Semi‐Transparent, Pixel‐Free Upconversion Goggles with Dual Audio‐Visual Communication
Abstract: The intractable brittleness and opacity of the crystalline semiconductor restrict the prospect of developing low‐cost imaging systems. Here, infrared visualization technologies are established with large‐area, semi‐transparent organic upconversion devices that bring high‐resolution invisible images into sight without photolithography. To exploit all photoinduced charge carriers, a monolithic device structure is proposed built on the infrared‐selective, single‐component charge generation layer of chloroaluminum phthalocyanine (ClAlPc) coupled to two visible light‐emitting layers manipulated with unipolar charges. Transient pump‐probe spectroscopy reveals that the ClAlPc‐based device exhibits an efficient charge dissociation process under forward bias. This process is indicated by the prompt and strong features of electroabsorption screening. Furthermore, by imposing the electric field, the ultrafast excited state dynamic suggests a prolonged charge carrier lifetime from the ClAlPc, which facilitates the charge utilization for upconversion luminance. For the first time, >30% of the infrared photons are utilized without photomultiplication strategies owing to the trivial spectrum overlap between ClAlPc and the emitter. In addition, the device can broadcast the acoustic signal by synchronizing the device frequency with the light source, which enables to operate it in dual audio‐visual mode. The work demonstrates the potential of upconversion devices for affordable infrared imaging in wearable electronics.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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Semi‐Transparent, Pixel‐Free Upconversion Goggles with Dual Audio‐Visual Communication ; day:22 ; month:09 ; year:2023 ; extent:10
Advanced science ; (22.09.2023) (gesamt 10)
- Creator
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Shih, Chun‐Jen
Lin, Chao‐Yang
Chen, Kai
Amin, Nurul Ridho Al
Luo, Dian
Hsu, I‐Sheng
Akbar, Abdul Khalik
Biring, Sajal
Lu, Chih‐Hsuan
Chen, Bo‐Han
Yang, Shang‐Da
Lee, Jiun‐Haw
Liu, Shun‐Wei
- DOI
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10.1002/advs.202302631
- URN
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urn:nbn:de:101:1-2023092315014950482684
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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14.08.2025, 10:45 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Shih, Chun‐Jen
- Lin, Chao‐Yang
- Chen, Kai
- Amin, Nurul Ridho Al
- Luo, Dian
- Hsu, I‐Sheng
- Akbar, Abdul Khalik
- Biring, Sajal
- Lu, Chih‐Hsuan
- Chen, Bo‐Han
- Yang, Shang‐Da
- Lee, Jiun‐Haw
- Liu, Shun‐Wei
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