| Title |
Teigiamus krūvininkus pernešančių organinių puslaidininkių su „inkariniais“ piridino ir fosfonrūgšties fragmentais sintezė ir tyrimas / |
| Translation of Title |
Synthesis and investigation of the organic hole transporting semiconductors containing pyridine and phosphonic acid anchoring groups. |
| Authors |
Kasparavičius, Ernestas |
| Full Text |
|
| Pages |
65 |
| Keywords [eng] |
hybrid solar cell ; perovskite ; hole-transport materials |
| Abstract [eng] |
Population growth and ever-increasing energy consumption prompts new search for cleaner and safer alternatives to fossil fuels and nuclear energy. One of the most attractive alternatives is photovoltaic systems. Because of simple manufacturing and good performance prospects perovskite solar cells received growing interest from research community. As a result of rapid development in this field, perovskite photovoltaic systems have reached 21.1% efficiency in just a few years. The purpose of this research is the synthesis of new hole-transporting materials with pyridine and phosphonate \"anchoring\" groups. These groups have been selected for their ability to bond with perovskite surface and therefore form extremely thin layers of the hole transporting material on the surface and thus improve charge transfer between perovskite and metal electrode. In this work the new hole-transporting compounds HTM1 - HTM7, containing pyridine and phosphonate \"anchoring\" fragments, have been synthesized and their thermal, optical, photophysical and photovoltaic properties investigated. HTM4 - HTM7 have been employed in the study of the effects a thin HTM film has on the perovskite stability and photoluminescence quenching. The results indicate that the functional phosphonate groups form sufficiently strong links with the perovskite surface and HTMs effectively quench the perovskite photoluminescence. Optical and photophysical investigations indicate that compounds HTM4 - HTM7 are eligible for use in the perovskite solar cell construction. |
| Dissertation Institution |
Kauno technologijos universitetas. |
| Type |
Master thesis |
| Language |
Lithuanian |
| Publication date |
2016 |
