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Perovskite decomposition and missing crystal planes in HRTEM
Organic–inorganic hybrid perovskites have recently emerged as a new class of semiconductor for high-performance optoelectronic devices, but their extreme sensitivity to electron beam irradiation hinders our ability to obtain the intrinsic structures from high-resolution transmission electron microscopy (HRTEM) characterizations.
Synthesis of High‐purity Solid SiO2 Nanodumbbells Via Induced Aggregation for Levitated Optomechanics
Optically levitated nanodumbbells in vacuum are excellent candidates for thermodynamics, macroscopic quantum mechanics, precision measurements and quantum sensing.
Common Phase and Structure Misidentifications in High-Resolution TEM Characterization of Perovskite Materials
Keywords: MAPbI3 perovskite; transmission electron microscopy (TEM); electron diffraction (ED); phase identification; electron beam-sensitive
Transfer of large-scale perovskite single-crystalline thin films onto arbitrary substrates
However, it is still challenging to transfer and integrate them with other functional materials for hybrid multilayer devices because of their substrate-dependent growth.
Applied Physics Materials Science
Synthesis of High-Purity Solid SiO2 Nanodumbbells via Induced Aggregation
Optically levitated nanodumbbells in vacuum are excellent candidates for thermodynamics, macroscopic quantum mechanics, precision measurements, and quantum sensing.
Substrate engineering in the growth of perovskite crystals
Finally, several key challenges and related solutions in the growth of perovskite crystals based on substrate engineering are proposed.
Materials Science
Sublimable materials facilitate the TEM sample preparation of oil-soluble nanomaterials
Sample preparation is significantly important to the high-resolution transmission electron microscopy (HRTEM) characterization of nanomaterials.
Chelating agent: The health protector of researchers in lead halide perovskite laboratory
Lead halide perovskites have achieved substantial success in various optoelectronic devices owing to their remarkable physical properties.
Alerts in High-resolution TEM characterization of perovskite material
High-resolution TEM (HRTEM) is a powerful tool for structure characterization.
Research of growth and devices base on perovskite single-crystalline thin films [PhD thesis]
In this paper, we begin from the field of materials growth for perovskite single crystal thin films and work on the growth of high quality, ultra-thin, large scale and controllable thickness of thin films.
Growth of centimeter-scale perovskite single-crystalline thin flm via surface engineering
However, their solution based growth method is intrinsically challenge to grow large scale single‑crystalline thin flm due to the random nucleation and isotropous growth of the crystal.
A method of the transfer graphene based on sublimed method 2015 patent CN106904605B
The invention discloses a kind of methods of transfer graphene. This method is using the substance easily to distil as the supporting layer of transfer graphene, first by heating easy sublimate, its graphene surface on being grown on initial substrate is set to sublimate to form fine and close supporting layer, then it removes initial substrate and graphene/supporting layer is transferred to target substrate, then supporting layer is distilled. Compared to residue glue problem existing for existing PMMA methods, PDMS methods and hot stamping, heat release tape method to target substrate planarization, adhesion requirement is higher the problems such as, the present invention uses easy sublimate as supporting layer, transfer process is simpler, convenient, can be achieved large area from graphene to arbitrary target substrate, it is lossless, shifted without residue glue, graphene will be expanded significantly in terms of flexible electronic, organic nano electronics, organic solar batteries, organic sensor, the application in the fields such as organic High-performance micro-nano electronic device, organic material energy stores.
CN106904605 Method for transferring graphene based on sublimation method
The invention discloses a method for transferring graphene.
A method of the transfer graphene based on sublimed method 2015 CN ZL201510962569.0
The invention discloses a kind of methods of transfer graphene. This method is using the substance easily to distil as the supporting layer of transfer graphene, first by heating easy sublimate, its graphene surface on being grown on initial substrate is set to sublimate to form fine and close supporting layer, then it removes initial substrate and graphene/supporting layer is transferred to target substrate, then supporting layer is distilled. Compared to residue glue problem existing for existing PMMA methods, PDMS methods and hot stamping, heat release tape method to target substrate planarization, adhesion requirement is higher the problems such as, the present invention uses easy sublimate as supporting layer, transfer process is simpler, convenient, can be achieved large area from graphene to arbitrary target substrate, it is lossless, shifted without residue glue, graphene will be expanded significantly in terms of flexible electronic, organic nano electronics, organic solar batteries, organic sensor, the application in the fields such as organic High-performance micro-nano electronic device, organic material energy stores.
Analysis of Organic Chemistry Tests in 27th Chemistry Olympiad (Provincial Division)
Based on the basic principle and mechanism of organic chemistry, the organic chemistry tests in 27th chemistry olympiad (Provincial Division) in were analyzed in detail for the reference of instructors and competitors.
