A5060953535- Perovskite Materials and Applications
- Chalcogenide Semiconductor Thin Films
- Quantum Dots Synthesis And Properties
- Conducting polymers and applications
- Solid-state spectroscopy and crystallography
- RNA regulation and disease
- Viral Infections and Immunology Research
- Advanced Photocatalysis Techniques
- RNA modifications and cancer
- Covalent Organic Framework Applications
- Advanced biosensing and bioanalysis techniques
- Microbial Inactivation Methods
- Microtubule and mitosis dynamics
- Molecular Biology Techniques and Applications
- Biosensors and Analytical Detection
- interferon and immune responses
- Long-Term Effects of COVID-19
- Cytomegalovirus and herpesvirus research
- Tryptophan and brain disorders
- Magnetic and Electromagnetic Effects
- Neurogenetic and Muscular Disorders Research
- Food Drying and Modeling
- Biochemical and Molecular Research
- RNA and protein synthesis mechanisms
- COVID-19 and Mental Health
East China Normal University
2021-2024
Sun Yat-sen University
2018-2024
Meizhou City People's Hospital
2018-2024
Academy of Medical Sciences
2023
Thermo Fisher Scientific (China)
2023
China Tobacco
2017
Hebei Normal University of Science and Technology
2015
A stable perovskite heterojunction was constructed for inverted solar cells through surface sulfidation of lead (Pb)-rich films. The formed lead-sulfur (Pb-S) bonds upshifted the Fermi level at interface and induced an extra back-surface field electron extraction. resulting devices exhibited a power conversion efficiency (PCE) >24% with high open-circuit voltage 1.19 volts, corresponding to low loss 0.36 volts. strong Pb-S could stabilize heterojunctions strengthen underlying structures that...
Tin-lead (Sn-Pb) perovskite solar cells (PSCs) with near-ideal bandgap still lag behind the pure lead PSCs. Disordered heterojunctions caused by inhomogeneous Sn/Pb ratio in binary film induce large recombination loss. Here, an Sn-Pb is reported homogeneous component and energy distribution introducing hydrazine sulfate (HS) Sn precursor. HS can form hydrogen bond network coordinate FASnI3 thus no longer Pb2+ , which reduces crystallization rate of tin to level analog. The strong bonding...
Inverted CsPbI3 commonly exhibits a more p-type surface than bulk, which induces severe interfacial recombination and, thus, limits the device's Voc and efficiency in inverted perovskite solar cells (PSCs). Here, gradual CsPbI3/PbS heterojunction is constructed to inhibit such through situ chemical sulfidation with N,N′-diphenylthiourea (DPhTA). DPhTA can directly react form PbS induce p- n-type transition at surface, leads energy level bending downward establishing top of region. PSCs...
One big challenge limiting the stability of perovskite solar cells (PSCs) is that iodine species produced in tend to diffuse and escape from PSCs, accelerating decomposition destroying other functional layers as well. Motivated by idea confinement lithium–iodine batteries, here an confining strategy proposed fabricate stable PSCs incorporating poly(2-vinylpyridine) (P2VP) into film. P2VP can effectively bond with product inhibit its diffusion volatilization thus suppressing device...
Abstract Ag electrode is widely used in inverted perovskite solar cells (PSCs), but its easy reaction and corrosive nature with always induces severe stability issue. Here, from typical theory of metal anticorrosion, a chemical anticorrosion approach for PSCs through introducing 2‐mercaptobenzothiazole (MBT) as corrosion inhibitor reported. MBT can strongly bond to form compact [MBT‐Ag] chain on surface owing N atom thiazolyl ring exocyclic thiol groups. As result, ability greatly enhanced...
