中文摘要：

采用溶剂热方法对ZnO纳米颗粒进行对溴苯甲酸（BBA）表面化学改性,获得了BBA表面包覆率（CBBA）不同的ZnO纳米颗粒,并分别用傅里叶变换红外光谱（FT-IR）、X射线晶体衍射（XRD）、扫描电子显微镜（SEM）和紫外-可见吸收光谱（UV-Vis）对改性前后的纳米颗粒产物进行了表征.结果表明：BBA改性可以在很大程度上减轻纳米颗粒的团聚并改善它们在有机溶剂（如氯苯、无水乙醇）中的分散性能;同时,改性化学反应并不会改变原来晶体的生长特性.分别将改性前后的ZnO纳米颗粒用作有机/无机杂化太阳电池中的电子受体材料,发现改性对电池性能具有显著的改善作用,并揭示了电池效率（η）对包覆率（CBBA）的依赖关系.

英文摘要：

ZnO nanopartieles （ZnO NPs） were chemically modified with para-bromobenzoic acid （BBA） by a solvothermal method with different surface coverage of BBA （C~BA）, and characterized by FT-IR, XRD, SEM, and UV- Vis. The BBA modification greatly reduces the nanoparticle aggregation and improves their dispersibility in organic solvents （such as chlorobenzene, absolute alcohol）, but does not alter the original growth features of the preformed ZnO NPs. Hybrid solar cells based on the BBA-modified ZnO NPs exhibit a significantly improved performance in comparison to the devices of unmodified ZnO NPs, and CBBn-dependent photovoltaic properties of the BBA-modified ZnO NPs are also revealed.