scholarly journals Recent development of near-infrared photoacoustic probes based on small-molecule organic dye

2021 ◽  
Author(s):  
Chonglu Li ◽  
Chang Liu ◽  
Yifan Fan ◽  
Xin Ma ◽  
Yibei Zhan ◽  
...  
Keyword(s):  
Small Molecule ◽  
Near Infrared ◽  
Organic Dye

In this review, we discuss the recent development of near-infrared photoacoustic probes based on small molecule dyes, which focus on their “always on” and “activatable” form in biomedicine.

Mannose modified zwitterionic polyester conjugated second near-infrared organic fluorophore for targeted photothermal therapy

2021 ◽  
Author(s):  
Jiaxu Li ◽  
Liuchun Zheng ◽  
Chuncheng Li ◽  
Yaonan Xiao ◽  
Jiajian Liu ◽  
...  
Keyword(s):  
Small Molecule ◽  
Photothermal Therapy ◽  
Near Infrared ◽  
Organic Dye ◽  
Clinical Treatment ◽  
Available P ◽  
Cancer Resistance ◽  
Organic Fluorophore ◽  
Huge Challenge

Cancer resistance has been the huge challenge to clinical treatment. Photothermal therapy of second near-infrared (NIR-II) organic dye small molecule has been used to conquer cancer resistance. However, the available...

An A–D–A′–D–A type small molecule acceptor with wide absorption spectrum and near-infrared absorption

2018 ◽  
Vol 2 (12) ◽  
pp. 2333-2339 ◽  
Author(s):  
Junhui Miao ◽  
Junxia Wang ◽  
Bin Meng ◽  
Jun Liu ◽  
Lixiang Wang
Keyword(s):  
Absorption Spectrum ◽  
Small Molecule ◽  
Infrared Absorption ◽  
Near Infrared

We report a new A–D–A′–D–A type small molecule acceptor with a wide absorption spectrum spanning from 300 nm to 900 nm and a bandgap of only 1.39 eV.

High-detectivity panchromatic photodetectors for the near infrared region based on a dimeric porphyrin small molecule

2018 ◽  
Vol 6 (13) ◽  
pp. 3341-3345 ◽  
Author(s):  
Liangang Xiao ◽  
Song Chen ◽  
Xuebin Chen ◽  
Xiaobin Peng ◽  
Yong Cao ◽  
...  
Keyword(s):  
Small Molecule ◽  
Near Infrared ◽  
Spectral Response ◽  
Infrared Region ◽  
Zero Bias ◽  
Near Infrared Region

A dimeric porphyrin-based photodetector shows a strong spectral response at 1000 nm with a detectivity of 1013Jones at zero bias.

scholarly journals Investigation of optical and photoelectric properties of poly (ohydroxyamide) sensitized by phthalocyanine as a perspective material for solar cells

2020 ◽  
Vol 220 ◽  
pp. 01019
Author(s):  
Elvira Fazalova ◽  
Konstantin Kochunov ◽  
Elena Bodyago ◽  
Georgii Konoplev ◽  
Nikolay Mukhin ◽  
...  
Keyword(s):  
Thin Films ◽  
Solar Radiation ◽  
Near Infrared ◽  
Wavelength Region ◽  
Organic Dye ◽  
Glass Substrates ◽  
Photoelectric Properties ◽  
Zinc Phthalocyanines ◽  
Infrared Spectral ◽  
Potential Use

Optical and photoelectric properties of poly (ohydroxyamide) (PHA) sensitized with zinc phthalocyanines were investigated in the visible and near infrared spectral regions. The structures were deposited on glass substrates by centrifugation and subsequent drying of a PHA film without thermal annealing. Optical spectra revealed characteristic absorption peaks of phthalocyanine in the longer wavelength region at 620-640 nm and 680-700 nm; absorption of the PHA matrix monotonously increases to the shorter wavelengths starting from 700 nm. Measurements of the photocurrent under irradiation with a high-power LED at a wavelength 630 nm showed photoconductivity related to the organic dye; photoconductivity also was observed while irradiated at 540 nm, presumably due to the absorption of PHA matrix. For non-sensitized (dye-free) PHA films no detectable photocurrents were produced by 630 nm irradiation. It was shown that introducing of phthalocyanines significantly improves optical absorption and photoconductivity of PHA thin films at the wavelengths, where the maximum in the spectral distribution of solar radiation lies. It was concluded that phthalocyanine-sensitized PHA has the potential use as a photosensitive organic material for solar applications, for example in developing composite organicinorganic structures with ferroelectrics.

Supersensitization of CdS Quantum Dots with a Near-Infrared Organic Dye: Toward the Design of Panchromatic Hybrid-Sensitized Solar Cells

ACS Nano ◽  
2011 ◽  
Vol 5 (11) ◽  
pp. 9238-9245 ◽  
Author(s):  
Hyunbong Choi ◽  
Roxana Nicolaescu ◽  
Sanghyun Paek ◽  
Jaejung Ko ◽  
Prashant V. Kamat
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Near Infrared ◽  
Organic Dye ◽  
Cds Quantum Dots ◽  
Sensitized Solar Cells

scholarly journals Tuning the near infrared II emitting wavelength of small molecule dyes by single atom alteration

2020 ◽  
Vol 56 (4) ◽  
pp. 523-526 ◽  
Author(s):  
Kun Qian ◽  
Chunrong Qu ◽  
Xiangyu Ma ◽  
Hao Chen ◽  
Martha Kandawa-Schulz ◽  
...  
Keyword(s):  
Small Molecule ◽  
Near Infrared ◽  
Fluorescence Emission ◽  
Red Shift ◽  
Single Atom

Replacing donors’ S with O and Se will red shift NIR-II dyes’ fluorescence emission and offer good clarity/brightness for imaging.

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