The Application Of The Interface Layer Materials And Its Effect To The Performance In The New Solar Cells

With the continous development of global science and technology innovation demand for the effective utilization of new energy is increasing. As we all know, organic solar cells(OPV)and organometal perovskite solar cells are regarded as new types of solar cells, in recent years, some researchers have been focusing on the investigation of these solar cells development. Through the study of new solar cell devices physics. The researchers expect to achieve a breakthrough in the field of new energy sources and lay the fundations. Recently, a variety of device structure, including organic bulk heterojunction solar cells, and planar and mesoporous organometal perovskite solar cells have been extensively investigated and developed. The device interface layer also plays a very prominent role, both in improving efficiency and stability level of the device.In this paper, we mainly focus on the role of the interface layers for two kinds of solar devices. Interface layers plays a key role of exction generation. Experimental study of the interfacial layer, can provides us a good understanding of mechanism portion of the device:1. By selecting the small organic molecules with a special groups, saccharin was dissolved into the methanol solvent. By spin-coating the surface of the active layer. The electron transport properties are improved, compared to the device without the electron transport layer. The efficiency of the device with saccharin PCE is increased from 4.69% to 8.54%.2.(Zn O)modified nanocrystalline layer, the electron transport layer a ZnO nanocrystals / PVP layered structure by introducing PVPe. Compared to the zinc oxide nanocrystal devices.Our stacked device efficiency PCE is increased from 8.08% to 9.10%.3. Through the introduction of methionine to PEDOT: PSS, for the study of organometal perovskite solar cells, the effect of doped hole transport layer has also been improved to some extent. With respect to the pure PEDOT: PSS hole transport layer, the efficiency is also achieved from 9.79% to 12.62%.