Effects of oxygen related thermal donors on the performance of silicon heterojunction solar cells
Effects of oxygen related thermal donors on the performance of silicon heterojunction solar cells
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氧相关热供体对硅异质结太阳能电池性能的影响
DOI：
10.1016/j.solmat.2018.02.006
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发表时间：
2018
影响因子：
6.9
通讯作者：
Yang Deren
中科院分区：
文献类型：
--
作者：
Li Jiyang;Yu Xuegong;Yuan Shuai;Yang Lifei;Liu Zhengxin;Yang Deren
实验研究了氧相关热施主（TD）对硅异质结（SHJ）太阳电池性能的影响。研究发现，一定数量的热施主会对SHJ太阳电池的性能产生很大的影响。在浓度接近1015 cm −3的热施主的情况下，SHJ太阳能电池的效率通常会降低约1%的绝对值。微波光电导衰减和霍尔效应的研究表明，TD能显著降低n型硅衬底的载流子寿命，但对载流子迁移率没有影响。深能级瞬态谱（DLTS）的测量进一步证明，TD导致能级atEc-0.13 eV，载流子俘获截面为10− 15 cm 2，这是导致载流子寿命和太阳能电池效率降低的原因。
The influence of oxygen-related thermal donors (TDs) on the performance of silicon heterojunction (SHJ) solar cells was explored experimentally in this paper. It is found that a certain number of thermal donors could do much harm to the performance of SHJ solar cells. The efficiency of SHJ solar cells is usually reduced by a value of ~ 1% absolute in the case of thermal donors with a concentration of nearly 1015cm−3. The microwave photoconductance decay and Hall Effect studies have proved that the TDs can significantly reduce the carrier lifetime of n-type silicon substrate, but have no influence on the carrier mobility. Deep level transient spectroscopy (DLTS) measurements have further demonstrated that the TDs cause an energy level atEc-0.13 eV with carrier capture cross-section of 10−15cm2, which is responsible for the reduction of carrier lifetime and solar cell efficiency.