Cyclopentadiene-Based Hole-Transport Material for Perovskit Solar Cells with Efficiencies over 23%

Ulm University

A structurally novel molecular hole transport material was efficiently and inexpensively synthesized from readily available starting materials such as cyclopentadiene and aniline. Due to excellent optoelectronic, thermal, and transport properties not only high efficiencies of 23.1% have been reached in perovskite solar cells, but also respectable long-term stability. The exciting results are described in our latest publication with the title „Cyclopentadiene-based hole-transport material for cost-reduced stabilized perovskite solar cells with power conversion efficiencies over 23%” which just appeared online in Advanced Energy Materials 2021, doi/10.1002/aenm.202003953.