Study on Phthalocyanine and P3HT/Si Substrate Hybrid Solar Cells

• Main Authors: Chung-Chieh Wang, 王俊傑
• Other Authors: 陳隆建
• Format: Others
• Language: zh-TW
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/8wb9cs

博士 === 國立臺北科技大學 === 光電工程系研究所 === 97 === The present paper reports on the photovoltaic properties of zinc phthalocyanine (ZnPc) films with various dopants, sandwiched between indium tin oxide (ITO) and n-type silicon (Si) substrates were investigated. For the ITO/p-ZnPc/n-Si sandwich structure solar cells, which ZnPc doped with I2 and without post-annealing, the measured parameters were the short-circuit current density (Jsc), the open-circuit voltage (Voc), the maximum output power (Pm), the fill factor (FF) and the efficiency (η), which had values of were 28.8 mA/cm2, 0.46 V, 5.55 mW/cm2, 0.42 and 5.55 %,. The DSSCs with 5 wt% ZnSe QDs exhibited optimum results. The short-circuit current density Jsc = 4.83 mA/c , the open-circuit voltage Voc = 0.44, the fill factor FF = 0.301, and the power conversion efficiencies η = 0.64%. By adding gold nanoparticles layer between TiO2 and dyes could promote short-circuit current density Jsc and reduce the open-circuit voltage Voc. Finally, =5.79 mA/cm2, Voc = 0.32, FF = 0.34 and η = 0.64 % were obtained. Solar cells are often covered with antireflective surfaces to enhance their performance. Porous silicon (PS) samples were prepared by DC electrochemical etching of p silicon wafers under different controlled voltage. The results indicate that the reflection of light emissions is related with etched voltage and time. We were fabricated, which has a reflectance below 8% over a broad band from 280 to 800nm. The solar cells were made of a porous silicon covered an organic layer to be a p-n junction. Finally, the best measured parameters of PV cells with P3HT/PS structure were the short-circuit current density Jsc = 36.8mA/cm2, the open-circuit voltage Voc = 0.34, FF = 0.225, and the efficiency η =2.81 %