Stimuli-responsive solid-state emission from <italic>o</italic>-carborane–tetraphenylethene dyads induced by twisted intramolecular charge transfer in the crystalline state was demonstrated.

Abstract Smart responsive organic emitters, which exhibit tunable emission properties in response to external stimuli, can serve as a new generation of intelligent optoelectronic materials because their versatile applications, such multicolor displays, information encryption, visual sensing, and matter detection. In recent years, significant advancements have been made the development smart emitters. However, there is still lack systematic review that provides comprehensive insight into...

In the face of detection problems posed by complex textile texture backgrounds, different sizes, and types defects, commonly used object networks have limitations in handling target sizes. Furthermore, their stability anti-jamming capabilities are relatively weak. Therefore, when more diverse, false detections or missed likely to occur. order meet stringent requirements defect detection, we propose a novel AC-YOLOv5-based method. This method fully considers optical properties, distribution,...

Automatic vision-based defect detection on the mobile light guide plate (LGP) is a challenging task due to low contrast between and background, uneven brightness, complex gradient texture. An end-to-end multitask learning network architecture for of phone LGP proposed. First, main structure designed. The encoder part uses similar U-Net obtain multiscale features, feature fusion adopts interact with features. Second, segmentation head designed complete precise location each in an image by...

Purpose To evaluate the clinical performance of expanded non-invasive prenatal testing (NIPT-plus) and compare its effectiveness in screening for chromosomal aneuploidies with that NIPT. Methods Screening results, confirmatory invasive follow-up data from pregnant women who underwent either NIPT (6792 cases) or NIPT-Plus (5237 at Luohe Central Hospital, China, January 2019 to June 2023 were collected. The positive predictive value (PPV), sensitivity, specificity, other indicators different...

Abstract As one of the key components liquid crystal display, quality hot‐pressed light guide plate (LGP) directly affects display performance. To address challenges posed by complex background textures, diverse types defects, large variations in defect resolutions, and low contrast, this paper proposes a surface detection method for LGPs based on PR‐YOLOv9. The poly kernel inception network (PKINet) module is integrated replacing second convolution YOLOv9 backbone network, effectively...

Timely detection and handling of bearings with surface defects are crucial for ensuring the reliability mechanical devices. Bearing surfaces often exhibit complex machining textures residual oil, varying in type, shape, size. To tackle this issue, paper proposes an improved bearing defect model, Yolov8s-DDC. First, Depthwise Separable Convolution is introduced into backbone network, which not only reduces computational complexity number parameters but also enhances ability to capture spatial...

<italic>o</italic>-Carborane-based triphenylamine dyads were explored, with highly efficient emissions in the solid state, induced by intramolecular charge transfer (ICT).

Circularly polarized luminescence from a boron ketoiminate-based π-conjugated polymer was successfully realized at the unimolecular level <italic>via</italic> conformational locks that blocked intramolecular rotations.

Considering the characteristics of complex texture backgrounds, uneven brightness, varying defect sizes, and multiple types bearing surface images, a detection method for rings is proposed based on improved YOLOv5. First, replacing C3 module in backbone network with C2f can effectively reduce number parameters computational complexity, thereby improving speed accuracy network. Second, adding SPD into neck networks enhances their ability to process low-resolution small-object images. Next,...

Realizing a high luminescence dissymmetry factor ( <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:msub> <mml:mrow> <mml:mi>g</mml:mi> </mml:mrow> <mml:mtext>lum</mml:mtext> </mml:msub> </mml:math> ) is paramount yet challenging issue in the research field of circularly polarized (CPL). Here, we reported novel set organic conjugated systems with twisted intramolecular charge transfer (TICT) characteristics based on o -carborane-binaphthyl dyads composing...

Tuning the circularly polarized luminescence (CPL) is a paramount yet challenging issue in research field of chiral materials. Here, supramolecules were constructed with inducer LL-diphenylalanine (LPFF) and triphenyl-1,3,5-triazine-derived achiral molecule (DMAC-TRZ) to generate differentiated aggregates, giving rise tunable responses CPL. Specifically, well-defined supercrystallines had an exceptional superior CPL emission located at 485 nm large dissymmetry factor (glum) value as high...

To address the different forms and sizes of bearing collar surface defects, uneven distribution defect positions, complex backgrounds, we propose ESD-YOLOv5, an improved algorithm for full-surface detection. First, a hybrid attention module, ECCA, was constructed by combining efficient channel (ECA) mechanism coordinate (CA) mechanism, which introduced into YOLOv5 backbone network to enhance localization ability object features network. Second, original neck replaced Slim-neck, reduces...

Achieving color-tunable emission in single-component organic emitters with multistage stimuli-responsiveness is of vital significance for intelligent optoelectronic applications, but remains enormously challenging. Herein, we present an unprecedented example a smart emitter (DDOP) that simultaneously exhibits and multimode emissions. DDOP based on highly twisted amide-bridged donor-acceptor-donor structure has been found to facilitate intersystem crossing, form emissions, generate multiple...

Abstract Photothermal modulated excited conformations in traditional optoelectronic materials have been extensively investigated for the manipulation of emissive properties. However, photoinduced molecular synergetic conformational changes, which are promising controlling intramolecular energy transfer modes through orbital breaking, never explored. Herein, a novel o ‐carborane dyad composed carbazole units as electron donors and triazine derivatives acceptors is demonstrated to achieve...

Stimuli-responsive circularly polarized luminescence (CPL) was successfully achieved through fine-tuning the conformation of a perylenyl dyad by using external stimuli. Monomer CPL clearly detected from an inherent achiral monochromophore system in simple perylene-carbazole dyad, and concentration-dependent observed 'good solvent', giving excimer-like emission with peak maximum at 643 nm. Moreover, bands depended on aggregated state, which identical to changes THF-H2O system. It is...