ORCID Profile
0000-0002-3038-9462
Current Organisation
IMEC
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Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7TA01651D
Abstract: All-thin film perovskite/CIGS multijunction solar modules, combining a semi-transparent perovskite top solar module stacked on a CIGS bottom solar module, are a promising route to surpass the efficiency limits of single-junction thin-film solar modules.
Publisher: Elsevier BV
Date: 10-2012
Publisher: American Chemical Society (ACS)
Date: 24-04-2018
Abstract: This paper reports on the impact of outdoor temperature variations on the performance of organo metal halide perovskite solar cells (PSCs). It shows that the open-circuit voltage ( V
Publisher: MDPI AG
Date: 22-07-2013
DOI: 10.3390/MA6073022
Publisher: Elsevier BV
Date: 12-2016
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 05-2020
Publisher: Springer Science and Business Media LLC
Date: 06-12-2022
DOI: 10.1038/S41467-022-35255-9
Abstract: The black perovskite phase of CsPbI 3 is promising for optoelectronic applications however, it is unstable under ambient conditions, transforming within minutes into an optically inactive yellow phase, a fact that has so far prevented its widespread adoption. Here we use coarse photolithography to embed a PbI 2 -based interfacial microstructure into otherwise-unstable CsPbI 3 perovskite thin films and devices. Films fitted with a tessellating microgrid are rendered resistant to moisture-triggered decay and exhibit enhanced long-term stability of the black phase (beyond 2.5 years in a dry environment), due to increasing the phase transition energy barrier and limiting the spread of potential yellow phase formation to structurally isolated domains of the grid. This stabilizing effect is readily achieved at the device level, where unencapsulated CsPbI 3 perovskite photodetectors display ambient-stable operation. These findings provide insights into the nature of phase destabilization in emerging CsPbI 3 perovskite devices and demonstrate an effective stabilization procedure which is entirely orthogonal to existing approaches.
No related grants have been discovered for Robert Gehlhaar.