Growth of low-cost and high-quality monocrystalline silicon ingots by using split recycled seeds

Lei, Qi; He, L.; Tang, Changxin; Liu, Shilong; He, Xingen; Li, Xiaoping; Xu, Yunfei; Mao, Wei; Li, Jianmin; Zhou, Lang

doi:10.1016/j.mssp.2021.106318

Cited by 5 publications

(3 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although the recycled seed could generate extra initial defects, however, it becomes influential for solar cell performance only when defect concentration reaches a certain level, that is, the influence of dislocation clusters induced by initial defects is neglectable when the wafer height is below 55% and becomes severe at higher positions. [ 107 ] Lei et al [ 108 ] used split recycled seeds to grow CM‐Si. They found that the defect density in the recycled seeds increased significantly but decreased greatly during the seeding and growth.…”

Section: Cost Factorsmentioning

confidence: 99%

See 1 more Smart Citation

Growth and Defects in Cast‐Mono Silicon for Solar Cells: A Review

Huang

Yuan

et al. 2022

Physica Status Solidi (a)

View full text Add to dashboard Cite

Cast‐mono silicon (CM‐Si) is a promising substrate to fabricate cost‐effective photovoltaic (PV) wafers used for solar cells with higher efficiency compared with conventional cast multicrystalline silicon (mc‐Si) due to its high throughput and good ingot quality. However, the unavoidable appearance of defects like dislocation, subgrain boundaries, impurities, multicrystallization, and twins, seriously limits its mass‐scale applications in the PV industry. In this review, the growth characteristics of the CM‐Si method are introduced first. Then, the attention is focused on the defects in CM‐Si. Other issues related to production costs that restrict the development of CM‐Si are also addressed in detail, such as seed cost and recycled seeds, n‐type CM‐Si, and large‐size CM‐Si. Finally, a conclusion is made and the prospects are given about the CM‐Si technique.

show abstract

Section: Cost Factorsmentioning

confidence: 99%

“…Furthermore, the average cell efficiency of the solar cells fabricated by the wafers grown with recycled seeds was only 0.1% different from that of the wafers grown with new seeds. [ 108 ] Therefore, this low‐cost seed recycling method is of great significance for reducing the cost of CM‐Si.…”

Section: Cost Factorsmentioning

confidence: 99%

Growth and Defects in Cast‐Mono Silicon for Solar Cells: A Review

Huang

Yuan

et al. 2022

Physica Status Solidi (a)

View full text Add to dashboard Cite

show abstract

“…Cast monocrystalline silicon (mono-Si) combines the advantages of low production cost of cast multicrystalline silicon (multi-Si) and high performance of Czochralski mono-Si, which make it a promising solar cell material. [1,2] However, there are still bottlenecks in the fabrication of cast mono-Si, such as the height of low-minority-carrier lifetime areas at the bottom of the cast mono-Si ingot, [2][3][4] which need to be solved by the academic and industrial communities.…”

Section: Introductionmentioning

confidence: 99%

Effects of Impurity Barrier Layer on the Red Zone at the Bottom of Cast Monocrystalline Si Ingot for Solar Cells

Chen,

Hu,

Zhang

et al. 2023

Solar RRL

View full text Add to dashboard Cite

A technique to prepare low‐cost high‐purity quartz sheets as impurity barrier layers between the crucible and the seed crystal is proposed herein to improve the casting process of monocrystalline Si (mono‐Si) ingots. The results show that the diffusion of metal impurities from the crucible toward a cast mono‐Si ingot can be hindered, increasing the minority carrier lifetime of Si crystals and reducing the height of the red zone at the bottom of the ingot. Solar cell devices assembled from cast mono‐Si ingots exhibit the enhancement in their overall photoelectric conversion efficiency (η) by 0.76% in comparison to those based on conventional mono‐Si ingots. Therefore, high‐purity quartz sheets as impurity barrier layers for the casting of mono‐Si ingots have great application potential in the photovoltaic industry.

show abstract

Improving quality of cast monocrystalline Si ingot with seed crystal strips and graphite soft felt

Chen,

Zhang,

et al. 2023

Solar Energy Materials and Solar Cells

View full text Add to dashboard Cite

Growth of low-cost and high-quality monocrystalline silicon ingots by using split recycled seeds

Cited by 5 publications

References 33 publications

Growth and Defects in Cast‐Mono Silicon for Solar Cells: A Review

Growth and Defects in Cast‐Mono Silicon for Solar Cells: A Review

Effects of Impurity Barrier Layer on the Red Zone at the Bottom of Cast Monocrystalline Si Ingot for Solar Cells

Improving quality of cast monocrystalline Si ingot with seed crystal strips and graphite soft felt

Contact Info

Product

Resources

About