High-Conversion-Efficiency Solar Cell Using Fluorescence of Rare-Earth Ions
High-Conversion-Efficiency Solar Cell Using Fluorescence of Rare-Earth Ions
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DOI：
10.1143/jjap.35.l90
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发表时间：
1996-01
影响因子：
1.5
通讯作者：
R. Nakata;N. Hashimoto;K. Kawano
中科院分区：
文献类型：
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作者：
R. Nakata;N. Hashimoto;K. Kawano
进行了实验，以获得高转换效率的太阳能电池，通过移动的紫外区的太阳光到可见光区，其中利用的光吸收和发射特性的稀土Eu激活剂离子。CaF 2：Eu单晶的薄盘被用作太阳能电池中的AR膜的替代物。考察了稀土离子的有效性。它们的相对效率被发现是更高的Eu浓度从0.001到2摩尔%，在0.05摩尔%的最大值为1.5，比那些未掺杂的晶体时，受到低照度的Xe灯为基础的太阳能模拟器。为了使晶体作为增透膜投入实际使用，以1014-1015 ions/cm ~ 2的剂量和高达140 keV的能量将稀土离子注入到CaF_2晶体中。
An experiment was performed to obtain a high-conversion-efficiency solar cell by shifting UV-region sunlight to the visible region, in which the optical absorption and emission properties of rare-earth Eu activator ions were exploited. A thin disc of CaF2:Eu single crystal was used as an alternative to the antireflection (AR) film in a solar cell. The effectiveness of rare-earth ions was examined. Their relative efficiencies were found to be higher at Eu concentrations from 0.001 to 2 mol%, with a maximum value of 1.5 at 0.05 mol%, than those of nondoped crystal when subjected to low illuminance by a Xe-lamp-based solar simulator. For the purpose of putting the crystal to practical use as an AR film, rare-earth ions were implanted into CaF2 crystal at a dose of 1014–1015 ions/cm2 and an energy of up to 140 keV.