Date/Time: 04-24-2019 - Wednesday - 05:00 PM - 07:00 PM
Zhao Zhao1 Terry Alford1 Aditya Yerramilli1

1, Arizona State University, Tempe, Arizona, United States

Recently transparent-composite-electrodes (TCEs) were introduced as a substitute for indium-tin-oxide (ITO) in bulk heterojunction organic solar cells (OSCs). In this study, an anode structure consisting of TiO2/Ag/TiO2 TCE with optimized layer thicknesses was implemented as an OSC to demonstrate its potential as a replacement for ITO. In addition, the compatibility of hole-transfer-layer (HTLs) of either MoO3 or poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) were investigated in terms of their compatibility with the TCE. Corresponding control samples of ITO based OSCs were fabricated using PEDOT:PSS and MoO3 as the HTL. It is found that MoO3 HTLs benefited the OSC that utilizes a TCE as the anode. When using the MoO3 the as HTL, TCE based OSC has better performance than ITO-based OSC; and, it even rivalled the performance of conventional ITO-based OSC that utilizes PEDOT:PSS as the HTL. Outcomes of this study confirmed that even with the slightly lower transmittance in the visible portion of the light spectrum, TCEs did not degrade the light absorption in OSCs, and the efficiency of transporting photo-induced carriers in TCEs anodes was comparable or even better than ITO.

Meeting Program

Symposium Sessions

5:00 PM–7:00 PM Apr 24, 2019 (US - Arizona)

PCC North, 300 Level, Exhibit Hall C-E