Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Wolfgang Fränzel"'
Publikováno v:
The Journal of Physical Chemistry Letters. 9:4808-4813
We present the growth, phase transitions, and thermal decomposition of CsPbX3 (X = I, Br) thin films monitored by in situ X-ray diffraction (XRD). The perovskite films are prepared in vacuum via co-evaporation of PbX2 and CsX (X = I, Br) onto glass s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d3e3fdf7e68fed2e024542d05c0052dd
https://doi.org/10.1021/acs.jpclett.8b02059
https://doi.org/10.1021/acs.jpclett.8b02059
Publikováno v:
Journal of Materials Chemistry A. 6:11496-11506
We present the identification of crystalline phases by in situ X-ray diffraction during growth and monitor the phase evolution during subsequent thermal treatment of CH3NH3PbX3 (X = I, Br, Cl) perovskite thin films. The thin films are prepared by vac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b999d61db55f2838b514b210930065e8
https://doi.org/10.1039/c8ta02775g
https://doi.org/10.1039/c8ta02775g
Autor:
Stefan Hartnauer, Torsten Hölscher, Setareh Zahedi-Azad, Matthias Maiberg, Wolfgang Fränzel, Enrico Jarzembowski, Roland Scheer
Publikováno v:
Thin Solid Films. 633:208-212
The decay of the room-temperature time-resolved photoluminescence (TRPL) on thin-film semiconductors such as Cu(In,Ga)Se2 and Cu2ZnSnSe4 often is bi-exponential. This can be traced back either to fluctuations of the electrostatic potential or to mino
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::acd84bde8a67c0c92ff7dc05c6208e70
https://doi.org/10.1016/j.tsf.2017.02.002
https://doi.org/10.1016/j.tsf.2017.02.002
Publikováno v:
Thin Solid Films. 633:61-65
We apply the concept of point contact solar cells to a model system having 190 nm thick Cu(In,Ga)Se 2 (CIGSe) films by using a SiO 2 back side film with periodic openings to the molybdenum layer being the electrical contact. The openings are plasma e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5436cf2fb02f0dda8d7ff76a5c58cd64
https://doi.org/10.1016/j.tsf.2016.11.003
https://doi.org/10.1016/j.tsf.2016.11.003
Publikováno v:
The journal of physical chemistry letters. 9(16)
We present the growth, phase transitions, and thermal decomposition of CsPbX
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::94151f4c356d4f45b339fb06bf58108c
https://pubmed.ncbi.nlm.nih.gov/30084256
https://pubmed.ncbi.nlm.nih.gov/30084256
Publikováno v:
The Journal of Physical Chemistry Letters. 5:3308-3312
Perovskite solar cells based on (CH3NH3)Pb(I,Cl)3 have recently demonstrated rapidly increasing cell efficiencies. Here, we show progress identifying phases present during the growth of (CH3NH3)Pb(I,Cl)3 perovskite thin films with the vacuum-based co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::48745cc18d6efc30513f323f82b7bf0c
https://doi.org/10.1021/jz5017312
https://doi.org/10.1021/jz5017312
Autor:
Roland Scheer, Wolfgang Fränzel, Bodo Fuhrmann, Thomas Schneider, Enrico Jarzembowski, Hartmut S. Leipner
Publikováno v:
Light, Energy and the Environment.
An intermediate SIO2 layer with periodical openings was prepared between the absorber and back contact of a CIGSe solar cell. The enhanced absorption through this layer was investigated experimentally and using RCWA simulations.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0103a5ec3bb205d8134368aacbdc388b
https://doi.org/10.1364/pv.2016.pw3b.4
https://doi.org/10.1364/pv.2016.pw3b.4
Autor:
Hartmut S. Leipner, Gunnar Leibiger, Wolfgang Fränzel, I. Ratschinski, J. Michler, Frank Heyroth, Frank Habel, W. Mook
Publikováno v:
physica status solidi c. 10:76-79
(0001) GaN single crystals having a thickness of 3.4 mm and a density of in-grown dislocations of 3.5 x 106 cm-2 have been deformed at room temperature using a cube corner, a Berkovich and a Vickers indenter, respectively. Cube corner indentations we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::696b493c43fc78183282bc28b8010bae
https://doi.org/10.1002/pssc.201200388
https://doi.org/10.1002/pssc.201200388
Autor:
I. Ratschinski, Wolfgang Fränzel, Gunnar Leibiger, Frank Habel, Frank Heyroth, Hartmut S. Leipner
Publikováno v:
Materials Science Forum. 725:67-70
(0001) GaN bulk crystals with a thickness of 3.4 mm and a density of in-grown dislocations of 3.5·106cm-2have been deformed at room temperature using a Vickers indenter at two different sample orientations in relation to the indenter. Dislocations a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6a47d680deb237e3337475349f7ea4cf
https://doi.org/10.4028/www.scientific.net/msf.725.67
https://doi.org/10.4028/www.scientific.net/msf.725.67
Publikováno v:
Materials Science Forum. 725:199-202
Silicon polymorphs have been prepared by means of scratching or indentation of Si(100) surfaces. Different indenter types have been used in order to validate the independence of silicon polymorph formation from indenter geometry. The formation of sil
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::36b2685ebca3639861d97afd59825216
https://doi.org/10.4028/www.scientific.net/msf.725.199
https://doi.org/10.4028/www.scientific.net/msf.725.199