Mingjian Wu
Dr. Mingjian Wu
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Biography
I studied Materials Science and obtained Bachelor’s and Master’s degrees at Hunan University, China. Afterward, I moved to Berlin, Germany, and worked at Paul-Drude-Institute for solid state electronics with Dr. Achim Trampert on the topic of structural phase stability in III-V semiconductors. With a top honor grade „summa cum laude“, I obtained doctor degree (Dr. rer. nat.) in Humboldt Universitaet zu Berlin in 2014. After a short stay in Finland, I joined the Institute of Micro- and Nanostructure Research at FAU in 2015. I am currently a staff scientist at the institute, with roles as
+ scientific advisor in various projects offering advanced electron microscopy/spectroscopy expertise
+ facility supervisor/manager of a double Cs-corrected, monochromated Titan Themis and a probe-corrected Spectra 200 TEMs
My research interest lies in interfaces of functional nanomaterials and their relationship to their properties. I offer comprehensive expertise in micro- and nano-analytics in the field of materials science and nanotechnology, with more than a decade of experience in the development and application of advanced and in situ microscopy techniques. I maintain a solid track record of working closely together with materials scientists in the fields of growth/synthesis, spectroscopy/scattering, and theory/simulation.
My current research topics cover the following aspects:
+ high-resolution imaging and spectroscopy of nanostructured materials and devices
+ diffraction-based methods, 4D-STEM, and big data analysis routines
+ in situ electron microscopy techniques and novel preparation methods
+ phase contrast electron microscopy techniques (for revealing nanoscale electrostatic and magnetic fields)
+ extended defects in nano-structured semiconductors, metals, and thin films
+ nano-particulate systems, nano-alloys, and intermetallics
+ beam-sensitive organic/inorganic materials for photovoltaic and optoelectronics
Besides, I also offer teaching activities in the following curricular
+ Electron Microscopy I (Master course; at winter semesters, responsible for exercises: 2 ECTS)
+ Electron Microscopy II (at summer semesters, responsible for lecture & exercise: 5 ECTS total)
+ Lab course of Nanotechnology (Master level lab course at winter semesters: 2 ECTS)
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Publications
2023
18.2%-efficient ternary all-polymer organic solar cells with improved stability enabled by a chlorinated guest polymer acceptor
In: Joule 7 (2023), S. 221-237
ISSN: 2542-4351
DOI: 10.1016/j.joule.2022.12.007
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2022
Sub-Kelvin thermometry for evaluating the local temperature stability within in situ TEM gas cells
In: Ultramicroscopy 235 (2022), S. 113494
ISSN: 0304-3991
DOI: 10.1016/j.ultramic.2022.113494
URL: https://doi.org/10.1088/1361-6528/ab8a8c
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Radiolysis‐Driven Evolution of Gold Nanostructures – Model Verification by Scale Bridging In Situ Liquid‐Phase Transmission Electron Microscopy and X‐Ray Diffraction
In: Advanced Science 9 (2022), Art.Nr.: 2202803
ISSN: 2198-3844
DOI: 10.1002/advs.202202803
URL: https://onlinelibrary.wiley.com/doi/10.1002/advs.202202803
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Understanding and Controlling the Evolution of Nanomorphology and Crystallinity of Organic Bulk-Heterojunction Blends with Solvent Vapor Annealing
In: Solar RRL (2022)
ISSN: 2367-198X
DOI: 10.1002/solr.202200127
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Exploring the Preparation Dependence of Crystalline 2D-Extended Ultrathin C8-BTBT-C8 Films
In: ACS Applied Materials and Interfaces (2022)
ISSN: 1944-8244
DOI: 10.1021/acsami.2c00097
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sp-Carbon Incorporated Conductive Metal-Organic Framework as Photocathode for Photoelectrochemical Hydrogen Generation
In: Angewandte Chemie International Edition (2022)
ISSN: 1433-7851
DOI: 10.1002/anie.202208163
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Tailoring the Nature of Interface States in Efficient and Stable Bilayer Organic Solar Cells by a Transfer-Printing Technique
In: Advanced Materials Interfaces (2022)
