Lasing in the space charge limited current regime

Alex J. Grede, Noel C. Giebink

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


We introduce an analytical model for ideal organic laser diodes based on the argument that their intrinsic active layers necessitate operation in the bipolar space charge-limited current regime. Expressions for the threshold current and voltage agree well with drift-diffusion modeling of complete p-i-n devices and an analytical bound is established for laser operation in the presence of annihilation and excited-state absorption losses. These results establish a foundation for the development of organic laser diode technology.

Original languageEnglish (US)
Article numberL121301
JournalPhysical Review B
Issue number12
StatePublished - Mar 3 2021

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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