Abstract Here robust Pb‐S covalency is successfully incorporated into CsPbI 3 heterojunction by introducing a new zwitterionic organosulfide‐halide perovskite on top of . Cysteamine (CYS: + NH (CH 2 ) S − will react with PbCl and form 3D much shallower fermi level surface, constructing an efficient /[CYS][PbCl ] heterojunction. As result, interfacial energy loss can be significantly inhibited device open‐circuit voltage ( Voc increased to over 1.20 V champion efficiency 20.38% in inverted...
Enterovirus 71 (EV71) is the common causative agent of hand-foot-mouth disease (HFMD). Despite evidence in mice model suggested that interferon (IFN) signaling pathways play a role defending against this virus, knowledge on IFN-mediated antiviral response still limited. Here we identified an IFN-stimulated gene (ISG) called L3HYPDH, whose expression inhibits EV71 replication. Mapping assay indicated amino acids 61-120 and 295-354 are critical for its optimal activity. Mechanismly, L3HYPDH...
Abstract The p‐ or n‐type property of semiconductor materials directly determine the final performance photoelectronic devices. Generally, perovskite deposited on p‐type substrate tends to be p‐type, while n‐type. Motived by this, a substrate‐induced re‐growth strategy is reported induce n‐transition surface in inverted solar cells (PSCs). film obtained and crystallized first. Then an ITO/SnO 2 with saturated solution pressed onto annealed secondary region. As result, transition happens...
Abstract Long‐term operational stability remains a big challenge for perovskite solar cells (PSCs), especially under ISOS protocol with high temperature. One key reason lies in the iodine loss issue during PSCs aging. Motived by reversible iodine‐alkenes reaction, 3‐butenylamine (BEA) based 2D 2 [PbBr 4 ] is used to construct functionalized 2D/3D heterojunction PSCs. can chemically adsorb photo‐generated species degradation through typical reaction between neutral and terminal alkenes, thus...
PbI2 is a commonly used passivator for defect passivation in perovskite solar cells (PSCs). However, the poor conductivity nature of may limit further improvement device performance. Here, we report radical form with high to passivate defects efficient PSCs through combination N,N,N′,N′-tetramethylbenzidine (TMB). When combined TMB, 4 orders magnitude higher will be achieved owing formation TMB-PbI2 radical. As result, performance impressively increased from 20.48 22.63%. In addition,...
DNA detection, which includes the measurement of variants in sequences or presence certain genes, is widely used research and clinical diagnosis. Both require DNA-dependent polymerase-catalyzed strand extension. Currently, these techniques rely heavily on instruments to visualize results. This study introduced a simple direct colorimetric method measure polymerase-directed elongation. First, pyrophosphate (PPi), by-product extension, converted into phosphate (Pi). Phosphate levels were...
The prognosis of COVID-19 (coronavirus disease 2019) is usually poor when it occurs in aged adults or patients with chronic diseases, which brought a great challenge to clinical practice. Furthermore, widespread depression, anxiety, and panic related SARS-CoV-2 (severe acute respiratory syndrome-coronavirus 2) infection affected treatment compliance recovery. Here we report the successful 57-year-old male severe COVID-19, schizophrenia, hypertension, type 2 diabetes. patient's negative...
Abstract Enterovirus 71 (EV71) is the common causative agent of hand-foot-mouth disease (HFMD). Despite evidence in mice model suggested that interferon (IFN) signaling pathways play a role defending against this virus, knowledge on IFN-mediated antiviral response still limited. Here we identified an IFN-stimulated gene (ISG) called L3HYPHD, whose expression inhibits EV71 replication. Mapping assay indicated amino acids 61-120 and 295-354 are critical for its optimal activity. Mechanismly,...
Summary After a high-pressure processing (HPP) treatment sensory evaluation of flue-cured tobacco showed modifications. There was no significant difference (P > 0.05) between the routine chemical components (total sugar, reducing nicotine, and total nitrogen) after (HPP sample) that an untreated control group (CG). An overall judgement, which can be made from observations scanning electron microscopy (SEM), X-ray computed microtomography (micro-CT) transmission (TEM), is HPP could...