ISSN: 2196-7350
DOI: 10.1002/admi.202200342
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Seeing structural evolution of organic molecular nano-crystallites using 4D scanning confocal electron diffraction (4D-SCED)
In: Nature Communications 13 (2022), Art.Nr.: 2911
ISSN: 2041-1723
DOI: 10.1038/s41467-022-30413-5
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2021
Phase evolution of Cu2ZnSnS4 (CZTS) nanoparticles from in situ formed binary sulphides under solvothermal conditions
In: Crystengcomm (2021)
ISSN: 1466-8033
DOI: 10.1039/d0ce01566k
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Intrinsic nano-diffusion-couple for studying high temperature diffusion in multi-component superalloys
In: Scripta Materialia 192 (2021), S. 120-124
ISSN: 1359-6462
DOI: 10.1016/j.scriptamat.2020.10.002
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Accessing local electron-beam induced temperature changes during in situ liquid-phase transmission electron microscopy
In: Nanoscale Advances 3 (2021), S. 2466 - 2474
ISSN: 2516-0230
DOI: 10.1039/D0NA01027H
URL: https://pubs.rsc.org/en/content/articlelanding/2021/NA/D0NA01027H
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Beam-induced heating at low electron fluxes during liquid phase transmission electron microscopy
In: Microscopy and Microanalysis 27 (2021), S. 1040-1042
ISSN: 1431-9276
DOI: 10.1017/S1431927621003937
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Evaluating local temperature changes during liquid cell transmission electron microscopy by in situ parallel beam electron diffraction
Virtual Early Career European Microscopy Congress 2020 (Kopenhagen, November 24, 2020 - November 26, 2020)
In: Proceedings of the European Microscopy Congress 2020 2021
DOI: 10.22443/rms.emc2020.253
URL: https://www.emc2020.eu/abstract/evaluating-local-temperature-changes-during-liquid-cell-transmission-electron-microscopy-by-emin-situnbspemparallel-beam-electron-diffraction.html
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Correlative relationship between nanomorphology, crystallinity, texture and device efficiency of organic BHJ solar cells studied by energy-filtered TEM
In: Microscopy and Microanalysis 27 (2021), S. 390-392
ISSN: 1431-9276
DOI: 10.1017/S1431927621001938
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Rapid fabrication and interface structure of highly faceted epitaxial Ni-Au solid solution nanoparticles on sapphire
In: Acta Materialia 220 (2021), S. 117318
ISSN: 1359-6454
DOI: 10.1016/j.actamat.2021.117318
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Direct Manipulation of Nanostructures Utilizing Donut-Shaped Potential Wells during Liquid-Phase Transmission Electron Microscopy
Virtual Early Career European Microscopy Congress 2020
DOI: 10.22443/rms.emc2020.158
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Structural characterization of alpha,omega-DH6T monolayer films grown at the liquid-liquid interface
In: Soft Matter (2021)
ISSN: 1744-683X
DOI: 10.1039/d1sm01072g
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Distinct endocytosis and immune activation of poly lactic-co-glycolic acid nanoparticles prepared by single- and double-emulsion evaporation
In: Nanomedicine 16 (2021), S. 2075-2094
ISSN: 1743-5889
DOI: 10.2217/nnm-2021-0022
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Hydrogenated anatase TiO2 single crystals: defects formation and structural changes as microscopic origin of co-catalyst free photocatalytic H2 evolution activity
In: Journal of Materials Chemistry A (2021)
ISSN: 2050-7488
DOI: 10.1039/D1TA04809K
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Correlative 3D nanotomography and in situ transmission electron microscopy studies on supported catalytically active liquid metal solutions
European Microscopy Congress 2020
DOI: 10.22443/rms.emc2020.287
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Unraveling Structural Details in Ga-Pd SCALMS Systems Using Correlative Nano-CT, 360° Electron Tomography and Analytical TEM
In: Catalysts (2021)
ISSN: 2073-4344
DOI: 10.3390/catal11070810
URL: https://www.mdpi.com/2073-4344/11/7/810
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2020
Effect of the Counteranion on the Formation Pathway of Cu2ZnSnS4 (CZTS) Nanoparticles under Solvothermal Conditions
