Journal article
Ultrahighly Photosensitive and Highly Stretchable Rippled Structure Photodetectors Based on Perovskite Nanocrystals and Graphene
ACS applied electronic materials, v 1(8), pp 1517-1526
01 Aug 2019
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Stretchable optoelectronic devices are the need of the hour when it comes to making present day technologies user-friendly. These devices when placed conformably on the human skin or any other artificial intelligence products must function in all their capacities to get a durable and highly sensitive device performance. Stretchable photodetectors are the core fundamental constituents that fall under the umbrella of flexible optoelectronic devices. Although a significant amount of research has been reported on stretchable photodetectors, good performance still remains a challenge. Nanometer-sized methylammonium lead bromide ((MA)-PbBr3) perovskite nanocrystals can significantly emit and absorb light in the visible spectrum. With high quantum yield and stable optical and electronic properties, when they are subjected to mechanically tunable two-dimensional (2D) composites, we obtain better performance from stretchable optoelectronic devices. Here, a hybrid photodetector composed of perovskite nanocrystals and graphene of rippled geometry is demonstrated, where a thin film of photon-absorbing perovskite nanocrystals is placed on rippled graphene that contributes to a photoresponsivity on the order of similar to 6 x 10(5) A W-1. The large photoresponsivity value places this hybrid stretchable device in the highest position among devices with similar functionality. It is found that the photoresponsivity of the perovskite nanocrystals and graphene hybrid rippled structure photodetector is strain tunable with a stretchability up to 100%. In addition, the hybrid rippled structure photodetector has wearability and durability. All of these superior functionalities lead the way toward fabricating stretchable optoelectronic devices suitable for applications in the fields of biomedicine, defense systems, fire detection, and flexible display panels.
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Details
- Title
- Ultrahighly Photosensitive and Highly Stretchable Rippled Structure Photodetectors Based on Perovskite Nanocrystals and Graphene
- Creators
- Ying-Huan Chen - Natl Taiwan Univ, Dept Phys, Taipei 106, TaiwanMonika Kataria - National Taiwan UniversityHung Lin - National Taiwan UniversityChristy Roshini Paul Inbaraj - National Tsing Hua UniversityYu-Ming Liao - National Taiwan UniversityHan Wen Hu - National Taiwan UniversityTing-Jia Chang - National Taiwan UniversityCheng-Hsin Lu - Drexel UniversityWei-Heng Shih - Drexel UniversityWei-Hua Wang - Acad Sinica, Inst Atom & Mol Sci, Taiwan Int Grad Program, Mol Sci & Technol Program, Taipei 115, TaiwanYang-Fang Chen - National Taiwan University
- Publication Details
- ACS applied electronic materials, v 1(8), pp 1517-1526
- Publisher
- American Chemical Society; Washington, DC
- Number of pages
- 19
- Grant note
- MOST 107-3017-F-002-001 / Ministry of Science and Technology in Taiwan; Ministry of Science and Technology, Taiwan 107L9006 / "Advanced Research Centre for Green Materials Science and Technology" from Featured Area Research Centre Program
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000496315000021
- Scopus ID
- 2-s2.0-85085468909
- Other Identifier
- 991019167539404721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Engineering, Electrical & Electronic
- Materials Science, Multidisciplinary