Waveguide Photodetector Based on Perovskite Single-Crystal Heterojunction DOI

Zhen Yu Zhang,

Guo Ping Wang

ACS Applied Electronic Materials, Journal Year: 2024, Volume and Issue: 6(11), P. 8437 - 8447

Published: Oct. 19, 2024

Perovskite single-crystal sheet (SCS) lateral-structured photodetector typically needs to guide the signal light in free space SCS surface for photoelectric conversion realize photodetection. However, device performance this working mode is highly dependent on state of active layer. To overcome potential issue, study puts forward a strategy MAPbBr3-MAPbI3 heterojunction waveguide (HWG), which MAPbBr3 utilized as (WG) structure couple far-field into confined near-field and propagates it layer planar WG, directly exciting internal lattices MAPbI3 SCS, without taking account state. The loss rate 6 dB/mm, its optimal can be increased by 60 times compared that when guided mode. Additionally, based visible transparency water insolubility PbBr2, also verified feasibility PbBr2-MAPbI3 HWG devices. Despite suboptimal structural geometry PbBr2 wire cluster leading an 11.3 encapsulated with silicone sealant demonstrates considerable stability, decaying only 7% after being immersed 100 h. findings suggest constructed SCS-HWG configuration provides feasible architecture high-performance photodetectors.

Language: Английский

Perovskite nanowires-based graphene plasmonic waveguides with low loss and low gain threshold DOI

Juqin Zhang,

Ziyi Guan,

Kang Ma

et al.

Diamond and Related Materials, Journal Year: 2023, Volume and Issue: 140, P. 110540 - 110540

Published: Oct. 21, 2023

Language: Английский

Citations

13
Optimized Growth and Manipulation of Light–Matter Interaction in Stabilized Halide Perovskite Nanowire Array DOI Creative Commons
Neena Prasad,

Avigail Leybovich,

Achiad Goldreich

et al.

Advanced Optical Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 30, 2025

Abstract Halide perovskite nanowires (HP‐NWs) exhibit fascinating optical properties, making them attractive for advanced technologies. However, instability and lack of an effective synthetic protocol limit their commercialization. To address this, nanoporous anodized aluminum oxide (AAO) metamaterial is used as templates the growth CsPbBr 3 NW arrays. AAO functions a template stabilizing medium. The array exhibits strong light‐trapping ability, pore geometric features (pore radius‐ R distance between pores‐ d ) can potentially enhance light‐matter interactions (LMI). impact on LMI within AAO/CsPbBr system using theoretical finite difference time domain (FDTD) simulations demonstrated first time. Optimal observed with = 25 nm 50 nm. Ligand‐free synthesis arrays via spin‐coating, drop‐casting, inverse temperature crystallization (ITC) reported. While spin‐coating drop‐casting results in poor filling, modified ITC method achieves >90% filling significant lengths. These findings highlight potential protecting CsPbBr3 addressing challenges HPs other semiconductor This study provides key insights advances array‐based devices renewable energy applications.

Language: Английский

Citations

0
Waveguide-integrated ultra-stable perovskite single-crystal photodetector DOI
Zhenyu Zhang, Guo Ping Wang

Science China Technological Sciences, Journal Year: 2025, Volume and Issue: 68(2)

Published: Jan. 10, 2025

Language: Английский

Citations

0
Polarization‐directed nanophotonic routers based on two‐dimensional inorganic molecular crystals DOI Creative Commons
Jiacheng Yao, Xinliang Feng, Tingting Zhang

et al.

InfoMat, Journal Year: 2024, Volume and Issue: 6(8)

Published: April 25, 2024

Abstract Photonic and plasmonic hybrid nanostructures are the key solution for integrated nanophotonic circuits with ultracompact size but relative low loss. However, poor tunability modulability of conventional waveguides makes them cumbersome optical multiplexing. Here we make use two‐dimensional molecular crystal, α‐Sb 2 O 3 as a dielectric waveguide via total internal reflection, which shows polarization‐sensitive modulation propagating beams due to its large polarization mode dispersion. Both experiments simulations performed verify such concept. These Sb nanoflakes can be coupled nanowires form beam splitters routers easily modulated by changing incidence. It thus provides robust, exploitable tunable platform on‐chip nanophotonics. image

Language: Английский

Citations

3
Finite-element modeling of a perovskite-based symmetric plasmonic waveguide with deep-subwavelength confinement and high figure of merit DOI
Peilan Ma, Xuemei Hu, Da Teng

et al.

Materials Today Communications, Journal Year: 2023, Volume and Issue: 37, P. 107518 - 107518

Published: Nov. 6, 2023

Language: Английский

Citations

5
Waveguide Photodetector Based on Perovskite Single-Crystal Heterojunction DOI

Zhen Yu Zhang,

Guo Ping Wang

ACS Applied Electronic Materials, Journal Year: 2024, Volume and Issue: 6(11), P. 8437 - 8447

Published: Oct. 19, 2024

Perovskite single-crystal sheet (SCS) lateral-structured photodetector typically needs to guide the signal light in free space SCS surface for photoelectric conversion realize photodetection. However, device performance this working mode is highly dependent on state of active layer. To overcome potential issue, study puts forward a strategy MAPbBr3-MAPbI3 heterojunction waveguide (HWG), which MAPbBr3 utilized as (WG) structure couple far-field into confined near-field and propagates it layer planar WG, directly exciting internal lattices MAPbI3 SCS, without taking account state. The loss rate 6 dB/mm, its optimal can be increased by 60 times compared that when guided mode. Additionally, based visible transparency water insolubility PbBr2, also verified feasibility PbBr2-MAPbI3 HWG devices. Despite suboptimal structural geometry PbBr2 wire cluster leading an 11.3 encapsulated with silicone sealant demonstrates considerable stability, decaying only 7% after being immersed 100 h. findings suggest constructed SCS-HWG configuration provides feasible architecture high-performance photodetectors.

Language: Английский

Citations

1