In: Inorganic Chemistry 59 (2020), S. 1973-1984
ISSN: 0020-1669
DOI: 10.1021/acs.inorgchem.9b03338
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Bipolar-shell resurfacing for blue LEDs based on strongly confined perovskite quantum dots
In: Nature Nanotechnology (2020)
ISSN: 1748-3387
DOI: 10.1038/s41565-020-0714-5
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Atomic Structure and Chemical Composition of Planar Fault Structures in Co-Base Superalloys
14th International Symposium on Superalloys, Superalloys 2021 (Seven Springs, PA, September 12, 2021 - September 16, 2021)
In: Sammy Tin, Mark Hardy, Justin Clews, Jonathan Cormier, Qiang Feng, John Marcin, Chris O'Brien, Akane Suzuki (Hrsg.): Minerals, Metals and Materials Series 2020
DOI: 10.1007/978-3-030-51834-9_90
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Segregation-assisted climb of Frank partial dislocations: An alternative route to superintrinsic stacking faults in L12-hardened superalloys
In: Acta Materialia 191 (2020), S. 270-279
ISSN: 1359-6454
DOI: 10.1016/j.actamat.2020.03.056
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Unraveling Complexity: A Strategy for the Characterization of Anisotropic Core Multishell Nanoparticles
In: Particle & Particle Systems Characterization (2020)
ISSN: 0934-0866
DOI: 10.1002/ppsc.202000145
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Reduced Grey Brookite for Noble Metal Free Photocatalytic H2 Evolution
In: Journal of Materials Chemistry A (2020)
ISSN: 2050-7488
DOI: 10.1039/D0TA09066B
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Oxidation induced restructuring of Rh-Ga SCALMS model catalyst systems
In: Journal of Chemical Physics 153 (2020), S. 104702-
ISSN: 0021-9606
DOI: 10.1063/5.0021647
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2019
Assembling Mesoscale-Structured Organic Interfaces in Perovskite Photovoltaics
In: Advanced Materials 31 (2019), Art.Nr.: 1806516
ISSN: 0935-9648
DOI: 10.1002/adma.201806516
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Pushing PbS/Metal‐Halide‐Perovskite Core/Epitaxial‐Ligand‐Shell Nanocrystal Photodetectors beyond 3 µm Wavelength
In: Advanced Functional Materials 29 (2019), Art.Nr.: 1807964
ISSN: 1616-301X
DOI: 10.1002/adfm.201807964
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Impact of Bi incorporation on the evolution of microstructure during growth of low-temperature GaAs:Bi/Ga(As,Bi) layers
In: Journal of Applied Physics 126 (2019), Art.Nr.: 085305
ISSN: 0021-8979
DOI: 10.1063/1.5111532
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Highly Effective Propane Dehydrogenation Using Ga-Rh Supported Catalytically Active Liquid Metal Solutions
In: ACS Catalysis (2019), S. 9499-9507
ISSN: 2155-5435
DOI: 10.1021/acscatal.9b02459
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Fabrication and structural characterization of diamond-coated tungsten tips
In: Diamond and Related Materials 97 (2019), Art.Nr.: 107446
ISSN: 0925-9635
DOI: 10.1016/j.diamond.2019.107446
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Transforming layered MoS2 into functional MoO2 nanowires
In: Nanoscale 11 (2019), S. 11687-11695
ISSN: 2040-3364
DOI: 10.1039/c9nr03346g
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Aerosol synthesis of germanium nanoparticles supported by external seeding: Theoretical and experimental analysis
In: Journal of Aerosol Science 128 (2019), S. 50-61
ISSN: 0021-8502
DOI: 10.1016/j.jaerosci.2018.11.013
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Advanced and In-Situ Electron Microscopy Investigation of Phase Composition and Phase Transformation in Ga-Rh Liquid Metal Catalysts
In: Microscopy and Microanalysis 25 (2019), S. 1878-1879
ISSN: 1431-9276
DOI: 10.1017/S1431927619010122
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Determination of 3D electrostatic field at an electron nano-emitter
In: Applied Physics Letters 114 (2019), S. 013101
ISSN: 0003-6951
DOI: 10.1063/1.5055227
URL: http://aip.scitation.org/doi/10.1063/1.5055227
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Three-Dimensional Electrostatic Field at an Electron Nano-Emitter Determined by Differential Phase Contrast in Scanning Transmission Electron Microscopy
In: Microscopy and Microanalysis 25 (2019), S. 74-75
