| Abstract [eng] |
During more than a decade of research, many HTMs of various structures were developed for PSCs; however, most of them are expensive or require multi-step synthesis, or both. The two most commonly used materials as p-type semiconductors, spiro-MeOTAD and PTAA, are no exception to the rule. Furthermore, spiro-MeOTAD raises long-term stability concerns due to the dopants which are necessary to achieve great optoelectronic performance. Despite the aforementioned issues, PSCs scientific community seems to have stagnated on spiro-MeOTAD and PTAA as HTMs of choice while in the same time demanding cheaper, more efficient and more stable alternatives for commercial applications. In this PhD thesis, various HTMs have been designed and synthesized in hope to eliminate at least some flaws of the predominantly used p-type charge carriers. |
