The influences of dopants on solar cells

• Main Authors: Shih-Yu Liao, 廖士宇
• Other Authors: Yu-Chiang Chao
• Format: Others
• Language: zh-TW
• Published: 2017
• Online Access: http://ndltd.ncl.edu.tw/handle/45228866216522156637

碩士 === 中原大學 === 奈米科技碩士學位學程 === 105 === Perovskite solar cells are suitable for large-area massive produc-tion because of their low-temperature and low-cost fabrication proce-dures. It is essential to control the crystallinity in order to enhance the device efficiency. In this work, we control the crystallinity by doping organic molecules in perovskite precursor solutions. In formamidini-um-based perovskite materials, we found that 2 wt% graphene quan-tum dots can lead to a larger grain size and an optimized device effi-ciency. Similar trend can also be observed in methylammonium-based perovskite materials. The average device efficiency can be boosted from 12.36% to 14.83%. The champion device efficiency is 16%.