Haoran Jia

ORCID: 0009-0003-8307-547X
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Research Areas
  • X-ray Diffraction in Crystallography
  • Crystallization and Solubility Studies
  • Quantum Dots Synthesis And Properties
  • Organic Light-Emitting Diodes Research
  • Carbon and Quantum Dots Applications
  • Metal-Organic Frameworks: Synthesis and Applications
  • Perovskite Materials and Applications
  • Luminescence and Fluorescent Materials
  • Conducting polymers and applications
  • Nanocluster Synthesis and Applications
  • Metal complexes synthesis and properties
  • Magnetism in coordination complexes
  • Optical measurement and interference techniques
  • Quantum Information and Cryptography
  • Image Processing Techniques and Applications
  • Molecular Sensors and Ion Detection
  • Quantum Computing Algorithms and Architecture
  • Laser-Matter Interactions and Applications
  • Digital Holography and Microscopy
  • Catalytic Processes in Materials Science
  • Chalcogenide Semiconductor Thin Films
  • Plant Gene Expression Analysis
  • Catalysts for Methane Reforming
  • Chemical Synthesis and Characterization
  • Postharvest Quality and Shelf Life Management

Renji Hospital
2025

Shanghai Jiao Tong University
2025

China Agricultural University
2025

Dalian Institute of Chemical Physics
2023-2025

Zhejiang University
2023-2025

Beijing University of Chemical Technology
2020-2024

Beijing Jiaotong University
2023-2024

Shandong University
2023-2024

Beijing University of Technology
2022-2023

Hangzhou Dianzi University
2023

Abstract The development of efficient red bandgap emission carbon quantum dots (CQDs) for realizing high‐performance electroluminescent warm white light‐emitting diodes (warm‐WLEDs) represents a grand challenge. Here, the synthesis three red‐emissive electron‐donating group passivated CQDs (R‐EGP‐CQDs): R‐EGP‐CQDs‐NMe 2 , ‐NEt and ‐NPr is reported. R‐EGP‐CQDs, well soluble in common organic solvents, display bright at 637, 642, 645 nm, respectively, reaching highest photoluminescence yield...

10.1002/advs.201900397 article EN cc-by Advanced Science 2019-04-30

Two kinds of triphenylamine-derived solid-state emissive carbon dots (CDs) with orange and yellow color are facilely synthesized through solvothermal treatment, taking advantage the nonplanar structure good carrier mobility triphenylamine unit. Theoretical calculations show that could greatly inhibit direct π-π stacking aromatic skeletons enhance fluorescence properties CDs in aggregation state. By adopting as single layer, high-performance orange-color green-color electroluminescent...

10.1002/anie.202301651 article EN Angewandte Chemie International Edition 2023-03-31

Lead-free perovskite emitters, particularly 2D tin (Sn) halide perovskites, have attracted considerable academic attention in recent years. However, the problems of Sn oxidation and rapid crystallization lead to an inferior morphology with high trap states, thus limiting luminous efficiency light-emitting diodes (PeLEDs). In this study, authors establish approach by introducing organic additive, 2-imidodicarbonic diamide (biuret), address issues fast crystallization. The unique symmetrical...

10.1002/smll.202200036 article EN Small 2022-03-22

The reaction conditions of high temperature and pressure will introduce structural defects, energy consumption, security risks, severely hindering the industrial application organic carbon nanodots (CDs). Moreover, aggregation caused quenching effect also fundamentally limits CDs based electroluminescent light emitting diodes (LEDs). Herein, for first time, a rapid one-step room synthetic strategy is introduced to prepare highly emissive solid-state-fluorescent (RT-CDs). A strong oxidizing...

10.1002/smll.202206715 article EN Small 2023-02-08

The unavoidably positively and negatively charged defects at the interface between perovskite electron transport layer (ETL) often lead to severe surface recombination unfavorable energy level alignment in inverted solar cells (PerSCs). Inserting interlayers this is an effective approach eliminate defects. Herein, macrocyclic molecule valinomycin (VM) with multiple active sites of ─C═O, ─NH, ─O─ employed as interlayer perovskite/ETL contact simultaneously Combined a series theoretical...

10.1002/adma.202304918 article EN Advanced Materials 2023-07-29

The development of new electron transporting layer (ETL) materials to improve the charge carrier extraction and collection ability between cathode active has been demonstrated be an effective approach enhance photovoltaic performance organic solar cells (OSCs). Herein, water-soluble carbon dots (CDs) as ETL material have creatively synthesized by a vigorous chemical reaction polyethylenimine (PEI) 3,4,9,10-perylenetetracarboxylic dianhydride (PTCDA) via simple one-step hydrothermal method....

10.1021/acsami.1c23494 article EN ACS Applied Materials & Interfaces 2022-01-03

Exploiting narrow-bandwidth-emission fluorescent materials is crucial for next-generation wide-color gamut displays. Inspired by the characteristic of chlorophyll derivates, present work develops a facile strategy to synthesize series red-emitting chlorophyll-structured CDs (CHL-CDs) with ultra-high color purity and good carrier mobility from different traditional Chinese medicine leaves through simple cross-linking polymerization carbonization process. The obtained CHL-CDs exhibit bright...

