石墨烯氧化物做為有機太陽能電池電洞傳輸層
Other Title
Solution processable graphene oxide as efficient hole transport layer in polymer solar cells
Journal
光學工程
Journal Issue
130
Start Page
40
End Page
45
Date Issued
2015-07
Author(s)
李紹先
Abstract
在本研究中我們使用二維結構的石墨烯氧化物做為高分子太陽能電池的電洞傳輸層，同時也抑制電子往正極的傳導，有效減少了電子與電洞再結合，其元件表現與傳統使用高分子半導體PEDOT:PSS做為電洞傳輸層的太陽能電池表現相當。我們的結果証明了可使用溶液法製備的二維材料石墨烯氧化物可被廣泛地應用在未來高分子光電元件的電洞傳輸層。
The utilization of graphene oxide (GO) thin films as the hole transport and electron blocking layer in organic photovoltaics (OPVs) is demonstrated. The incorporation of GO deposited from neutral solutions between the photoactive poly(3-hexylthiophene) (P3HT):phenyl-C61-butyric acid methyl ester (PCBM) layer and the transparent and conducting indium tin oxide (ITO) leads to a decrease in recombination of electrons and holes and leakage currents. This results in a dramatic increase in the OPV efficiencies to values that are comparable to devices fabricated with PEDOT:PSS as the hole transport layer. Our results indicate that GO could be a simple solution-processable alternative to PEDOT:PSS as the effective hole transport and electron blocking layer in OPV and light-emitting diode devices.
Subjects
石墨烯氧化物
有機太陽能電池
電洞傳輸層
有機電子元件
graphene oxide
organic photovoltaics
hole transport layers
organic electronics
Type
journal article