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Highly Efficient and Stable Self-Powered Mixed Tin-Lead Perovskite Photodetector Used in Remote Wearable Health Monitoring Technology.
Liu, Fengcai; Liu, Kai; Rafique, Saqib; Xu, Zengyi; Niu, Wenqing; Li, Xiaoguo; Wang, Yifan; Deng, Liangliang; Wang, Jiao; Yue, Xiaofei; Li, Tao; Wang, Jun; Ayala, Paola; Cong, Chunxiao; Qin, Yajie; Yu, Anran; Chi, Nan; Zhan, Yiqiang.
Affiliation
  • Liu F; Center for Micro Nano Systems, School of Information Science and Technology (SIST), Fudan University, Shanghai, 200433, P. R. China.
  • Liu K; Center for Micro Nano Systems, School of Information Science and Technology (SIST), Fudan University, Shanghai, 200433, P. R. China.
  • Rafique S; Center for Micro Nano Systems, School of Information Science and Technology (SIST), Fudan University, Shanghai, 200433, P. R. China.
  • Xu Z; Key Laboratory for Information Science of Electromagnetic Waves (MoE), Department of Communication Science and Engineering, Fudan University, Shanghai, 200433, P. R. China.
  • Niu W; Key Laboratory for Information Science of Electromagnetic Waves (MoE), Department of Communication Science and Engineering, Fudan University, Shanghai, 200433, P. R. China.
  • Li X; Center for Micro Nano Systems, School of Information Science and Technology (SIST), Fudan University, Shanghai, 200433, P. R. China.
  • Wang Y; Key Laboratory for Information Science of Electromagnetic Waves (MoE), Department of Communication Science and Engineering, Fudan University, Shanghai, 200433, P. R. China.
  • Deng L; Center for Micro Nano Systems, School of Information Science and Technology (SIST), Fudan University, Shanghai, 200433, P. R. China.
  • Wang J; Center for Micro Nano Systems, School of Information Science and Technology (SIST), Fudan University, Shanghai, 200433, P. R. China.
  • Yue X; Center for Micro Nano Systems, School of Information Science and Technology (SIST), Fudan University, Shanghai, 200433, P. R. China.
  • Li T; Key Laboratory of Micro and Nano Photonic Structures (MOE), and Shanghai Ultra-precision Optical Manufacturing Engineering Research Center, Department of Optical Science and Engineering, Fudan University, Shanghai, 200433, P. R. China.
  • Wang J; Key Laboratory of Micro and Nano Photonic Structures (MOE), and Shanghai Ultra-precision Optical Manufacturing Engineering Research Center, Department of Optical Science and Engineering, Fudan University, Shanghai, 200433, P. R. China.
  • Ayala P; Faculty of Physics, University of Vienna, Vienna, 1090, Austria.
  • Cong C; Center for Micro Nano Systems, School of Information Science and Technology (SIST), Fudan University, Shanghai, 200433, P. R. China.
  • Qin Y; Center for Micro Nano Systems, School of Information Science and Technology (SIST), Fudan University, Shanghai, 200433, P. R. China.
  • Yu A; Center for Micro Nano Systems, School of Information Science and Technology (SIST), Fudan University, Shanghai, 200433, P. R. China.
  • Chi N; Key Laboratory for Information Science of Electromagnetic Waves (MoE), Department of Communication Science and Engineering, Fudan University, Shanghai, 200433, P. R. China.
  • Zhan Y; Center for Micro Nano Systems, School of Information Science and Technology (SIST), Fudan University, Shanghai, 200433, P. R. China.
Adv Sci (Weinh) ; 10(5): e2205879, 2023 Feb.
Article in En | MEDLINE | ID: mdl-36494090
ABSTRACT
Realization of remote wearable health monitoring (RWHM) technology for the flexible photodiodes is highly desirable in remote-sensing healthcare systems used in space stations, oceans, and forecasting warning, which demands high external quantum efficiency (EQE) and detectivity in NIR region. Traditional inorganic photodetectors (PDs) are mechanically rigid and expensive while the widely reported solution-processed mixed tin-lead (MSP) perovskite photodetectors (PPDs) exhibit a trade-off between EQE and detectivity in the NIR region. Herein, a novel functional passivating antioxidant (FPA) strategy has been introduced for the first time to simultaneously improve crystallization, restrain Sn2+ oxidization, and reduce defects in MSP perovskite films by multiple interactions between thiophene-2-carbohydrazide (TAH) molecules and cations/anions in MSP perovskite. The resultant solution-processed rigid mixed Sn-Pb PPD simultaneously achieves high EQE (75.4% at 840 nm), detectivity (1.8 × 1012 Jones at 840 nm), ultrafast response time (trise /tfall = 94 ns/97 ns), and improved stability. This work also highlights the demonstration of the first flexible photodiode using MSP perovskite and FPA strategy with remarkably high EQE (75% at 840 nm), and operational stability. Most importantly, the RWHM is implemented for the first time in the PIN MSP perovskite photodiodes to remotely monitor the heart rate of humans at rest and after-run conditions.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Adv Sci (Weinh) Year: 2023 Document type: Article
Fulltext
Add to My VHL
Print
XML
PubMed Links
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Adv Sci (Weinh) Year: 2023 Document type: Article