durable mechanoluminescent flexible composite films with a brightness of ∼120 cd/m2 and durability over ∼100 000 repeated mechanical stresses by using a combination of copper-doped zinc sulfide (ZnS:Cu) particles and polydimethylsiloxane. Furthermore, the possibility of mechanoluminescent color-tuning by changing the repetitive stress rate on the composite films is also suggested. These findings can open a window for developing smart systems and opto-mechanical devices.

AB - Mechanically activated luminescence from solids (mechanoluminescence) is a classical optical phenomenon induced in a substance when stressed or cleaved. However, no practical application has been realized due to its low luminescent intensity and lack of reproducibility. We demonstrate highly bright and durable mechanoluminescent flexible composite films with a brightness of ∼120 cd/m2 and durability over ∼100 000 repeated mechanical stresses by using a combination of copper-doped zinc sulfide (ZnS:Cu) particles and polydimethylsiloxane. Furthermore, the possibility of mechanoluminescent color-tuning by changing the repetitive stress rate on the composite films is also suggested. These findings can open a window for developing smart systems and opto-mechanical devices.

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DO - 10.1063/1.4791689

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VL - 102

JO - Applied Physics Letters

JF - Applied Physics Letters

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ER -

Mechanically driven light-generator with high durability

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