The many facets of molecular orientation in organic optoelectronics

A Hofmann, M Schmid, W Brütting - Advanced Optical Materials, 2021‏ - Wiley Online Library
Over the years, organic optoelectronics have evolved into a mature technology with a wide
range of applications. Their building blocks, namely organic semiconductors, are distinctly …

Opto-electronic characterization of third-generation solar cells

M Neukom, S Züfle, S Jenatsch… - Science and Technology …, 2018‏ - Taylor & Francis
We present an overview of opto-electronic characterization techniques for solar cells
including light-induced charge extraction by linearly increasing voltage, impedance …

Efficient and stable hybrid perovskite-organic light-emitting diodes with external quantum efficiency exceeding 40 per cent

L Kong, Y Luo, Q Wu, X ** of hole transport layers
Y Noguchi, A Hofmann… - Advanced Optical Materials, 2022‏ - Wiley Online Library
It is demonstrated that dipolar do** of hole transport layers (HTLs) controls the density and
polarity of the accumulated charge at the critical interface between the HTL and the emission …

Understanding and engineering spontaneous orientation polarization in organic light-emitting devices

E Pakhomenko, S He, RJ Holmes - Chemical Physics Reviews, 2023‏ - pubs.aip.org
Organic light-emitting devices (OLEDs) are a ubiquitous technology for displays with
growing application in a variety of other spaces. The future success of this technology …

Controlling Spontaneous Orientation Polarization in Organic Semiconductors─ The Case of Phosphine Oxides

A Cakaj, M Schmid, A Hofmann… - ACS Applied Materials & …, 2023‏ - ACS Publications
Upon film growth by physical vapor deposition, the preferential orientation of polar organic
molecules can result in a nonzero permanent dipole moment (PDM) alignment, causing a …

Observation of spontaneous orientation polarization in evaporated films of organic light-emitting diode materials

K Osada, K Goushi, H Kaji, C Adachi, H Ishii… - Organic …, 2018‏ - Elsevier
The molecular orientation in organic semiconductor films determines device performances.
In particular, the spontaneous orientation of a permanent dipole moment (PDM) along the …

Reducing spontaneous orientational polarization via semiconductor dilution improves OLED efficiency and lifetime

EO Afolayan, I Dursun, C Lang, E Pakhomenko… - Physical Review …, 2022‏ - APS
Spontaneous orientational polarization (SOP) in the electron-transport layer (ETL) of organic
light-emitting diodes (OLEDs) is increasingly recognized as a key factor influencing their …