10.1063/5.0184547 article EN Applied Physics Reviews 2024-02-27

Solvent-induced trinuclear NiII complexes, [{Ni(L)(MeOH)}2(OAc)2Ni]·2MeOH (1), [{Ni(L)(EtOH)}2(OAc)2Ni]·2H2O (2), [{Ni(L)(n-PrOH)}2(OAc)2Ni]·2H2O (3) and [{Ni(L)(i-PrOH)}2(OAc)2Ni] (4), have been prepared with an unsymmetric Salamo-like ligand H2L, characterized via X-ray crystallography, FT-IR, UV-Vis fluorescence spectra. In complexes 1, 2, 3 4, there are two (L)2− moieties, acetato ligands, coordinated methanol, ethanol, n-propanol or i-propanol molecules, respectively, as well other...

10.3390/cryst8040176 article EN cc-by Crystals 2018-04-18

Abstract Cultivated strawberry (Fragaria × ananassa), a world-famous fruit, is subjected to rapid softening during ripening, resulting in shorter shelf life and severe economic losses storage transportation. However, there limited understanding of the molecular mechanism underlying differences fruit firmness ripening postharvest among cultivated strawberries. Here, we explored this by comparing three strawberries via measurement, transcriptome analysis, quantitative real-time polymerase...

10.1093/fqsafe/fyad020 article EN cc-by-nc Food Quality and Safety 2023-01-01

Research on the ripening of fleshy fruits has relied techniques that measure transcriptional changes. How is linked to posttranslational modifications such as protein phosphorylation remains less studied. Here, we characterize MADS-box SEPALLATA 4 (SEP4) subfamily transcription factor FaCMB1, a key negative regulator controlling strawberry ripening, whose transcript and abundance decrease progressively with fruit development are repressed by abscisic acid (ABA). Transient RNAi or...

10.1111/nph.70065 article EN cc-by-nc New Phytologist 2025-04-02

Many oxide catalysts exhibit high selectivity but low conversion in CO2 hydrogenation due to strong adsorption, which often impedes H2 dissociation and subsequent hydrogenation. Herein, we report that a ZnCr2O4@ZnOx catalyst featuring monodispersed ZnOx overlayer confined on ZnCr2O4 facilitates activation without compromising activation. This demonstrates dual‐site mechanism surface and/or ZnOx/ZnCr2O4 interface provide sites for promote homolytic formation of stable metal‐H species,...

10.1002/ange.202503319 article EN Angewandte Chemie 2025-04-14

Many oxide catalysts exhibit high selectivity but low conversion in CO2 hydrogenation due to strong adsorption, which often impedes H2 dissociation and subsequent hydrogenation. Herein, we report that a ZnCr2O4@ZnOx catalyst featuring monodispersed ZnOx overlayer confined on ZnCr2O4 facilitates activation without compromising activation. This demonstrates dual‐site mechanism surface and/or ZnOx/ZnCr2O4 interface provide sites for promote homolytic formation of stable metal‐H species,...

10.1002/anie.202503319 article EN Angewandte Chemie International Edition 2025-04-14

The narrow bandgap Pb-Sn hybrid perovskite materials with lower toxicities and adjustable optical bandgaps provide the opportunity to construct high-efficiency solar cells (PerSCs). To solve issues of uncontrollable crystallization rate easy oxidation Sn2+, a β-diketone-based additive, N,N,N',N'-tetraphenylmalondiamide (TPMA), is introduced coordinate Pb2+ Sn2+. introduction TPMA can improve morphology films decrease density defect states, resulting in an enhanced power conversion efficiency...

10.1021/acs.jpclett.1c03555 article EN The Journal of Physical Chemistry Letters 2021-12-02

Collaborative optimization of emission layer and transport layers is employed to minimize the energy loss at interface all-solution-processed metal halide perovskite light-emitting diodes.

10.1039/d1tc02504j article EN Journal of Materials Chemistry C 2021-01-01

Blue perovskite light-emitting diodes (PeLEDs) based on pure bromide compositions exhibit notable potential attributed to their stable performance and the absence of halogen phase separation. Nevertheless, a considerable challenge persists in effective suppression narrow-bandgap emission phases ensure optimal color purity. In this investigation, we delve into utilization zwitterionic β-alanine (β-Ala) facilitate formation nanocrystalline-structured perovskite. β-Ala, possessing both amino...

10.1063/5.0200866 article EN Applied Physics Reviews 2024-08-14

A simple Schiff base fluorescent probe (SW) composed of oxime and salicylaldehyde units was designed synthesized. The has high selectivity sensitivity for Zn2+ ion in mixed solvent (DMSO/H2O, V/V = 9:1). fluorescence obvious redshift phenomenon visible color change. stoichiometric ratio the to confirmed be 1:2 (mole) by 1H NMR, MS analysis job curves. And detection limit response SW is down 2.53 × 10–8 mol/L. At same time, can applied test paper ions under 365 nm UV light actual water samples.

10.1007/s11696-021-01684-x article EN cc-by Chemical Papers 2021-05-18

Abstract Two kinds of triphenylamine‐derived solid‐state emissive carbon dots (CDs) with orange and yellow color are facilely synthesized through solvothermal treatment, taking advantage the nonplanar structure good carrier mobility triphenylamine unit. Theoretical calculations show that could greatly inhibit direct π–π stacking aromatic skeletons enhance fluorescence properties CDs in aggregation state. By adopting as single layer, high‐performance orange‐color green‐color...

10.1002/ange.202301651 article EN Angewandte Chemie 2023-03-31
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