Narrowband Near-Infrared Photodetectors Based on Perovskite Waveguide Devices

Liu, Sen; Ding, Nan; Wu, Yanjie; Zi, Lu; Wang, Yue; Hu, Junhua; Xie, Tianyu; Zhou, Donglei; Bai, Xue; Xu, Wen; Song, Hongwei

doi:10.1021/acs.jpclett.2c01301

Cited by 7 publications

(5 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The EQE max value is one of the highest ones among the NIR NPDs ever reported (Table S3). ,,,− Although the thick perovskite layer weakens the intensity of incident NIR light (Figure S5), the maximum EQE values in the NIR region of PD-Br-IT4F present almost the same NIR response as the PM6:IT4F-based OPD. PD-MA-Y6 and PD-FA-C9 even present higher NIR EQE values than the corresponding OPDs (Figure S12).…”

Section: Resultsmentioning

confidence: 97%

Visible-Blind Narrowband Near-Infrared Photodetector for Precise Real-Time Photoplethysmography Measurement

Chen,

Liu,

Zhang

et al. 2023

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

The visible-blind narrowband photodetector (NPD) with spectral selective sensitivity to near-infrared (NIR) light is an important technology in the field of cardiovascular health assessment. However, the biological information carried by NIR light constantly changes signals with small amplitude and fast speed, which puts high requirements on the performance of detectors. Herein, visible-blind NIR NPDs were constructed by integrating solution-processable films of perovskite, CuSCN, and organic semiconductors. The NIR response was provided by the organic bulk heterojunction (OBHJ) film with a narrow band gap. A thick perovskite layer was applied to screen the incident visible light and suppress the leakage current in the dark state. CuSCN with a high LUMO level blocked the extraction of the visible-light-induced free electrons. The width of the response window was restricted by adjusting the band gap of the perovskite and the donor/acceptor ratio of the OBHJ film. The optimized NIR NPD exhibits a comprehensive performance including visible-blind response, a tunable response spectrum, a high responsivity/detectivity, and a short response time. In practical photoplethysmography measurements, the detector can record the human heart rate in real time through a noninvasive technique and precisely monitor the whole cardiac cycle, which provides an effective method for early detection of cardiovascular symptoms for timely diagnosis and treatment.

show abstract

Section: Resultsmentioning

confidence: 97%

Visible-Blind Narrowband Near-Infrared Photodetector for Precise Real-Time Photoplethysmography Measurement

Chen,

Liu,

Zhang

et al. 2023

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

show abstract

“…44,57 The carrier mobility, optical absorption rate, and bandgap of BP are between that of graphene and TMDCs, but its air stability is comparatively poor, hindering its widespread application. 39,60 Therefore, further efforts are needed to expand and research more emerging 2DMs, such as Bi 2 O 2 Se, Te, and SnP 2 Se 6 mentioned in this review, as well as MXenes, 257,258 few-layer InSe, 259,260 perovskite nanosheets, [261][262][263][264] and other 2DMs with unique physical properties. Additionally, building more novel heterostructures by combining materials with distinct physical properties can lead to even better optoelectronic performance.…”

Section: Discussionmentioning

confidence: 99%

On-chip two-dimensional material-based waveguide-integrated photodetectors

He,

Wang,

Peng

et al. 2024

J. Mater. Chem. C

View full text Add to dashboard Cite

show abstract

“…Perovskites are an interesting class of compounds with intriguing physical properties. They can be used in different applications, including sensors [1], waveguides [2], laser frequency doubling, high colossal magnetoresistance, actuators, capacitors, thermoelectric generators [3], superconductivity [4], and fuel cells [5]. A deviation from the standard formula or atomic arrangement can drastically change its structure as well as its properties.…”

Section: Introductionmentioning

confidence: 99%

Mechanical, electronic, and optoelectronic properties of RE³⁺MoN₃ (RE³⁺ = La, Ce, Nd, Pr, Sm) perovskites

Sohail,

Muhammad,

Khesro

et al. 2023

Int J of Quantum Chemistry

View full text Add to dashboard Cite

The electronic structure, mechanical, and optical properties of RE3+MoN3 (RE3+ = La, Ce, Pr, Nd, Sm) perovskites were calculated by the Full Potential method (FP‐LAPW) based on density functional theory. The unit cell structure (space group ) was optimized using the PBE‐GGA functional. Furthermore, the calculated tolerance factor is found in the permissible range for a cubic perovskite. Elastic properties of these compounds confirm the mechanical stability, anisotropic, ductile, metallic, stiffer, and rigid nature. The electronic structure calculations were then performed using the mBJ functional followed by hybrid functional & Hubbard correction U. The electron charge density plots revealed ionic and covalent bonding in RE3+MoN3. The total density of states and band structure calculations display metallic behavior for the RE3+MoN3 compounds. Maximum refractive index (4.8), reflectivity (.72), and optical conductivity (8.21) were obtained for LaMoN3 perovskites. Different optical properties have been calculated; therefore, we anticipate the identification of highly useful optoelectronic applications.

show abstract

Narrowband Near-Infrared Photodetectors Based on Perovskite Waveguide Devices

Cited by 7 publications

References 43 publications

Visible-Blind Narrowband Near-Infrared Photodetector for Precise Real-Time Photoplethysmography Measurement

Visible-Blind Narrowband Near-Infrared Photodetector for Precise Real-Time Photoplethysmography Measurement

On-chip two-dimensional material-based waveguide-integrated photodetectors

Mechanical, electronic, and optoelectronic properties of RE³⁺MoN₃ (RE³⁺ = La, Ce, Nd, Pr, Sm) perovskites

Contact Info

Product

Resources

About

Narrowband Near-Infrared Photodetectors Based on Perovskite Waveguide Devices

Cited by 7 publications

References 43 publications

Visible-Blind Narrowband Near-Infrared Photodetector for Precise Real-Time Photoplethysmography Measurement

Visible-Blind Narrowband Near-Infrared Photodetector for Precise Real-Time Photoplethysmography Measurement

On-chip two-dimensional material-based waveguide-integrated photodetectors

Mechanical, electronic, and optoelectronic properties of RE3+MoN3 (RE3+ = La, Ce, Nd, Pr, Sm) perovskites

Contact Info

Product

Resources

About

Mechanical, electronic, and optoelectronic properties of RE³⁺MoN₃ (RE³⁺ = La, Ce, Nd, Pr, Sm) perovskites