DOE OSTI · 2274846
Charged Hole‐Transporting Materials Based on Imidazolium for Defect Passivation in Inverted Perovskite Solar Cells
Abstract
The hole‐transporting material (HTM) in perovskite solar cells (PSCs) provides an ideal interface with the perovskite layer for hole collection while influencing the perovskite crystalline structure and morphology. This article presents SIM and DIM, two new dopant‐free imidazolium‐based HTMs with charged units accompanied by counter ions that show the potential to function as ionic HTMs and ionic liquid additives and help improve the efficiency and stability of inverted PSCs. DIM‐based PSCs demonstrates exceptional performance with a high‐power conversion efficiency of 19.15%, attributed to improved passivation of perovskite interface defects. Furthermore, these new imidazolium salt‐based HTMs can be manufactured economically, making them a viable option for mass production and PSC commercialization.
Keep this discovery
Explore connections, maps & timelines
Tingare, Yogesh S., Li, Meng‐Che, Teng, Sheng‐Hung, Lin, Ja‐Hon, Su, Chaochin, Lin, Shan‐Jung, Lew, Xin‐Rui, Tsai, Hsinhan, Ghosh, Dibyajyoti, Nie, Wanyi, Yeh, Bao‐Lin, Li, Wen‐Ren. 2023-12-28. Charged Hole‐Transporting Materials Based on Imidazolium for Defect Passivation in Inverted Perovskite Solar Cells. https://doi.org/10.1002/solr.202300817
Cite the original work for its findings. Save a collection to share your selection of sources.