Reducing Nonradiative Recombination Losses in Tin-Based Perovskite LEDs Utilizing a Self-Assembled Monolayer.

ABSTRACT: Tin-based perovskites are emerging as less-toxic alternatives to their lead-based counterparts for optoelectronic devices, such as solar cells and light-emitting diodes (LEDs). However, despite their great potential, the efficiency of pure red tin-based perovskite LEDs (Sn-LEDs) still lags behind that of lead-based perovskite LEDs (Pb-LEDs), partly due to the poor electron blocking at the PEDOT:PSS/perovskite interface. This leads to detrimental nonradiative recombination pathways that limit the performance of the LEDs. In this study, we replaced the conventional PEDOT:PSS layer with the self-assembled monolayer (SAM) EADR03, presenting, to the best of our knowledge, the first report of a SAM employed as a hole-selective layer in Sn-LEDs. EADR03 simultaneously acted as an efficient electro

SUBMITTER: Galve-Lahoz S 

PROVIDER: S-EPMC12598692 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature