Embedded indium-tin-oxide nanoelectrodes for efficiency and lifetime enhancement of polymer-based solar cells

作者：Yu Peichen^*; Chang Chia Hua; Su Ming Shin; Hsu Min Hsiang; Wei Kung Hwa

来源：Applied Physics Letters, 2010, 96(15): 153307.

DOI：10.1063/1.3395395

• electrical conductivity
• electrochemical electrodes
• indium compounds
• nanofabrication
• nanorods
• organic semiconductors
• polymers
• solar cells
• tin compounds

In this paper, distinctive indium-tin-oxide (ITO) nanorods are employed to serve as buried electrodes for polymer-based solar cells. The embedded nanoelectrodes allow three-dimensional conducting pathways for low-mobility holes, offering a highly scaffolded cell architecture in addition to bulk heterojunctions. As a result, the power conversion efficiency of a polymer cell with ITO nanoelectrodes is increased to about 3.4% and 4.4% under one-sun and five-sun illumination conditions, respectively, representing an enhancement factor of up to similar to 10% and 36% compared to a conventional counterpart. Also, the corresponding device lifetime is prolonged twice as much to about 110 min under five-sun illumination.

• 出版日期2010-4-12