Best practices in the measurement of circularly polarised photodetectors

Abstract

Circularly polarised light will revolutionise emerging technologies, including encrypted light-based communications, quantum computing, bioimaging and multi-channel data processing. In order to make use of these remarkable opportunities, high performance photodetectors...

Spatiotemporal Mapping of Efficient Chiral Induction by Helicene‐Type Additives in Copolymer Thin Films

“…Supramolecular copolymer thin films exhibiting a strong chiral response are of considerable interest for diverse optoelectronic and photonic applications, such as OLEDs with circularly polarized luminescence (CPL), [1–5] liquid‐crystal lasers, [6] photodetectors, [7] and polarization‐dependent security features [8] . In principle, there are two approaches to obtain such chiral copolymer systems.…”

Semi‐Transparent, Chiral Organic Photodiodes with Incident Direction‐Dependent Selectivity for Circularly Polarized Light

“…[ 1–5 ] Chiral organic π‐conjugated molecules have emerged as fascinating semiconducting materials that may be used to generate and detect light of one particular circular polarization. [ 6–10 ] Especially, non‐fullerene acceptors with excellent optical and electronic properties are considered as promising candidates for developing novel chiral functional materials. [ 11–19 ] The inherent chiroptical properties of chiral organic materials can help to simplify the design of the optical devices by eliminating the need for separate polarizers and retarders.…”

“…[ 28–32 ] Yet, perhaps counterintuitively, opposite signs for g and g abs were found for some materials. [ 33–36 ] It was also found that g can change sign depending on the thickness of the active layer. [ 33 ]…”

“…[1][2][3][4][5] Chiral organic π-conjugated molecules have emerged as fascinating semiconducting materials that may be used to generate and detect light of one particular circular polarization. [6][7][8][9][10] Especially, non-fullerene acceptors with excellent optical and electronic properties are considered as promising candidates for…”

Räumliche und zeitliche Kartierung effizienter chiraler Induktion durch helikale Additive in dünnen Copolymerfilmen

“…Supramolekulare Copolymer‐Dünnschichten mit starker chiraler Aktivität sind von großem Interesse für verschiedene optoelektronische und photonische Anwendungen, wie OLEDs mit zirkular polarisierter Lumineszenz (CPL), [1–5] Flüssigkristall‐Laser, [6] Photodetektoren, [7] und polarisationsabhängige Sicherheitsmerkmale [8] . Prinzipiell gibt es zwei Ansätze, um solche chirale Copolymersysteme zu erhalten.…”