Digital Laser Micropainting for Reprogrammable Optoelectronic Applications
- Title
- Digital Laser Micropainting for Reprogrammable Optoelectronic Applications
- Author
- 홍석준
- Issue Date
- 2020-09
- Publisher
- WILEY-V C H VERLAG GMBH
- Citation
- ADVANCED FUNCTIONAL MATERIALS, v. 31, Issue. 1, Article no. 2006854, 8pp
- Abstract
- Structural coloration is closely related to the progress of innovative optoelectronic applications, but the absence of direct, on-demand, and rewritable coloration schemes has impeded advances in the relevant area, particularly including the development of customized, reprogrammable optoelectronic devices. To overcome these limitations, a digital laser micropainting technique, based on controlled thin-film interference, is proposed through direct growth of the absorbing metal oxide layer on a metallic reflector in the solution environment via a laser. A continuous-wave laser simultaneously performs two functions-a photothermal reaction for site-selective metal oxide layer growth and in situ real-time monitoring of its thickness-while the reflection spectrum is tuned in a broad visible spectrum according to the laser fluence. The scalability and controllability of the proposed scheme is verified by laser-printed painting, while altering the thickness via supplementary irradiation of the identical laser in the homogeneous and heterogeneous solutions facilitates the modification of the original coloration. Finally, the proof-of-concept bolometer device verifies that specific wavelength-dependent photoresponsivity can be assigned, erased, and reassigned by the successive application of the proposed digital laser micropainting technique, which substantiates its potential to offer a new route for reprogrammable optoelectronic applications.
- URI
- https://onlinelibrary.wiley.com/doi/full/10.1002/adfm.202006854https://repository.hanyang.ac.kr/handle/20.500.11754/164598
- ISSN
- 1616-301X; 1616-3028
- DOI
- 10.1002/adfm.202006854
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MECHANICAL ENGINEERING(기계공학과) > Articles
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