Near-infrared photodetectors based on CH3NH3PbI3 perovskite single crystals for bioimaging applications

2022 ◽  
Author(s):  
Ji Yu ◽  
Jie Zheng ◽  
Hongyu Chen ◽  
Ning Tian ◽  
Lin Li ◽  
...  
Keyword(s):  
Single Crystal ◽  
Single Crystals ◽  
Near Infrared ◽  
Infrared Photodetectors

Near-infrared (NIR) bioimaging has been realized by an NIR photodetector based on CH3NH3PbI3 perovskite single crystal.

High-performance near-infrared photodetectors based on C3N quantum dots integrated with single-crystal graphene

2021 ◽  
Author(s):  
Yun Zhao ◽  
Xiaoqiang Feng ◽  
Menghan Zhao ◽  
Xiaohu Zheng ◽  
Zhiduo Liu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Electric Field ◽  
Single Crystal ◽  
High Performance ◽  
Near Infrared ◽  
Fast Response ◽  
Local Electric Field ◽  
Infrared Photodetectors ◽  
Photocurrent Response

Employing C3N QD-integrated single-crystal graphene, photodetectors exhibited a distinct photocurrent response at 1550 nm. The photocurrent map revealed that the fast response derive from C3N QDs that enhanced the local electric field near graphene.

Synthesis of Submillimeter-Scale Single Crystal Stannous Sulfide Nanoplates for Visible and Near-Infrared Photodetectors with Ultrahigh Responsivity

2018 ◽  
Vol 4 (7) ◽  
pp. 1800154 ◽  
Author(s):  
Qiu Li ◽  
Aixiang Wei ◽  
Jianting Lu ◽  
Lili Tao ◽  
Yibin Yang ◽  
...  
Keyword(s):  
Single Crystal ◽  
Near Infrared ◽  
Infrared Photodetectors

Planar visible–near infrared photodetectors based on organic–inorganic hybrid perovskite single crystal bulks

2020 ◽  
Vol 53 (41) ◽  
pp. 414003
Author(s):  
Juan Xin ◽  
Qiang Wang ◽  
Jinhua Li ◽  
Kegang Wang ◽  
Wenqiu Deng ◽  
...  
Keyword(s):  
Single Crystal ◽  
Near Infrared ◽  
Infrared Photodetectors ◽  
Inorganic Hybrid ◽  
Hybrid Perovskite

Near-infrared photodetectors based on mercury indium telluride single crystals

2007 ◽  
Author(s):  
Xiaolei Zhang ◽  
Weiguo Sun ◽  
Zhengxiong Lu ◽  
Liang Zhang ◽  
Lan Zhao ◽  
...  
Keyword(s):  
Single Crystals ◽  
Near Infrared ◽  
Infrared Photodetectors ◽  
Indium Telluride

scholarly journals Absorption structure of Rh4+ in doped Bi12TiO20

2015 ◽  
Vol 2 (1) ◽  
pp. 48-52
Author(s):  
P. Petkova ◽  
K. Boubaker
Keyword(s):  
Absorption Coefficient ◽  
Single Crystal ◽  
Single Crystals ◽  
Effective Mass ◽  
Oscillator Strength ◽  
Spectral Region ◽  
Near Infrared ◽  
Impurity Band ◽  
Infrared Spectral Region ◽  
Infrared Spectral

AbstractThe absorption coefficient of Bi12TiO20:Rh single crystals is measured in the spectral region 600-950 nm. The oscillator strength f and the transition moment of the impurity band Q are calculated in the near infrared spectral region. The effective mass of doped single crystal has been determined also.

scholarly journals Thin MAPb0.5Sn0.5I3 Perovskite Single Crystals for Sensitive Infrared Light Detection

2022 ◽  
Vol 9 ◽  
Author(s):  
Jinming Wu ◽  
Yongqiang Zhang ◽  
Shuang Yang ◽  
Zhaolai Chen ◽  
Wei Zhu
Keyword(s):  
Single Crystal ◽  
Single Crystals ◽  
Near Infrared ◽  
High Sensitivity ◽  
Fast Response ◽  
Low Noise ◽  
Infrared Light ◽  
Light Illumination ◽  
Lead Iodide ◽  
Methylammonium Lead Iodide

