Enhanced long wavelength omnidirectional photoresponses in photonic-structured perovskite photodetectors

Ning Li; Weixia Lan; Ying Suet Lau; Linfeng Cai; Ali Asgher Syed; Fu Rong Zhu

doi:10.1039/c9tc02149c

Enhanced long wavelength omnidirectional photoresponses in photonic-structured perovskite photodetectors

Ning Li
, Weixia Lan
, Ying Suet Lau
, Linfeng Cai
, Ali Asgher Syed
, Fu Rong Zhu^*

^*Corresponding author for this work

Research output: Contribution to journal › Journal article › peer-review

21 Citations (Scopus)

59 Downloads (Pure)

Abstract

Enhanced long wavelength omnidirectional photoresponses in organo-lead triiodide (CH₃NH₃PbI₃) perovskite photodetectors (PDs) have been realized by incorporating a 1-D photonic-structured hole transporting layer (HTL), created by nanoimprint lithography. Our theoretical simulation supports the experimental results, revealing that photonic-structured CH₃NH₃PbI₃ PDs enable efficient light absorption. Photonic-structured perovskite PDs also exhibit faster transient photoresponses as compared to a planar control PD over the wavelength range from UV to NIR. The photoresponsivity of photonic-structured PDs is less dependent on the angle of incident light, arising from the improved light in-coupling over a broader angle range of incident light. In particular, photonic-structured CH₃NH₃PbI₃ PDs with unique features such as polarization-insensitive and enhanced long wavelength omnidirectional photoresponses are very attractive for application in high performance near infrared light detection.

Original language	English
Pages (from-to)	9573-9580
Number of pages	8
Journal	Journal of Materials Chemistry C
Volume	7
Issue number	31
Early online date	10 Jul 2019
DOIs	https://doi.org/10.1039/c9tc02149c
Publication status	Published - 21 Aug 2019

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@article{c0213fcb447f4522b0cdc0332ed7e6fd,

title = "Enhanced long wavelength omnidirectional photoresponses in photonic-structured perovskite photodetectors",

abstract = "Enhanced long wavelength omnidirectional photoresponses in organo-lead triiodide (CH3NH3PbI3) perovskite photodetectors (PDs) have been realized by incorporating a 1-D photonic-structured hole transporting layer (HTL), created by nanoimprint lithography. Our theoretical simulation supports the experimental results, revealing that photonic-structured CH3NH3PbI3 PDs enable efficient light absorption. Photonic-structured perovskite PDs also exhibit faster transient photoresponses as compared to a planar control PD over the wavelength range from UV to NIR. The photoresponsivity of photonic-structured PDs is less dependent on the angle of incident light, arising from the improved light in-coupling over a broader angle range of incident light. In particular, photonic-structured CH3NH3PbI3 PDs with unique features such as polarization-insensitive and enhanced long wavelength omnidirectional photoresponses are very attractive for application in high performance near infrared light detection.",

author = "Ning Li and Weixia Lan and Lau, \{Ying Suet\} and Linfeng Cai and Syed, \{Ali Asgher\} and Zhu, \{Fu Rong\}",

note = "Funding Information: This work was financially supported by the Research Grants Council, University Grants Committee of Hong Kong Special Administrative Region, China, the General Research Fund (GRF/ 12302817), the Collaborative Research Fund (C5037-18GF), and the Hong Kong Baptist University Inter-institutional Collaborative Research Scheme (RC-ICRS/15-16/04).",

year = "2019",

month = aug,

day = "21",

doi = "10.1039/c9tc02149c",

language = "English",

volume = "7",

pages = "9573--9580",

journal = "Journal of Materials Chemistry C",

issn = "2050-7526",

publisher = "Royal Society of Chemistry",

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T1 - Enhanced long wavelength omnidirectional photoresponses in photonic-structured perovskite photodetectors

AU - Li, Ning

AU - Lan, Weixia

AU - Lau, Ying Suet

AU - Cai, Linfeng

AU - Syed, Ali Asgher

AU - Zhu, Fu Rong

N1 - Funding Information: This work was financially supported by the Research Grants Council, University Grants Committee of Hong Kong Special Administrative Region, China, the General Research Fund (GRF/ 12302817), the Collaborative Research Fund (C5037-18GF), and the Hong Kong Baptist University Inter-institutional Collaborative Research Scheme (RC-ICRS/15-16/04).

PY - 2019/8/21

Y1 - 2019/8/21

N2 - Enhanced long wavelength omnidirectional photoresponses in organo-lead triiodide (CH3NH3PbI3) perovskite photodetectors (PDs) have been realized by incorporating a 1-D photonic-structured hole transporting layer (HTL), created by nanoimprint lithography. Our theoretical simulation supports the experimental results, revealing that photonic-structured CH3NH3PbI3 PDs enable efficient light absorption. Photonic-structured perovskite PDs also exhibit faster transient photoresponses as compared to a planar control PD over the wavelength range from UV to NIR. The photoresponsivity of photonic-structured PDs is less dependent on the angle of incident light, arising from the improved light in-coupling over a broader angle range of incident light. In particular, photonic-structured CH3NH3PbI3 PDs with unique features such as polarization-insensitive and enhanced long wavelength omnidirectional photoresponses are very attractive for application in high performance near infrared light detection.

AB - Enhanced long wavelength omnidirectional photoresponses in organo-lead triiodide (CH3NH3PbI3) perovskite photodetectors (PDs) have been realized by incorporating a 1-D photonic-structured hole transporting layer (HTL), created by nanoimprint lithography. Our theoretical simulation supports the experimental results, revealing that photonic-structured CH3NH3PbI3 PDs enable efficient light absorption. Photonic-structured perovskite PDs also exhibit faster transient photoresponses as compared to a planar control PD over the wavelength range from UV to NIR. The photoresponsivity of photonic-structured PDs is less dependent on the angle of incident light, arising from the improved light in-coupling over a broader angle range of incident light. In particular, photonic-structured CH3NH3PbI3 PDs with unique features such as polarization-insensitive and enhanced long wavelength omnidirectional photoresponses are very attractive for application in high performance near infrared light detection.

UR - https://www.scopus.com/pages/publications/85070540469

U2 - 10.1039/c9tc02149c

DO - 10.1039/c9tc02149c

M3 - Journal article

AN - SCOPUS:85070540469

SN - 2050-7526

VL - 7

SP - 9573

EP - 9580

JO - Journal of Materials Chemistry C

JF - Journal of Materials Chemistry C

IS - 31

ER -

Enhanced long wavelength omnidirectional photoresponses in photonic-structured perovskite photodetectors

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