Literature DB >> 26604080

Impact of Film Stoichiometry on the Ionization Energy and Electronic Structure of CH3 NH3 PbI3 Perovskites.

Jennifer Emara1, Tobias Schnier1, Neda Pourdavoud2, Thomas Riedl2, Klaus Meerholz1, Selina Olthof1.   

Abstract

The electronic structure of a large sample set of CH3 NH3 PbI3 -based perovskites is studied. Combined investigations by UV/X-ray photoelectron spectroscopy and X-ray diffraction reveal that interstitials present in the film lead to changes in the occupied density of states close to the valence band, which in turn influences the performance of solar cells. Changes in elemental composition tune the ionization energy of the perovskite film by almost 1 eV without introducing significant amounts of gap states.
© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Entities:  

Keywords:  X-ray diffraction; perovskites; photoelectron spectroscopy; solar cells; stoichiometry

Year:  2015        PMID： 26604080     DOI： 10.1002/adma.201503406

Source DB:  PubMed          Journal:  Adv Mater        ISSN： 0935-9648            Impact factor:   30.849


  9 in total

1.  Substrate-dependent electronic structure and film formation of MAPbI3 perovskites.

Authors:  Selina Olthof; Klaus Meerholz
Journal:  Sci Rep       Date:  2017-01-13       Impact factor: 4.379

Review 2.  Methodologies for high efficiency perovskite solar cells.

Authors:  Nam-Gyu Park
Journal:  Nano Converg       Date:  2016-06-30

3.  Influence of Hybrid Perovskite Fabrication Methods on Film Formation, Electronic Structure, and Solar Cell Performance.

Authors:  Tobias Schnier; Jennifer Emara; Selina Olthof; Klaus Meerholz
Journal:  J Vis Exp       Date:  2017-02-27       Impact factor: 1.355

4.  Suppressed decomposition of organometal halide perovskites by impermeable electron-extraction layers in inverted solar cells.

Authors:  K O Brinkmann; J Zhao; N Pourdavoud; T Becker; T Hu; S Olthof; K Meerholz; L Hoffmann; T Gahlmann; R Heiderhoff; M F Oszajca; N A Luechinger; D Rogalla; Y Chen; B Cheng; T Riedl
Journal:  Nat Commun       Date:  2017-01-09       Impact factor: 14.919

5.  Photoluminescence Study of the Photoinduced Phase Separation in Mixed-Halide Hybrid Perovskite CH3NH3Pb(BrxI1-x)3 Crystals Synthesized via a Solvothermal Method.

Authors:  Baohua Zhang; Fuqiang Guo; Junjun Xue; Lianhong Yang; Yafei Zhao; Mei Ge; Qing Cai; Bin Liu; Zili Xie; Dunjun Chen; Hai Lu; Rong Zhang; Youdou Zheng
Journal:  Sci Rep       Date:  2017-12-18       Impact factor: 4.379

6.  Low-Temperature Plasma-Assisted Atomic-Layer-Deposited SnO2 as an Electron Transport Layer in Planar Perovskite Solar Cells.

Authors:  Yinghuan Kuang; Valerio Zardetto; Roderick van Gils; Saurabh Karwal; Dibyashree Koushik; Marcel A Verheijen; Lachlan E Black; Christ Weijtens; Sjoerd Veenstra; Ronn Andriessen; Wilhelmus M M Kessels; Mariadriana Creatore
Journal:  ACS Appl Mater Interfaces       Date:  2018-08-28       Impact factor: 9.229

7.  Fractional deviations in precursor stoichiometry dictate the properties, performance and stability of perovskite photovoltaic devices.

Authors:  Paul Fassl; Vincent Lami; Alexandra Bausch; Zhiping Wang; Matthew T Klug; Henry J Snaith; Yana Vaynzof
Journal:  Energy Environ Sci       Date:  2018-09-13       Impact factor: 38.532

8.  Valence and Conduction Band Densities of States of Metal Halide Perovskites: A Combined Experimental-Theoretical Study.

Authors:  James Endres; David A Egger; Michael Kulbak; Ross A Kerner; Lianfeng Zhao; Scott H Silver; Gary Hodes; Barry P Rand; David Cahen; Leeor Kronik; Antoine Kahn
Journal:  J Phys Chem Lett       Date:  2016-07-06       Impact factor: 6.475

9.  Atomic Scale Investigation of the CuPc-MAPbX3 Interface and the Effect of Non-Stoichiometric Perovskite Films on Interfacial Structures.

Authors:  Collin Stecker; Zhenyu Liu; Jeremy Hieulle; Siming Zhang; Luis K Ono; Guofeng Wang; Yabing Qi
Journal:  ACS Nano       Date:  2021-08-17       Impact factor: 15.881
  9 in total

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