Hellmann, Tim ; Das, Chittaranjan ; Abzieher, Tobias ; Schwenzer, Jonas A. ; Wussler, Michael ; Dachauer, Ralph ; Paetzold, Ulrich W. ; Jaegermann, Wolfram ; Mayer, Thomas (2020):
The Electronic Structure of MAPI‐Based Perovskite Solar Cells: Detailed Band Diagram Determination by Photoemission Spectroscopy Comparing Classical and Inverted Device Stacks.
In: Advanced Energy Materials, p. 2002129. ISSN 1614-6832,
DOI: 10.1002/aenm.202002129,
[Article]

Das, Chittaranjan ; Wussler, Michael ; Hellmann, Tim ; Mayer, Thomas ; Zimmermann, Iwan ; Maheu, Clément ; Nazeeruddin, Mohammad Khaja ; Jaegermann, Wolfram (2020):
Surface, Interface, and Bulk Electronic and Chemical Properties of Complete Perovskite Solar Cells: Tapered Cross-Section Photoelectron Spectroscopy, a Novel Solution.
In: ACS Applied Materials & Interfaces, 12 (36), pp. 40949-40957. ISSN 1944-8244,
DOI: 10.1021/acsami.0c11484,
[Article]

Das, Chittaranjan ; Kot, Malgorzata ; Hellmann, Tim ; Wittich, Carolin ; Mankel, Eric ; Zimmermann, Iwan ; Schmeisser, Dieter ; Khaja Nazeeruddin, Mohammad ; Jaegermann, Wolfram (2020):
Atomic Layer-Deposited Aluminum Oxide Hinders Iodide Migration and Stabilizes Perovskite Solar Cells.
In: Cell Reports Physical Science, 1 (7), p. 100112. ISSN 26663864,
DOI: 10.1016/j.xcrp.2020.100112,
[Article]

Kumar, Sandeep ; Dagli, Daghan ; Dehm, Simone ; Das, Chittaranjan ; Wei, Li ; Chen, Yuan ; Hennrich, Frank ; Krupke, Ralph (2020):
Vanishing Hysteresis in Carbon Nanotube Transistors Embedded in Boron Nitride/Polytetrafluoroethylene Heterolayers.
In: Physica status solidi (RRL) - Rapid research letters, 14 (8), pp. 2000193-1-2000193-7. Wiley-VCH Verlag, ISSN 1862-6254,
DOI: 10.1002/pssr.202000193,
[Article]

Wussler, Michael ; Mayer, Thomas ; Das, Chittaranjan ; Mankel, Eric ; Hellmann, Tim ; Prabowo, Chandra ; Zimmermann, Iwan ; Nazeeruddin, Mohammad Khaja ; Jaegermann, Wolfram (2020):
Tapered Cross‐Section Photoelectron Spectroscopy of State‐of‐the‐Art Mixed Ion Perovskite Solar Cells: Band Bending Profile in the Dark, Photopotential Profile Under Open Circuit Illumination, and Band Diagram.
In: Advanced Functional Materials, 30 (27), p. 1910679. ISSN 1616-301X,
DOI: 10.1002/adfm.201910679,
[Article]

Chakraborty, Biswarup ; Kalra, Shweta ; Beltrán‐Suito, Rodrigo ; Das, Chittaranjan ; Hellmann, Tim ; Menezes, Prashanth W. ; Driess, Matthias (2020):
A Low‐Temperature Molecular Precursor Approach to Copper‐Based Nano‐Sized Digenite Mineral for Efficient Electrocatalytic Oxygen Evolution Reaction.
In: Chemistry – An Asian Journal, 15 (6), pp. 852-859. ISSN 1861-4728,
DOI: 10.1002/asia.202000022,
[Article]

Hellmann, Tim ; Wussler, Michael ; Das, Chittaranjan ; Dachauer, Ralph ; El-Helaly, Islam ; Mortan, Claudiu ; Mayer, Thomas ; Jaegermann, Wolfram (2019):
The difference in electronic structure of MAPI and MASI perovskites and its effect on the interface alignment to the HTMs spiro-MeOTAD and CuI.
In: Journal of Materials Chemistry C, 7 (18), pp. 5324-5332. ISSN 2050-7526,
DOI: 10.1039/C8TC06332J,
[Article]

Dimesso, Lucangelo ; Das, Chittaranjan ; Mayer, Thomas ; Jaegermann, Wolfram (2018):
Investigation of earth-alkaline (EA = Mg, Ca, Sr) containing methylammonium tin iodide perovskite systems.
In: Journal of Materials Science, 53 (1), pp. 356-368. ISSN 0022-2461,
DOI: 10.1007/s10853-017-1545-0,
[Article]

Dimesso, Lucangelo ; Stöhr, Maximilian ; Das, Chittaranjan ; Mayer, Thomas ; Jaegermann, Wolfram (2017):
Investigation on the properties of hybrid CH3NH3SnxI3 (0.9 ≤ x ≤ 1.4) perovskite systems.
In: Journal of Materials Research, 32 (22), pp. 4132-4141. ISSN 0884-2914,
DOI: 10.1557/jmr.2017.418,
[Article]