| 초록 |
Though there have been a plenty of organic HTMs, the HTMs without utilization of additives/dopants are very limited, thus the systematic design strategy is required to accomplish such HTMs with suitable ionization potential energies, high hole mobility and conductivity, which plays a pivotal role in enhancing the device performance and stability and reducing the overall cost of the device. Here, we designed and synthesized a new class of organic small molecular HTM, denoted by PyThTPA, and characterized by 1H and 13C NMR. UV-vis absorption spectra reveal that PyThTPA has high absorption coefficient, which is higher than that of state of the art HTM Spiro-OMeTAD. TGA and DSC curves reveal that PyThTPA have high thermal and morphological stabilities. In addition, PyThTPA owns high hole mobility and conductivity. Owing to its pretty much interesting features, we utilized PyThTPA as a HTM in PSCs, and the primary results show impressive device performance. |
