Search Results - "JAEGERMANN, W"

Fundamental degradation mechanisms of layered oxide Li-ion battery cathode materials: Methodology, insights and novel approaches by Hausbrand, R., Cherkashinin, G., Ehrenberg, H., Gröting, M., Albe, K., Hess, C., Jaegermann, W.

“…•Description of recent in operando and in situ analysis methodology.•Surface science approach using photoemission for analysis of cathode surfaces and…”
Get full text

Properties of CH3NH3PbX3 (X = I, Br, Cl) Powders as Precursors for Organic/Inorganic Solar Cells by Dimesso, L, Dimamay, M, Hamburger, M, Jaegermann, W

“…CH3NH3PbX3 (X = Cl, Br, I) perovskites were prepared by a self-organization processes using different precursor solutions. The XRD analysis indicates the…”
Get full text

Nonrigid Band Behavior of the Electronic Structure of LiCoO2 Thin Film during Electrochemical Li Deintercalation by Ensling, D, Cherkashinin, G, Schmid, S, Bhuvaneswari, S, Thissen, A, Jaegermann, W

“…In this study, a comprehensive experimental in situ analysis of the evolution of the occupied and unoccupied density of states as a function of the charging…”
Get full text

Investigation of formamidinium and guanidinium lead tri-iodide powders as precursors for solar cells by Dimesso, L., Quintilla, A., Kim, Y.-M., Lemmer, U., Jaegermann, W.

“…•The investigation of formamidinium and guanidinium lead iodide powders is reported.•Photoluminescence properties of guanidinium containing system are…”
Get full text

Synthesis and characterization of Carbon Nano Fiber/LiFePO4 composites for Li-ion batteries by BHUVANESWARI, M. S, BRAMNIK, N. N, ENSLING, D, EHRENBERG, H, JAEGERMANN, W

Get full text

Photoemission Study on the Interaction Between LiCoO2 Thin Films and Adsorbed Water by Motzko, M, Carrillo Solano, M. A, Jaegermann, W, Hausbrand, R

“…Surface layers at the cathode-electrolyte interface strongly affect the performance of the Li-ion cell. Such surface layers are found during manufacturing and…”
Get full text

LiCoPO4—3D carbon nanofiber composites as possible cathode materials for high voltage applications by Dimesso, L., Spanheimer, C., Jaegermann, W., Zhang, Y., Yarin, A.L.

“…Electrospun and carbonized 3D nanofiber mats coated with olivine structured lithium cobalt phosphate (LiCoPO4) were formed by a Pechini-assisted sol–gel…”
Get full text

CdTe thin film solar cells with reduced CdS film thickness by Krishnakumar, V., Han, J., Klein, A., Jaegermann, W.

“…A study was performed to reduce the CdS film thickness in CdTe thin film solar cells to minimize losses in quantum efficiency. Using close space sublimation…”
Get full text

XPS study of diethyl carbonate adsorption on LiCoO2 thin films by Becker, D., Cherkashinin, G., Hausbrand, R., Jaegermann, W.

“…X-ray photoelectron spectroscopy with synchrotron radiation has been used to investigate the reactivity of adsorbed diethyl carbonate (DEC) with the cathode…”
Get full text

Temperature dependent phosphorous oxynitride growth for all-solid-state batteries by Jacke, S., Song, J., Dimesso, L., Brötz, J., Becker, D., Jaegermann, W.

“…LiPON (lithium-phosphorous-oxynitride), a solid state electrolyte for all-solid state Li ion batteries, was characterised in detail by XPS core level analysis…”
Get full text

X-ray photoelectron spectroscopy of La0.5Sr0.5MnO3 by Wu, Qi-Hui, Liu, Meilin, Jaegermann, W.

“…Cathode electrode for solid oxide fuel cells (SOFC) consisting of strontium-doped lanthanum manganite (La0.5Sr0.5MnO3: LSM) was prepared with a modified…”
Get full text

Optimized chemical bath deposited CdS layers for the improvement of CdTe solar cells by Han, Junfeng, Spanheimer, C., Haindl, G., Fu, Ganhua, Krishnakumar, V., Schaffner, J., Fan, Chunjie, Zhao, Kui, Klein, A., Jaegermann, W.

“…CdS layers grown by chemical bath deposition (CBD) are treated in different ways to improve the performance of CdS/CdTe solar cells. It has been found that the…”
Get full text

XPS and UPS Characterization of the TiO2/ZnPcGly Heterointerface:  Alignment of Energy Levels by Liu, Guangming, Jaegermann, W, He, Jianjun, Sundström, Villy, Sun, Licheng

“…The electronic structure and the highest occupied molecular orbitals (HOMO)/the lowest unoccupied molecular orbitals (LUMO) alignment at the molecular…”
Get full text

Interface properties and band alignment of Cu2S/CdS thin film solar cells by Liu, Guangming, Schulmeyer, T., Brötz, J., Klein, A., Jaegermann, W.

“…The stoichiometry and electronic properties of bulk Cu2S thin films obtained by vacuum evaporation were investigated by optical spectroscopy, X-ray diffraction…”
Get full text

Photoelectron spectroscopy study of oxygen vacancy on vanadium oxides surface by Wu, Qi-Hui, Thissen, A, Jaegermann, W, Liu, Meilin

“…The thermal properties of vanadium pentoxide (V2O5) thin films have been studied by X-ray photoelectron spectroscopy (XPS) and ultraviolet photoelectron…”
Get full text

Studies on CdTe solar cell front contact properties using X-ray photoelectron spectroscopy by Krishnakumar, V., Klein, A., Jaegermann, W.

“…The chemical changes between transparent conducting oxide (TCO) and cadmium sulphide (CdS) layers were analyzed using X-ray photoelectron spectroscopy (XPS)…”
Get full text

Elementary processes at semiconductor/electrolyte interfaces: perspectives and limits of electron spectroscopy by Mayer, Th, Lebedev, M., Hunger, R., Jaegermann, W.

“…Semiconductor device properties based on electrolyte contacts or modified by electrochemical reactions are dominated by the electronic structure of the…”
Get full text

A possible way to reduce absorber layer thickness in thin film CdTe solar cells by Krishnakumar, V., Barati, A., Schimper, H.-J., Klein, A., Jaegermann, W.

“…Reducing the thin film module production cost is a strong focus in the current thin film solar cell research. One possible way to reduce the cost is minimising…”
Get full text

CdTe thin film solar cells: Interrelation of nucleation, structure, and performance by Luschitz, J., Siepchen, B., Schaffner, J., Lakus-Wollny, K., Haindl, G., Klein, A., Jaegermann, W.

“…The performance of CdTe solar cells as prototype of thin film solar cells strongly depends on film morphology. The needs for high solar cell performance using…”
Get full text

Band alignment of differently treated TCO/CdS interface by Krishnakumar, V., Ramamurthi, K., Klein, A., Jaegermann, W.

“…Studying the band offset at the interface is essential to design and optimize the front and back contacts to reduce loss of photogenerated carriers in CdTe…”
Get full text