Metal halide perovskite single-crystal detectors have attracted increasing attention due to the advantages of low noise, high sensitivity, and fast response. However, the narrow photoresponse range of widely investigated lead-based perovskite single crystals limit their application in near-infrared (NIR) detection. In this work, tin (Sn) is incorporated into methylammonium lead iodide (MAPbI3) single crystals to extend the absorption range to around 950 nm. Using a space-confined strategy, MAPb0.5Sn0.5I3 single-crystal thin films with a thickness of 15 μm is obtained, which is applied for sensitive NIR detection. The as-fabricated detectors show a responsivity of 0.514 A/W and a specific detectivity of 1.4974×1011 cmHz1/2/W under 905 nm light illumination and –1V. Moreover, the NIR detectors exhibit good operational stability (∼30000 s), which can be attributed to the low trap density and good stability of perovskite single crystals. This work demonstrates an effective way for sensitive NIR detection.

Near infrared photodetectors based on sub-gap absorption in organohalide perovskite single crystals

2016 ◽  
Vol 10 (6) ◽  
pp. 1047-1053 ◽  
Author(s):  
Qianqian Lin ◽  
Ardalan Armin ◽  
Paul L. Burn ◽  
Paul Meredith
Keyword(s):  
Single Crystals ◽  
Near Infrared ◽  
Infrared Photodetectors

scholarly journals High-performance visible to near-infrared photodetectors by using (Cd,Zn)Te single crystal

2019 ◽  
Vol 27 (6) ◽  
pp. 8935 ◽  
Author(s):  
Bing Ren ◽  
Jijun Zhang ◽  
Meiyong Liao ◽  
Jian Huang ◽  
Liwen Sang ◽  
...  
Keyword(s):  
Single Crystal ◽  
High Performance ◽  
Near Infrared ◽  
Infrared Photodetectors

The observation of defects on (100) CdTe surfaces by chemical etching

1992 ◽  
Vol 50 (2) ◽  
pp. 1424-1425
Author(s):  
M.E. Lee
Keyword(s):  
Single Crystal ◽  
Grain Boundaries ◽  
Single Crystals ◽  
Chemical Etching ◽  
Crystalline Perfection ◽  
Crystalline Defects ◽  
High Incidence ◽  
Crystallographic Defects ◽  
Cdznte Substrates ◽  
Device Technology

The crystalline perfection of bulk CdTe substrates plays an important role in their use in infrared device technology. The application of chemical etchants to determine crystal polarity or the density and distribution of crystallographic defects in (100) CdTe is not well understood. The lack of data on (100) CdTe surfaces is a result of the apparent difficulty in growing (100) CdTe single crystal substrates which is caused by a high incidence of twinning. Many etchants have been reported to predict polarity on one or both (111) CdTe planes but are considered to be unsuitable as defect etchants. An etchant reported recently has been considered to be a true defect etchant for CdTe, MCT and CdZnTe substrates. This etchant has been reported to reveal crystalline defects such as dislocations, grain boundaries and inclusions in (110) and (111) CdTe. In this study the effect of this new etchant on (100) CdTe surfaces is investigated.The single crystals used in this study were (100) CdTe as-cut slices (1mm thickness) from Bridgman-grown ingots.

Mounting an individual submicrometer sized single crystal

1996 ◽  
Vol 211 (6) ◽  
Author(s):  
R. B. Neder ◽  
M. Burghammer ◽  
Th. Grasl ◽  
H. Schulz
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Single Crystal ◽  
Single Crystals ◽  
High Vacuum ◽  
Nanometer Resolution ◽  
Micro Manipulator ◽  
Scanning Electron

AbstractWe developed a new micro manipulator for mounting individual sub-micrometer sized single crystals within a scanning electron microscope. The translations are realized via a commercially available piezomicroscope, adapted for high vacuum usage and realize nanometer resolution. With this novel instrument it is routinely possible to mount individual single crystals with sizes down to 0.1

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