[ORG-39]Structure engineering of porphyrin-based hole transporting materials for perovskite solar cells

Perovskite solar cells (PSCs) are a new type of organic-inorganic thin-film solar cells developed from dye-sensitized solar cells. Due to its high efficiency, low cost and easy preparation characteristics, perovskite solar cells have attracted the research interest of a huge number of scientific researchers and have achieved very significant achievements. From 2009 to the present, its light conversion efficiency has increased from 3.8% [1] Increased to 25.2% [2]. However, hole transport materials like Spiro-OMeTAD which was used mostly in perovskite solar cell often needed doping to increase its mobility, and this would decrease its stability, which was unfavorable for its scalable application.
Herein, four porphyrin-based hole transport materials (HTM) were designed, synthesized, and used in perovskite solar cell. Compared with traditional HTM Spiro-OMeTAD, they were more convenient to synthesize and non-doped. They got a comparable power conversion efficiency of 18.12%, which is just slightly lower than Spiro-based device (19.71%). At the same time, the device of based on these four new HTM could remain at least 80% of their efficiency after 31 days under ambient environment, while Spiro-based device degraded to 54% of its original efficiency.
Fig.

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[MAT-07]Dual visible and near-infrared persistent luminescence in Cr3+-doped zinc gallogermanate nanoparticles

Slide 1. Title slide
Slide 2. Introduction, ZGGO structure and potential applications
Slide 3. Synthesis method, XRD diffractogram, TEM images
Slide 4. Photoluminescence of undoped ZGGO sample and peak deconvolution
Slide 5. Photoluminescence and persistent luminescence spectra of ZGGO: Cr3+ sample
Slide 6. Tuning of ZGGO: Cr3+ persistent luminescence by Cr3+ concentration and persistent luminescence decays
Slide 7. Conclusions
Slide 8. Acknowledgments

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[INORG-30]Impressive near-infrared brightness and singlet oxygen generation from strategic lanthanide–porphyrin double-decker complexes in aqueous solution

A series of lanthanide-based double-decker complexes were prepared and characterized with different techniques, especially scanning tunneling microscopy, for determining their conformations. The Ln(III) sandwich structures equipped with side-chain feature superior near-infrared brightness and singlet oxygen generation ability which make them become promising theranostic bio-probes.

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[BIO-29]Development of NAD tagSeq for identification and characterization of NAD+-capped RNA

A new strategy called NAD tagSeq was developed to identify NAD-capped RNA. The strategy mainly contains three steps. Firstly, an enzyme called ADPRC was used to modify the NAD cap with a clickable group. Then CuAAC reaction was performed to ligate tag RNA onto the NAD cap. Finally, the tagged RNAs underwent library preparation and Nanopore direct RNA sequencing. The strategy enables direct sequencing of NAD-capped RNA, thus facilitating further analysis of the RNA structure and capping ratio.

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[BIO-07]A portable oligonucleotide-based microfluidic device for the detection of VEGF165 in a three-step suspended-droplet mode

We designed a G-quadruplex-based aptasensing platform for the sensitive and selective detection of VEGF165 in aqueous solution and red blood cell solution and could achieve a LOD down to picomolar levels using the conventional fluorometer. The platform could be adapted to our SD-based microfluidic device to allow easy sample introduction, flexible volume range and valve, electrode and light-free manipulation. We anticipate that this portable device could be potentially employed as a monitoring tool of VEGF165 for patients or medical institutes.

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[BIO-05]Cell-permeant fluorescent probes for imaging the activation of a signaling enzyme SARM1

Sterile Alpha and TIR Motif-containing 1 (SARM1) works as a main effector in axon degeneration through its NAD metabolizing activity, which is a potential drug target for many neurological disorders.1-2 Here we designed a series of fluorescent probes for labeling the intercellular enzymatic activity of SARM1. Among them, PC6 and PC11, showed excellent sensitivity and selectivity in vitro. Activity imaging documented for the first time that SARM1 activation precedes fragmentation by several hours. Our study provides a novel method for monitoring the activity of SARM1.

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