Photochromic Safety-Glass Based on Polyurethane Interlayer Film Blend with Perovskite Quantum Dot

Zhan, Siqi; Yang, Jiansong; Bo, Yanyan; Ding, Wenhe; Sun, Zhongliang; Liu, Hongyan; Wang, Shiwei; Zhang, Mingyao

doi:10.2139/ssrn.4369364

Cited by 2 publications

(3 citation statements)

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“…The long wavelength pass filters were widely used in optical instruments, spectroscopic instruments, electronics, semiconductors, medical treatment, optical communication, and life science, etc. Our study shows that perovskite QDGs have excellent absorption and transmission characteristics such as large absorbance at short wavelengths, high transmittance at long wavelengths, and excellent steepness at the transition region [38,39]. The absorption edge and emission peak are estimated in the visible range 400-700 nm.…”

Section: Introductionmentioning

confidence: 74%

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Cu2+ doped CsPb(Cl/Br)3 quantum dots glasses for high performance long wavelength pass filters in the blue-purple region

Song,

Yu,

Zhang

et al. 2024

Preprint

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The CsPb(Cl/Br)3 quantum dots (QDs) with high Cl content are difficult to precipitate in the glass matrix, which hiders the development of the long wavelength pass filter operating in blue-purple region. In this work, the Cu2+ doped CsPb(Cl/Br)3 QDs glasses have been fabricated in the borate glass matrix by melt quenching process. To increase the Cl content, high Cl/Br ratio is used, and a crucible cover is used during the melting process to reduce Cl volatilization. The transmittance (T%), optical density (OD), photoluminescence (PL), PL excitation (PLE) and PL decay have been evaluated. The working wavelength of filters has been extended from ~500 nm to 412 nm. Small amount Cu2+ of 0.005–0.3 mol % is used for PL quenching and meanwhile maintaining excellent properties in transmittance and OD. As Cu2+ concentration increases, the PL intensity is quenched and the PL lifetime is decreased for the CsPb(Cl/Br)3 QDs. Quenching mechanism is considered as energy dependent electron transfer (ET). The fabricated CsPb(Cl/Br)3 QD glasses can meet requirements for the long wavelength pass filters in the blue-purple region.

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Section: Introductionmentioning

confidence: 74%

“…Recently, the CsPbX3 QDs glasses have been reported for short wavelength shielding filters [38][39][40][41][42]. The optical density, steepness, and the maximum transmittance can be better than that of CdS/CdSe QDGs.…”

Section: Introductionmentioning

confidence: 99%

Cu2+ doped CsPb(Cl/Br)3 quantum dots glasses for high performance long wavelength pass filters in the blue-purple region

Song,

Yu,

Zhang

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

“…8 In order to tackle the problem of elevated encapsulation temperature in PU, Zhan et al proposed the incorporation of acrylic copolymer. 9 There are few reports on the effect of interlayer on laminated glass with different PU molecular structure.…”

Section: Introductionmentioning

confidence: 99%

Study on the effect of chain extenders on aliphatic polyurethane and its application

Ding,

Liu,

et al. 2024

J of Applied Polymer Sci

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Thermoplastic polyurethane (TPU) has been applied to high‐performance laminated glass depending on its high impact strength and bonding properties. The utilization of various polyurethane molecular structures in laminated glass is scarcely reported. The selection and application of chain extenders are crucial for TPU performance. In this work, aliphatic polyurethane film with high strength has been successfully synthesized, incorporating chain extender of poly(propylene glycol) bis(2‐aminopropyl ether) (PEA230). The films with melting point above 80°C were prepared by adjusting the proportion of dimethylglyoxime (DMG), while simultaneously monitoring the thermal behavior of the samples by DMA. Results indicate that combining PEA230 and DMG in a 1:1 molar ratio yields the hydrogen bonding degree of 85.77%, toughness of 43.14 MJ m3, and shear stress of 1.8 MPa for the polyurethane film. Subsequently, laminated glasses based on the polyurethane film with different thermal properties were constructed successfully, and their super strong impact resistance was confirmed through falling ball impact experiments.

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Photochromic Safety-Glass Based on Polyurethane Interlayer Film Blend with Perovskite Quantum Dot

Cited by 2 publications

References 0 publications

Cu2+ doped CsPb(Cl/Br)3 quantum dots glasses for high performance long wavelength pass filters in the blue-purple region

Cu2+ doped CsPb(Cl/Br)3 quantum dots glasses for high performance long wavelength pass filters in the blue-purple region

Study on the effect of chain extenders on aliphatic polyurethane and its application

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