Efficient control of crystallization and defects perovskite films are the key factors toward performance stability solar cells (PSCs), especially for preparation large-area PSCs devices. Herein, we directly embedded surfactant-like monoammonium zinc porphyrin (ZnP) compound into methylammonium (MA+) lead iodide film to blade-coat uniform as large 16 cm2. Efficiency high 18.3% blade-coating (1.96 cm2) with ZnP was unprecedentedly achieved, while best efficiency fabricated small-area (0.1...

Abstract The poor UV, thermal, and interfacial stability of perovskite solar cells (PSCs) makes it highly challenging for their technological application, has drawn increasing attention to resolving the above issues. In nature, plants generally sustain long exposure UV illumination without damage, which is attributed presence organic materials acting as sunscreens. Inspired by natural phenomenon, a plant sunscreen, sinapoyl malate, an ester derivative sinapic acid, employed modify surface...

Defects within the grain boundaries (GBs) of halide perovskite films make fabrication efficient and stable solar cells (PSCs) highly challenging. Here, a low-cost tetra-ammonium zinc phthalocyanine (ZnPc) was used to post-treat MAPbI3 (MA = CH3NH3) film. Two-dimensional (ZnPc)0.5MA n-1Pb nI3 n+1 successfully constructed GBs film achieving suture for passivating defects in GBs. Time-resolved photoluminescence showed that modification increased decay time from 44 57 ns indicating passivation...

Inorganic perovskite quantum dots (QDs) have attracted great scientific attention in the field of luminescent materials, but application has been limited by inferior stability that results from highly dynamic capping ligands. In this work, we use a rare-earth complex to modify QDs with ligand exchange realize functionalization; meanwhile, is greatly improved. Density functional theory calculation show adsorption energy europium higher than traditional ligands, which provides thermodynamic...

The formation of defects at surfaces and grain boundaries (GBs) during the fabrication solution-processed perovskite film are thought to be responsible for its instability. Herein, Eu-porphyrin complex (Eu-pyP) is directly doped into methylammonium lead triiodide (MAPbI

Bone marrow mesenchymal stem cells ( BMMSC ) have been shown to be recruited the tumor microenvironment and exert a tumor‐promoting effect in variety of cancers. However, molecular mechanisms related on head neck cancer HNC are not clear. In this study, we investigated Periostin POSTN its roles . vitro analysis cultured ‐conditioned media MSC ‐ CM showed that significantly promoted progression by enhancing cell proliferation, migration, epithelial‐mesenchymal transformation EMT ), altering...

CeO x has been widely used in optoelectronic devices due to its special electronic and optical structure. Herein, was directly doped into ZnO successfully construct a ZnO/CeO electron transport material (ETM) perovskite solar cells (PSCs). The incorporation of can regulate the chemical compatibility between perovskite, unmatched energy levels, poor UV stability, further enhancing cell performance stability PSCs. As expected, best efficiency fabricated CH3NH3PbI3-PSCs based on as ETM up...

Abstract Design and engineering of highly efficient emitting materials with assembly-induced luminescence, such as room-temperature phosphorescence (RTP) aggregation-induced emission (AIE), have stimulated extensive efforts. Here, we propose a new strategy to obtain size-controlled Eu3+-complex nanoparticles (Eu-NPs) self-assembly-induced luminescence (SAIL) characteristics without encapsulation or hybridization. Compared previous RTP AIE materials, the SAIL phenomena increased intensity...

Deep blue-emitting perovskite nanoplates have become potential luminous materials. However, the photoluminescence emission and stability of platelets are considerably dependent on thickness aggregation state. In this study, ratio CH3NH3+ (MA+) cations ammonium bromide-modified tetraphenylethylene (TPE) was tuned to effectually control consequently state MAPbBr3 nanoplates. Specifically, content TPE in precursor suspension increased produced nanoplatelets reduced, bringing about enhanced...

Ruddlesden–Popper (RP) phase perovskite quantum wells (QWs) offer the potential for achieving deep blue emission. However, RP consists of bilayers monovalent alkylammonium ions arranged back-to-back between separated octahedral layers. The weak van der Waals interactions these cause an inherent tendency dissociation, facilitating generation mixed phases and promoting decomposition perovskite. Herein, we propose a spacer molecule management strategy to achieve size-homogenized strongly...

Employing all-inorganic perovskite quantum dots (QDs) to treat organic–inorganic films has been well documented as a serviceable tactic improve the performance of solar cells (PSCs). However, inert molecule-coated QDs with zero-dimensional (0D) structure would limit further enhancement efficiency and stability PSCs. Here, we employ conductive diammonium porphyrin (ZnPy-NH3Br) CsPbBr3 coated on three-dimensional film, thus constructing stable 0D–two-dimensional capping layer. The generation...

Preliminary screening experiments of carbon dioxide (CO2) absorption into aqueous 35 wt % equivalent potassium carbonate (K2CO3) solution with different additives were performed in a wetted-wall column at 322 K. Arginine was found as an effective promoter to enhance the rate K2CO3 solution. The effect arginine concentration and CO2 loading on solutions is discussed. vapor–liquid equilibrium 0–5 obtained temperature range from 323 343 K using inert-gas stripping method. Desorption curves...

Abstract In this study, we report the synthesis and biological evaluation of four novel cationic porphyrins (named as P1 , P2 ZnP2 CuP2 ) with potential a photodynamic therapeutic agent. MTT experiments proved that have high light toxicity low dark for A549, H‐1975, HepG2 cell lines. addition, due to specific targeting porphyrin, there was only weak Hs 578Bst normal breast cancer cells. The study further confirmed intracellular generation reactive oxygen species (ROS) under irradiation could...

Due to its potent cytotoxicity in BRCA-mutated tumors, synthetic lethality elicited by poly (ADP-ribose) polymerase (PARP) inhibitor gives renewed enthusiasm researching and developing anti-cancer therapies. Chronic myeloid leukemia (CML) is a type of cancers that starts certain blood-forming cells the bone marrow. Here, we showed talazoparib could induce concentration-dependent CML derived from pediatric patients. During treatment, autophagy was markedly activated, which confirmed...

Abstract Mesenchymal stem cells (MSCs), which are undifferentiated with the property of stemness and potential to differentiate into multiple lineages, including osteoblasts, have attracted a great deal attention in bone tissue engineering. Consistent heterogeneity MSCs, various surface markers been used. However, it is still unclear MSCs best for cell amplification vitro later regeneration vivo. Krüppel-like Factor 2 (KLF2) an important indicator human (hMSCs) as early vascularization also...