Journal article
Wrinkled 2D Materials: A Versatile Platform for Low-Threshold Stretchable Random
Advanced materials (Weinheim), v 29(43)
20 Nov 2017
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
A stretchable, flexible, and bendable random laser system capable of lasing in a wide range of spectrum will have many potential applications in next-generation technologies, such as visible-spectrum communication, super-bright solid-state lighting, biomedical studies, fluorescence, etc. However, producing an appropriate cavity for such a wide spectral range remains a challenge owing to the rigidity of the resonator for the generation of coherent loops. 2D materials with wrinkled structures exhibit superior advantages of high stretchability and a suitable matrix for photon trapping in between the hill and valley geometries compared to their flat counterparts. Here, the intriguing functionalities of wrinkled reduced graphene oxide, single-layer graphene, and few-layer hexagonal boron nitride, respectively, are utilized to design highly stretchable and wearable random laser devices with ultralow threshold. Using methyl-ammonium lead bromide perovskite nanocrystals (PNC) to illustrate the working principle, the lasing threshold is found to be approximate to 10 mu J cm(-2), about two times less than the lowest value ever reported. In addition to PNC, it is demonstrated that the output lasing wavelength can be tuned using different active materials such as semiconductor quantum dots. Thus, this study is very useful for the future development of high-performance wearable optoelectronic devices.
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Details
- Title
- Wrinkled 2D Materials: A Versatile Platform for Low-Threshold Stretchable Random
- Creators
- Han-Wen Hu - National Taiwan UniversityGolam Haider - National Taiwan UniversityYu-Ming Liao - National Taiwan UniversityPradip Kumar Roy - National Taiwan UniversityRini Ravindranath - National Taiwan UniversityHuan-Tsung Chang - National Taiwan UniversityCheng-Hsin Lu - Drexel UniversityChang-Yang Tseng - National Taiwan Ocean UniversityTai-Yung Lin - National Taiwan Ocean UniversityWei-Heng Shih - Drexel UniversityYang-Fang Chen - National Taiwan University
- Publication Details
- Advanced materials (Weinheim), v 29(43)
- Publisher
- Wiley
- Number of pages
- 10
- Grant note
- Ministry of Education of the Republic of China; Ministry of Education, Taiwan Ministry of Science and Technology; Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000415142100016
- Other Identifier
- 991019167441304721
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InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Chemistry, Multidisciplinary
- Chemistry, Physical
- Materials Science, Multidisciplinary
- Nanoscience & Nanotechnology
- Physics, Applied
- Physics, Condensed Matter