中文摘要：

利用溶剂热方法制备出高质量的Sb2S3，纳米丝，并将其与聚（2-甲氧基-5-（2-乙基己氧基）-1，4-对苯乙炔）（MEH—PPV）共混制备成体型结构聚合物太阳电池．利用X射线衍射、扫描电子显微镜、透射电子显微镜和紫外一可见吸收光谱对Sb2S3。纳米丝进行表征，利用电流-电压（^y）测试和电池的光电转换效率（IPCE）谱研究了Sb2S3纳米丝含量对Sb2S3／MEH—PPV共混体型结构太阳电池性能的影响．结果表明，合成的Sb：S，纳米丝直径为60—70nm，长度为4～6μ2，沿[001]晶向生长，在紫外一可见光区有较强的吸收，光学带隙为1．57eV．电池性能测试结果表明，Sb2S3纳米丝作为辅助光吸收材料及有效的电子传输材料，提高了对可见光的利用率；Sb2S3的补充吸收作用使sb2S3／MEH—PPV共混电池具有一定的宽谱响应特点；与不含sb2s，的电池相比，Sb2S3，／MEH—PPV共混电池中增加的MEH—PPV／Sb2S，界面提高了光生激子分离效率，从而提高了电池的效率．

英文摘要：

High quality Sb2S3 nanowires, which were 60-70 nm in diameter and 4---6 in length, were synthesized via a facile solvothermal approach by using L-eysteine （C3H7 NO2S） as a capping agent, and applied to hybrid solar ceils after blending with poly（2-methoxy-5-（2-ethylhexyloxy）-i ,4-phenylenevinylene） （MEH-PPV）. The as-synthesized nanowires were characterized by XRD, SEM, TEM, UV-Vis absorption and PL spectra; the solar cells were investigated by current-voltage （J-V） measurements and incident photon-to- current conversion efficiency （IPCE） spectroscopy. The highly pure Sb2S3 nanowires have a bandgap of i. 57 eV and grow along [001 ] direction. In comparison with the solar cells without Sb2S3 nanowires, the MEH- PPV/Sb2S3deviees exhibit a much higher Jso depending on the Sb2S3 concentration and a certain wide spectral response characteristics due to complementary absorption of Sb2S3 nanowires. With addition of the Sb2S3 nanowires into the polymer phase, the MEH-PPV/Sb2S3 interfaces are created for dissociation of the excitons generated in the polymer and the direct channels are formed for electron transport; on the other hand, the de- fects on the nanowire surface cause the serious charge recombination that is unfavorable for the photocurrent generation. At the Sb2S3/MEH-PPV mass ratio of 5 ： 1, the device with a power conversion efficiency of 0. 393% is achieved under AM 1.5 illumination（100 roW/era2）.