ISSN: 1431-9276
DOI: 10.1017/S1431927619001107
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2018
Minimization of catalyst loading on regenerative fuel cell positive electrodes based on Ti felts using atomic layer deposition
In: ChemElectroChem 5 (2018), S. 3932-3937
ISSN: 2196-0216
DOI: 10.1002/celc.201801220
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Impact of N Incorporation on VLS Growth of GaP(N) Nanowires Utilizing UDMH
In: Nanoscale Research Letters 13 (2018), S. 417
ISSN: 1931-7573
DOI: 10.1186/s11671-018-2833-6
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2017
The role of epitaxial strain on the spontaneous formation of Bi-rich nanostructures in Ga(As,Bi) epilayers and quantum wells
In: Nanoscience and Nanotechnology Letters 9 (2017), S. 1132-1138
ISSN: 1941-4900
DOI: 10.1166/nnl.2017.2448
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Correlative micro-diffraction and differential phase contrast study of mean inner potential and subtle beam-specimen interaction
In: Ultramicroscopy 176 (2017), S. 233-245
ISSN: 0304-3991
DOI: 10.1016/j.ultramic.2017.03.029
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Nanoscale distribution of Bi atoms in InP1−xBix
In: Scientific Reports 7 (2017), S. 12278
ISSN: 2045-2322
DOI: 10.1038/s41598-017-12075-2
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2016
Spontaneous formation of three-dimensionally ordered Bi-rich nanostructures within GaAs1-xBix/GaAs quantum wells
In: Nanotechnology 27 (2016), Art.Nr.: 325603
ISSN: 1361-6528
DOI: 10.1088/0957-4484/27/32/325603
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2015
Spontaneous formation of nanostructures by surface spinodal decomposition in GaAs1-xBix epilayers
In: Journal of Applied Physics 117 (2015), Art.Nr.: 185302
ISSN: 1089-7550
DOI: 10.1063/1.4919896
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Detecting lateral composition modulation in dilute Ga(As, Bi) epilayers
In: Nanotechnology 26 (2015), S. 425701
ISSN: 0957-4484
DOI: 10.1088/0957-4484/26/42/425701
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Interface structure and strain state of InAs nano-clusters embedded in silicon
In: Acta Materialia 90 (2015), S. 133-139
ISSN: 1359-6454
DOI: 10.1016/j.actamat.2015.02.042
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2014
Nanostructured hybrid material based on highly mismatched III-V nanocrystals fully embedded in silicon
In: physica status solidi (a) 211 (2014), S. 817-822
ISSN: 1862-6300
DOI: 10.1002/pssa.201330395
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Plan-view transmission electron microscopy investigation of GaAs/(In,Ga)As core-shell nanowires
In: Applied Physics Letters 105 (2014)
ISSN: 0003-6951
DOI: 10.1063/1.4896505
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InPBi single crystals grown by molecular beam epitaxy
In: Scientific Reports 4 (2014), Art.Nr.: 5449
ISSN: 2045-2322
DOI: 10.1038/srep05449
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Atomistic structure and energetics of GdN clusters in Gd-doped GaN
In: Acta Materialia 76 (2014), S. 87-93
ISSN: 1359-6454
DOI: 10.1016/j.actamat.2014.05.009
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Formation and phase transformation of Bicontaining QD-like clusters in annealed GaAsBi
In: Nanotechnology 25 (2014)
ISSN: 0957-4484
DOI: 10.1088/0957-4484/25/20/205605
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Observation of atomic ordering of triple-period-A and -B type in GaAsBi
In: Applied Physics Letters 105 (2014), S. 041602
ISSN: 0003-6951
DOI: 10.1063/1.4891854
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2013
Variation of lattice constant and cluster formation in GaAsBi
In: Journal of Applied Physics 114 (2013), Art.Nr.: 243504
ISSN: 0021-8979
DOI: 10.1063/1.4851036
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Coherent clustering of GdN in epitaxial GaN:Gd thin film
2013 MRS Spring Meeting (San Francisco, CA)
DOI: 10.1557/opl.2013.930
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Coherent GdN clusters in epitaxial GaN:Gd thin films determined by transmission electron microscopy
In: Nanotechnology 24 (2013), S. 255701
ISSN: 0957-4484
DOI: 10.1088/0957-4484/24/25/255701
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