高效率且半透光之反相有機太陽能電池製程研究

• Main Authors: Jhih-Sheng Lee, 李智聖
• Other Authors: Sheng-Fu Horng
• Format: Others
• Language: zh-TW
• Online Access: http://ndltd.ncl.edu.tw/handle/47851951361627234906

碩士 === 國立清華大學 === 電子工程研究所 === 96 === Although the efficiency of inorganic solar cells have been reached 24.7% and even 34% for tandem cells, it is not suitable for commercial application due to its high cost. Much more attention has been put to organic solar cells due to its simple and cost-effective fabrication process. Furthermore, flexible substrates and the potential to scale up to large area make it a promising alternative to silicon-based solar cell. In our study, cesium carbonate (Cs2CO3) and molybdenum oxide (MoO3) have been used as electron- and hole- transport layers. Besides, they also change work function of ITO and metal electrode by forming a thin dipole layer. A bulk heterojunction BHJ consisting blending of P3HT and PCBM in 1, 2-Dichlorobenzene spin-coated on ITO-coated glass is used as our active layer. For device with silver as cathode, the best PCE we studied is almost 3.7%. For device with gold as cathode, we have 2.8% for glass-illumination and 1.8% for metal-illumination. Further, Transmittance is up to 50%~65% within the spectrum from 650nm to 850nm. It would be our specific predominance and make us have more thoughts and choices to fulfill highly-efficient tandem cells.