EFFICIENCY IMPROVEMENT OF POLYCRYSTALLINE SILICON SOLAR CELLS

多晶硅太阳能电池效率的提高

• 批准号: 59850006
• 负责人: TAKEUCHI Toshio
• 金额: $ 1.22万
• 依托单位: Sendai National College of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research
• 财政年份: 1984
• 资助国家: 日本
• 起止时间: 1984 至 1985
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-59850006/
• 关键词: Polycrystalline silicon; Solar cells; Grain boundariespassivation; 不動態化

Preparation of silcon films for solar cells; Preparation conditions of silicon thin films by the method of melt quenching were experimentally clarified especially on the relation of film dimentions and preparation parameters. These parameters were ejection pressure, atmospheric pressure, disc rotation speed, preparation speed, disc materials and atmospheric gases. Hydrodynamic analysis well interpreted these experimental results quntitatively.Electronic density of states at grain boundaries; The electronic conductivities and temperature dependence of Hall mobilities were measured on the undoped and intentionally boron and phosphorus doped samples. Double schottky barrier model which made double depletion layers at grain boundaties and works as sink for the photogenerated carries and reduce the collection efficiency. Field dependent conductivites under DC bias voltage were well interpreted qualitatively as the carrier transport through the thermionic emission across over the grain boundaries potential barriers.Grain boundaries electric field observation technique; A new method to analize electrically active grain boundaries of polycrystalline silicon by using a field effect of nematic liquid crystal with positive dielectric anisotropy is developed.Plasma passivation of grain boundaries were experimentally recognized.

制备太阳能电池的硅胶膜；通过实验阐明了硅薄膜的制备条件，尤其是在膜布置和制备参数的关系上阐明。这些参数是弹出压力，大气压，圆盘旋转速度，制备速度，圆盘材料和大气气体。流体动力分析很好地解释了这些实验结果。霍尔迁移率的电子电导率和温度依赖性是在未居状和有意的硼和磷掺杂样品上测量的。 Double Schottky屏障模型，在晶缘边界上产生了双重耗尽层，并用作光生携带的下沉并降低收集效率。直流偏置电压下的场依赖性电量被定性地解释为携带者通过晶粒边界上的热量发射的载体传输潜在的屏障。开发了列晶液晶体的野外作用，一种具有阳性介电性各向异性的野外作用，一种新的方法来分析多晶硅的电活动晶界。在实验上识别了晶界的播出。

项目成果

Abstract of The 10th Int.Liquid Crystal Conf. G-36. (1984)

第十届国际液晶大会摘要

Mol.Cryst.Lig.Cryst.127. (1985)

Mol.Cryst.Lig.Cryst.127。

Mol. Cryst. Liq. Cryst.127. (1985)

摩尔。

Abstract of The 2nd Asia Pasific Phisics Conf.(1986)

第二届亚太物理学会摘要(1986)

Abstract of The Second Asia Pasific Physics Conf.(1986)

第二届亚太物理会议摘要(1986)