采用甚高频等离子体增强化学气相沉积技术,基于优化表面形貌及光电特性的溅射后腐蚀ZnO:Al衬底,将通过调控工艺参数获得的器件质量级高速微晶硅(μc-Si:H)材料(沉积速率达10.57?/s)应用到微晶硅单结电池中,获得了初始效率达7.49%的高速...采用甚高频等离子体增强化学气相沉积技术,基于优化表面形貌及光电特性的溅射后腐蚀ZnO:Al衬底,将通过调控工艺参数获得的器件质量级高速微晶硅(μc-Si:H)材料(沉积速率达10.57?/s)应用到微晶硅单结电池中,获得了初始效率达7.49%的高速率超薄微晶硅单结太阳电池(本征层厚度为1.1μm).并提出插入n型微晶硅和p型微晶硅的隧穿复合结,实现了非晶硅顶电池和微晶硅底电池之间的低损电连接,由此获得了初始效率高达12.03%(Voc=1.48 eV,Jsc=11.67 m A/cm2,FF=69.59%)的非晶硅/微晶硅超薄双结叠层电池(总厚度为1.48μm),为实现低成本生产太阳电池奠定了基础.展开更多
采用美国宾州大学开发的AMPS(Analysis of Microelectronic and Photonic Structures)软件模拟了p/i界面缺陷态密度(Npt/i)和非晶孵化层厚度(d)对pin型氢化微晶硅(μc-Si∶H)薄膜太阳电池性能的影响。结果表明:随着Ntp/i的增大,电池的...采用美国宾州大学开发的AMPS(Analysis of Microelectronic and Photonic Structures)软件模拟了p/i界面缺陷态密度(Npt/i)和非晶孵化层厚度(d)对pin型氢化微晶硅(μc-Si∶H)薄膜太阳电池性能的影响。结果表明:随着Ntp/i的增大,电池的开路电压Voc和填充因子FF单调减小,短路电流Jsc基本不变;随着d的增大,Jsc和FF单调减小,Voc反而增大;Ntp/i和d值的增大均会导致电池光电转换效率η下降。通过对电池内部的电场及能带的分析,对上述模拟结果进行了解释。展开更多
Hydrogenated microcrystalline silicon （μc-Si：H） intrinsic films and solar cells are prepared by plasma enhanced chemical vapor deposition （PECVD） with various hydrogen dilution ratios. The influence of hydrogen ...Hydrogenated microcrystalline silicon （μc-Si：H） intrinsic films and solar cells are prepared by plasma enhanced chemical vapor deposition （PECVD） with various hydrogen dilution ratios. The influence of hydrogen dilution ratios on electrical characteristics is investigated to study the phase transition from amorphous to microcrystalline silicon. During the deposition process,the optical emission spectroscopy （OES） from plasma is recorded and compared with the Raman spectra of the films,by which the microstructure evolution of different 1-12 dilution ratios and its influence on the performance of μc-Si： H n-i-p solar cells is investigated.展开更多
Highly conductive boron-doped hydrogenated microcrystalline silicon （μc-Si： H） films and solar cells are pre- pared by plasma enhanced chemical vapour deposition （PECVD）. The effects of diborane concentration, t...Highly conductive boron-doped hydrogenated microcrystalline silicon （μc-Si： H） films and solar cells are pre- pared by plasma enhanced chemical vapour deposition （PECVD）. The effects of diborane concentration, thickness and substrate temperature on the growth and properties of B-doped layers and the performance of solar cells with high deposited rate i-layers are investigated. With the optimum p-layer deposition parameters, a higher efficiency of 5.5% is obtained with 0.78nm/s deposited i-layers. In addition, the carriers transport mechanism of p-type μc-Si： H films is discussed.展开更多
文摘采用甚高频等离子体增强化学气相沉积技术,基于优化表面形貌及光电特性的溅射后腐蚀ZnO:Al衬底,将通过调控工艺参数获得的器件质量级高速微晶硅(μc-Si:H)材料(沉积速率达10.57?/s)应用到微晶硅单结电池中,获得了初始效率达7.49%的高速率超薄微晶硅单结太阳电池(本征层厚度为1.1μm).并提出插入n型微晶硅和p型微晶硅的隧穿复合结,实现了非晶硅顶电池和微晶硅底电池之间的低损电连接,由此获得了初始效率高达12.03%(Voc=1.48 eV,Jsc=11.67 m A/cm2,FF=69.59%)的非晶硅/微晶硅超薄双结叠层电池(总厚度为1.48μm),为实现低成本生产太阳电池奠定了基础.
文摘采用美国宾州大学开发的AMPS(Analysis of Microelectronic and Photonic Structures)软件模拟了p/i界面缺陷态密度(Npt/i)和非晶孵化层厚度(d)对pin型氢化微晶硅(μc-Si∶H)薄膜太阳电池性能的影响。结果表明:随着Ntp/i的增大,电池的开路电压Voc和填充因子FF单调减小,短路电流Jsc基本不变;随着d的增大,Jsc和FF单调减小,Voc反而增大;Ntp/i和d值的增大均会导致电池光电转换效率η下降。通过对电池内部的电场及能带的分析,对上述模拟结果进行了解释。
基金the State Key Development Program for Basic Research of China(Nos.2006CB202602,2006CB202603)Tianjin Assistant Foundation for the National Basic Research Program of China(No.07QTPTJC29500)~~
文摘Hydrogenated microcrystalline silicon （μc-Si：H） intrinsic films and solar cells are prepared by plasma enhanced chemical vapor deposition （PECVD） with various hydrogen dilution ratios. The influence of hydrogen dilution ratios on electrical characteristics is investigated to study the phase transition from amorphous to microcrystalline silicon. During the deposition process,the optical emission spectroscopy （OES） from plasma is recorded and compared with the Raman spectra of the films,by which the microstructure evolution of different 1-12 dilution ratios and its influence on the performance of μc-Si： H n-i-p solar cells is investigated.
基金the State Key Development Program for Basic Research of China(No.2006CB202601)the Basic Research Project of Henan Province(No.072300410140)~~
文摘Highly conductive boron-doped hydrogenated microcrystalline silicon （μc-Si： H） films and solar cells are pre- pared by plasma enhanced chemical vapour deposition （PECVD）. The effects of diborane concentration, thickness and substrate temperature on the growth and properties of B-doped layers and the performance of solar cells with high deposited rate i-layers are investigated. With the optimum p-layer deposition parameters, a higher efficiency of 5.5% is obtained with 0.78nm/s deposited i-layers. In addition, the carriers transport mechanism of p-type μc-Si： H films is discussed.
