Performance improvement of conjugated polymer and ZnO hybrid solar cells using nickel oxide as anode buffer layer
Performance improvement of conjugated polymer and ZnO hybrid solar cells using nickel oxide as anode buffer layer
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DOI：
10.1002/pssa.201127227
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发表时间：
2011-12
期刊：
影响因子：
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通讯作者：
H. Tan;X. W. Zhang;F. Tan;H. L. Gao;Z. Yin;Y. M. Bai;X. Zhang;S. Qu
中科院分区：
文献类型：
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作者：
H. Tan;X. W. Zhang;F. Tan;H. L. Gao;Z. Yin;Y. M. Bai;X. Zhang;S. Qu
通过用NiOx代替聚（3，4-亚乙基二氧噻吩）-聚（苯乙烯磺酸盐）（PEDOT：PSS）作为阳极缓冲层，基于ZnO纳米颗粒（nc-ZnO）和共轭聚合物MDMO-PPV的混合太阳能电池的开路电压显著增加。在光活性共混物中的高量ZnO（80重量%）下获得高达0.828 V的开路电压。这种改进可以归因于NiOx的适当能级，其允许空穴的较少能量损失，同时具有足够高的导带最小值以用作比PEDOT：PSS更有效的电子/激子阻挡层。开路电压和光电流的增加导致功率转换效率提高了42%。结果表明，氧化镍具有提高基于nc-ZnO的混合太阳能电池性能的潜力。
The open‐circuit voltage of hybrid solar cells based on ZnO nanoparticles (nc‐ZnO) and conjugated polymer MDMO‐PPV increased significantly by replacing poly(3,4‐ethylenedioxythiophene)‐poly(styrenesulphonate) (PEDOT:PSS) with NiOx as the anode buffer layers. The open‐circuit voltage as high as 0.828 V was obtained at high amount of ZnO (80% in weight) in the photoactive blend. Such improvement could be ascribed to the appropriate energy level of NiOx, which allows less energy loss for holes while having a sufficiently high‐conduction band minimum to function as a more efficient electron/exciton blocking layer than PEDOT:PSS. The increase of open‐circuit voltage, as well as photocurrent, resulted in a 42% improvement in power conversion efficiency. The results indicate that nickel oxide has promising potential to increase the performance of hybrid solar cells based on nc‐ZnO.