Recent progress in near-infrared light-harvesting nanosystems for photocatalytic applications

Wang, Yichen; Wang, Lu; Liu, Zhaosu; Ye, Enyi; Pan, Jia; Guan, Guijian; Liu, Yupeng

doi:10.1016/j.apcata.2022.118836

Cited by 18 publications

(5 citation statements)

References 125 publications

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“…The design of photocatalysts for wide-rang light collection, from ultraviolet to NIR regions, is an efficient way to accomplish the prac tical use of photocatalysis, since solar light contains around 50% near-infrared (NIR) ligh The full utilization of sunlight is valuable in terms of efficient use of energy, and, further more, near-infrared rays are highly permeable, making them convenient for use as an en vironmental remediation material. The study of NIR-responsive materials has so far fo cused on sensitization using NIR-responsive substances including dye molecules and black phosphorus, the surface plasmon resonance effect, up-conversion, and material with narrow band gaps that act as NIR harvesters [34][35][36].…”

Section: And Conjugatedmentioning

confidence: 99%

Synthesis and Photocatalytic Activity of Novel Polycyclopentadithiophene

Zulkifli,

Ito,

Uno

et al. 2023

Polymers

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A novel π-conjugated polymer based on cyclopentadithiophene (CPDT) and poly(4,4′]-(((4Hcyclopenta[2,1-b:3,4-b′]dithiophene-4,4-diyl)bis(ethane-2,1-diyl))bis(oxy))bis(4-oxobutanoic acid)) (PCPDT-CO2H) was prepared as a sparingly soluble material. The generation of hydroxyl radicals from PCPDT-CO2H in water was confirmed by using coumarin as a hydroxyl radical indicator. Furthermore, PCPDT-CO2H was found to catalyze the oxidative hydroxylation of arylboronic acid and the oxidation of benzaldehyde, indicating that PCPDT-CO2H can be a promising candidate for metal-free and 100% organic heterogeneous photocatalysts.

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Section: And Conjugatedmentioning

confidence: 99%

Synthesis and Photocatalytic Activity of Novel Polycyclopentadithiophene

Zulkifli,

Ito,

Uno

et al. 2023

Polymers

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“…Photons in the near infrared II region (NIR-II, 1000–1700 nm) have shown a lot of promise in biomedical applications and clinical translation such as precise intraoperative tumor resection. − This is because compared to the NIR-I region (NIR-I, 700–1000 nm), NIR-II photons have low scattering, deep tissue penetration, and high imaging resolution. , In the solar spectrum, more than 15% of photons are located in the NIR-II region . However, these NIR-II photons with low energy are unfavorable for photon harvesting and transformation. , Photon upconversion is the conversion of low-energy photons (long wavelengths) into high-energy photons (short wavelengths), which provides crucial insights into the use of NIR-II photons. , For instance, in conjunction with photon upconversion, it is possible to surpass the Shockley Queisser limit and increase the photovoltaic conversion efficiency of single-junction solar cells. ,, Thus, the development of efficient NIR-II to visible photon upconversion has consistently been prioritized as an outstanding objective in optics, photocatalysis, and biophotonics.…”

Section: Introductionmentioning

confidence: 99%

“…6 However, these NIR-II photons with low energy are unfavorable for photon harvesting and transformation. 7,8 Photon upconversion is the conversion of lowenergy photons (long wavelengths) into high-energy photons (short wavelengths), which provides crucial insights into the use of NIR-II photons. 9,10 For instance, in conjunction with photon upconversion, it is possible to surpass the Shockley Queisser limit and increase the photovoltaic conversion efficiency of single-junction solar cells.…”

Section: ■ Introductionmentioning

confidence: 99%

Near Infrared-II Excited Triplet Fusion Upconversion with Anti-Stokes Shift Approaching the Theoretical Limit

Jiang,

Miao,

Zhang

et al. 2024

J. Am. Chem. Soc.

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The anti-Stokes shift represents the capacity of photon upconversion to convert low-energy photons to highenergy photons. Although triplet exciton-mediated photon upconversion presents outstanding performance in solar energy harvesting, photoredox catalysis, stereoscopic 3D printing, and disease therapeutics, the interfacial multistep triplet exciton transfer leads to exciton energy loss to suppress the anti-Stokes shift. Here, we report near infrared-II (NIR-II) excitable triplet exciton-mediated photon upconversion using a hybrid photosensitizer consisting of lead sulfide quantum dots (PbS QDs) and new surface ligands of thiophene-substituted diketopyrrolopyrrole (Th-DPP). Under 1064 nm excitation, this photon upconversion revealed a record-corrected upconversion efficiency of 0.37% (normalized to 100%), with the anti-Stokes shift (1.07 eV) approaching the theoretical limit (1.17 eV). The observation of this unexpected result is due to our discovery of the presence of a weak interaction between the sulfur atom on Th-DPP and Pb 2+ on the PbS QDs surface, facilitating electronic coupling between PbS QDs and Th-DPP, such that the realization of triplet exciton transfer efficiency is close to 100% even when the energy gap is as small as 0.04 eV. With this premise, this photon upconversion as a photocatalyst enables the production of standing organic gel via photopolymerization under 1064 nm illumination, displaying NIR-II photon-driven photoredox catalysis. This research not only establishes the foundation for enhancing the performance of NIR-II excitable photonic upconversion but also promotes its development in photonics and photoredox catalysis.

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“…The solar spectrum consists of ultraviolet (UV) (∼5%; <400 nm), visible light (∼45%; 400 nm–700 nm), and near infra-red (NIR) (∼50%; >700 nm) contributions. 4 Each spectral light range, when harnessed using appropriate light responsive catalytic materials, can help promote CO 2 reduction. The efficient and direct use of sunlight alleviates the reliance on external energy inputs.…”

Section: Introductionmentioning

confidence: 99%