The study of hybrid solar cells with enhance performance based on heterojunction improvement

  • 洪 嘉詳

Student thesis: Doctoral Thesis


Interface improvement of hybrid solar cells (HSCs) by using the cheap method via nitric acid solution to grow thin silicon dioxide between the silicon nanowires (SiNWs) and PEDOT:PSS was performed The power conversion efficiency (PCE) of HSCs without applying surface treatment was 10 06% open voltage (Voc) of 0 526V current density of 32 79 mA/cm2 After exploiting surface treatment by immersing 300 nm Si nanowires (SiNWs) into 16 25% of HNO3 solutions the tremendous enhancement on the performance of SiNWs/PEDOT:PSS based HSCs with PCE of 12 41% Voc of 0 546V current density of 36 36 mA/cm2 fill factor of 62 5% was demonstrated These results reveal that the silicon dioxide would eliminate the defects and dangling bonds appearing in SiNWs and decrease the interface recombination to create the well-established p-n junction In addition the results elucidate that this facile interfacial treatment could enhance the open voltage remarkably as well as reach the superior PCE
Date of Award2019
Original languageEnglish
SupervisorChia-Yun Chen (Supervisor)

Cite this