Rivera Tito H. A., Hernández-Sosa G., Romero-Nieto C., Regulska E., Jürgensen N., Zimmermann J., Salazar-Salinas K., Quintana Caceda M. E., Extraction of 2′-O-apiosyl-6′-O-crotonic acid-betanin from the ayrampo seed (Opuntia soehrensii) cuticle and its use as an emitting layer in an organic light-emitting diode, RSC Advances, 2020, 10(60):36695-36703, doi: 10.1039/d0ra05543c
The paper describes the isolation of a pigment from seed coverings and its use in an OLED prototype. The results concern light emission by the device using this material.