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cond-mat.mtrl-sci2025
Control of Spontaneous Orientation Polarization in Organic Semiconductors: The Role of Molecular Structure and Film Growth Conditions
Albin Cakaj, Markus Schmid, Alexander Hofmann +1
Spontaneous orientation polarization (SOP) occurs when molecules with a finite permanent dipole moment are grown as thin films by physical vapor deposition and their alignment is s…
cond-mat.mtrl-sci2024
Enhancement of Spontaneous Orientation Polarization in Organic Semiconductor Mixtures
Alexander Hofmann, Albin Cakaj, Lea Kolb +2
The alignment of permanent dipole moments and the resulting spontaneous orientation polarization (SOP) is commonly observed in evaporated neat films of polar organic molecules and…
cond-mat.mtrl-sci2023
Controlling Spontaneous Orientation Polarization in Organic Semiconductors -- The Case of Phosphine Oxides
Albin Cakaj, Markus Schmid, Alexander Hofmann +1
Upon film growth by physical vapor deposition, the preferential orientation of polar organic molecules can result in a non-zero permanent dipole moment (PDM) alignment, causing a m…