121st General Meeting of the KCS

Type Poster Presentation
Area Material Chemistry
Room No. Event Hall
Time 4월 20일 (금요일) 11:00~12:30
Code MAT.P-408
Subject Highly efficient organic-inorganic hybrid solar cell using atomic layer infiltration
Authors YEONGEUN BAK, Myong Mo Sung1,*
Chemistry , Hanyang University, Korea
1Department of Chemistry, Hanyang University, Korea
Abstract The sun is alternative energy source to solve the growing global need for energy. The advantage of solar energy is sustainable, reliable and long-term supply of energy, in contrast to conventional resources such as fossil fuels. Above all, Si solar cell is the most widely used as energy source due to its high efficiency. But it has a disadvantage; expensive manufacturing cost and limitation of application to flexible or transparent devices. So other types of solar cells are also being researched, Sb2S3 solar cell is promising candidate for next generation solar cells overcoming the above disadvantage of Si solar cell. The biggest problem of commercialization of Sb2S3 solar cell is lower efficiency than Si solar cells. To solve this problem, previous studies about interfacial engineering have been proceeding using various organic, inorganic materials. In this study, we applied new organic-inorganic hybrid material nickel-4-mercaptophenol (Ni-4MP), as an interfacial engineering material into Sb2S3-hole transport material (HTM) interface. Ni-4MP thin film is deposited using ALD(atomic layer deposition) method. For infiltrate precursors into FTO/mp-TiO2/Sb2S3 structure, exposing procedure is added. The reference cell structure is FTO/mp-TiO2/Sb2S3/P3HT/Au. We measured the photo conversion efficiency using solar simulator with source-meter for comparing two samples. And then we observed impedance measurement with variation of voltage for confirming the effect of Ni-4MP on Sb2S3 solar cell. As a result, electron lifetime calculated from this measurement proof the longer lifetime of electron after insert Ni-4MP as interfacial engineering material.
E-mail chppp7@hanyang.ac.kr