Abstract Transparent composite electrodes (TCE), TiO 2 /Ag/TiO 2 (TAgT), have been demonstrated as a promising alternative of indium tin oxide (ITO) in organic solar cell application. TiO 2 /Ag/TiO 2 have been incorporated into bulk heterojunction organic solar cells (OSCs) to replace ITO as the anode. Two different hole transfer layers (HTL), poly(3,4-ethylenedioxythiophene): poly(styrene sulfonate) (PEDOT:PSS) and MoO 3 , are compared in terms of their compatibility with the TiO 2 /Ag/TiO 2 anode. The MoO 3 layer has been shown to be a beneficial HTL for TiO 2 /Ag/TiO 2 based OSC. However, the wettability of MoO 3 for polymer blend is not as good as PEDOT:PSS, and results in a relatively thin active layer in OSCs. On the other hand, ITO based OSCs using PEDOT:PSS and MoO 3 as the HTL are fabricated as control samples to compare the performance of TAgT and ITO anodes. Results of the investigation shows that the superior electrical property of TAgT anodes contributes to the effective collection of photo-carriers and its lower optical transmittance barely degrades the light absorption in OSCs. In a few words, the higher Haacke figure of merit of TAgT enables better performance of OSCs with MoO 3 HTL, in comparison with ITO based OSC.

中文翻译：

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空穴传输层和阳极对无铟TiO 2 /Ag/TiO 2 电极和基于ITO电极的P3HT:PCBM有机太阳能电池的影响

摘要 透明复合电极 (TCE) TiO 2 /Ag/TiO 2 (TAgT) 已被证明是有机太阳能电池应用中氧化铟锡 (ITO) 的有前途的替代品。TiO 2 /Ag/TiO 2 已被纳入体异质结有机太阳能电池（OSC）以代替ITO作为阳极。两种不同的空穴传输层 (HTL)，聚（3,4-亚乙基二氧噻吩）：聚（苯乙烯磺酸盐）（PEDOT：PSS）和 MoO 3 ，就它们与 TiO 2 /Ag/TiO 2 阳极的相容性进行了比较。MoO 3 层已被证明是对基于 TiO 2 /Ag/TiO 2 的 OSC 有益的 HTL。然而，MoO 3 对聚合物共混物的润湿性不如 PEDOT:PSS，并导致 OSC 中的活性层相对较薄。另一方面，使用 PEDOT 的基于 ITO 的 OSC：作为 HTL 的 PSS 和 MoO 3 被制造为对照样品，以比较 TAgT 和 ITO 阳极的性能。研究结果表明，TAgT 阳极优异的电性能有助于光载流子的有效收集，其较低的光透射率几乎不会降低 OSC 中的光吸收。简而言之，与基于 ITO 的 OSC 相比，TAgT 更高的 Haacke 品质因数使具有 MoO 3 HTL 的 OSC 具有更好的性能。