Bekele Hailegnaw
Bekele Hailegnaw
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Rain on methylammonium lead iodide based perovskites: possible environmental effects of perovskite solar cells
B Hailegnaw, S Kirmayer, E Edri, G Hodes, D Cahen
The journal of physical chemistry letters 6 (9), 1543-1547, 2015
Ultrafast small-scale soft electromagnetic robots
G Mao, D Schiller, D Danninger, B Hailegnaw, F Hartmann, T Stockinger, ...
Nature communications 13 (1), 4456, 2022
An autonomous wearable biosensor powered by a perovskite solar cell
J Min, S Demchyshyn, JR Sempionatto, Y Song, B Hailegnaw, C Xu, ...
Nature electronics 6 (8), 630-641, 2023
Impedance spectroscopy of perovskite solar cells: studying the dynamics of charge carriers before and after continuous operation
B Hailegnaw, NS Sariciftci, MC Scharber
physica status solidi (a) 217 (22), 2000291, 2020
Designing ultraflexible perovskite X‐ray detectors through interface engineering
S Demchyshyn, M Verdi, L Basiricò, A Ciavatti, B Hailegnaw, D Cavalcoli, ...
Advanced Science 7 (24), 2002586, 2020
The influence of perovskite precursor composition on the morphology and photovoltaic performance of mixed halide MAPbI3-xClx solar cells
S Tombe, G Adam, H Heilbrunner, C Yumusak, DH Apaydin, B Hailegnaw, ...
Solar Energy 163, 215-223, 2018
Nanoscale charge accumulation and its effect on carrier dynamics in tri-cation perovskite structures
D Toth, B Hailegnaw, F Richheimer, FA Castro, F Kienberger, ...
ACS Applied Materials & Interfaces 12 (42), 48057-48066, 2020
Inverted (p–i–n) perovskite solar cells using a low temperature processed TiO x interlayer
B Hailegnaw, G Adam, H Heilbrunner, DH Apaydin, C Ulbricht, ...
RSC advances 8 (44), 24836-24846, 2018
Role of additives and surface passivation on the performance of perovskite solar cells
S Abicho, B Hailegnaw, GA Workneh, T Yohannes
Materials for Renewable and Sustainable Energy 11 (1), 47-70, 2022
Depolymerization of cellulose in water catalyzed by phenylboronic acid derivatives
N Levi, AM Khenkin, B Hailegnaw, R Neumann
ACS Sustainable Chemistry & Engineering 4 (10), 5799-5803, 2016
Acetylacetone improves the performance of mixed halide perovskite solar cells
B Hailegnaw, G Adam, D Wielend, JD Pedarnig, NS Sariciftci, ...
The Journal of Physical Chemistry C 123 (39), 23807-23816, 2019
Elucidating the Origins of High Preferential Crystal Orientation in Quasi‐2D Perovskite Solar Cells
LE Lehner, S Demchyshyn, K Frank, A Minenkov, DJ Kubicki, H Sun, ...
Advanced Materials 35 (5), 2208061, 2023
Optimization, Characterization, and Biological Applications of Silver Nanoparticles Synthesized Using Essential Oil of Aerial Part of Laggera tomentosa
YH Gonfa, AA Gelagle, B Hailegnaw, SA Kabeto, GA Workeneh, ...
Sustainability 15 (1), 797, 2023
Optoelectronic properties of layered perovskite solar cells
B Hailegnaw, S Paek, KT Cho, Y Lee, F Ongül, MK Nazeeruddin, ...
Solar Rrl 3 (8), 1900126, 2019
Anti-Stokes photoluminescence study on a methylammonium lead bromide nanoparticle film
AJ Prochazkova, F Mayr, K Gugujonovic, B Hailegnaw, J Krajcovic, ...
Nanoscale 12 (31), 16556-16561, 2020
Improving the performance of perovskite solar cells using a polyphosphazene interfacing layer
B Hailegnaw, V Poscher, C Ulbricht, H Seelajaroen, I Teasdale, Y Salinas, ...
physica status solidi (a) 216 (20), 1900436, 2019
In: Nature Electronics
J Min, S Demchyshyn, J Sempionatto, Y Song, B Hailegnaw, C Xu, ...
Nature Electronics, 2023
Ion-driven nanograin formation in early-stage degradation of tri-cation perovskite films
F Richheimer, D Toth, B Hailegnaw, MA Baker, RA Dorey, F Kienberger, ...
Nanoscale 14 (7), 2605-2616, 2022
Effect of short chain iodoalkane solvent additives on photovoltaic performance of poly (3-hexylthiophene) and phenyl-c61-butyric acid methyl ester based bulk heterojunction …
B Hailegnaw, G Adam, T Yohannes
Thin Solid Films 589, 272-277, 2015
Flexible quasi-2D perovskite solar cells with high specific power and improved stability for energy-autonomous drones
B Hailegnaw, S Demchyshyn, C Putz, LE Lehner, F Mayr, D Schiller, ...
Nature Energy, 1-14, 2024
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