Low cost multicrystalline bifacial PERC solar cells - Fabrication and thermal improvement

被引：18

作者：

Chen, Wenhao ^{[1
]}

Liu, Renzhong ^{[2
]}

Zeng, Qingguo ^{[1
]}

Zhou, Lang ^{[1
]}

机构：

[1] Nanchang Univ, Inst Photovolta, Nanchang 330031, Jiangxi, Peoples R China

[2] Hareon Solar Technol Co Ltd, Wuxi 214407, Peoples R China

来源：

SOLAR ENERGY | 2019年 / 184卷

关键词：

Multicrystalline; Bifacial PERC; Firing-through aluminum paste; Industrialization means; Thermal optimization;

D O I：

10.1016/j.solener.2019.04.033

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

It is important to find a more cost-effective way of putting multicrystalline silicon as the mainstream silicon materials for industrial silicon solar cell fabrications. This paper presents a low-cost, bifacial multicrystalline PERC (passivated-emitter and rear cell) cells approach. Instead of the traditional PERC cells with full-area aluminum back surface field, cells rear-side is treated with aluminum grid pattern and firing-through aluminum paste. Thus, the bifacial power generation is obtained, and the laser ablation step is avoid and the consumption of aluminum paste is reduced. Rear surface passivation and metal contact are optimized via enhancing the corrosiveness of aluminum paste, matching the passivation film and improving the co-firing process. LID (light induced degradation) phenomenon of this kind of cell is controlled within a reasonable range by both light injection annealing and electric injection annealing. In addition, an anneal at 385 degrees C can further increase the cell efficiency by 0.2% absolute. The average batch efficiency of the front-side can reach 19.63%. The champion cell efficiency is 19.86% on the front and 13.65% on the rear.

引用

页码：508 / 514

页数：7

共 10 条

[1] Dry texturing of mc-Si wafers [J].

Agarwal, Garima ;

De Iuliis, Simona ;

Serenelli, Luca ;

Salza, Enrico ;

Tucci, Mario .

PHYSICA STATUS SOLIDI C: CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 8, NO 3, 2011, 8 (03) :903-906

[2] 22.8-PERCENT EFFICIENT SILICON SOLAR-CELL [J].

BLAKERS, AW ;

WANG, A ;

MILNE, AM ;

ZHAO, JH ;

GREEN, MA .

APPLIED PHYSICS LETTERS, 1989, 55 (13) :1363-1365

[3]

Cesar I., 2008, 23 EUR PHOT SOL EN C

[4] PERC plus : industrial PERC solar cells with rear Al grid enabling bifaciality and reduced Al paste consumption [J].

Dullweber, Thorsten ;

Kranz, Christopher ;

Peibst, Robby ;

Baumann, Ulrike ;

Hannebauer, Helge ;

Fuelle, Alexander ;

Steckemetz, Stefan ;

Weber, Torsten ;

Kutzer, Martin ;

Mueller, Matthias ;

Fischer, Gerd ;

Palinginis, Phedon ;

Neuhaus, Holger .

PROGRESS IN PHOTOVOLTAICS, 2016, 24 (12) :1487-1498

[5]

Herguth A., 2006, 21 EU PVSEC, P530

[6] Ultralow surface recombination of c-Si substrates passivated by plasma-assisted atomic layer deposited Al2O3 [J].

Hoex, B. ;

Heil, S. B. S. ;

Langereis, E. ;

van de Sanden, M. C. M. ;

Kessels, W. M. M. .

APPLIED PHYSICS LETTERS, 2006, 89 (04)

[7] Fabrication of silicon nanopillar arrays by cesium chloride self-assembly and wet electrochemical etching for solar cell [J].

Liu, Jing ;

Zhang, Xinshuai ;

Dong, Gangqiang ;

Liao, Yuanxun ;

Wang, Bo ;

Zhang, Tianchong ;

Yi, Futing .

APPLIED SURFACE SCIENCE, 2014, 289 :300-305

[8] Texturization of multicrystalline silicon wafers for solar cells by chemical treatment using metallic catalyst [J].

Tsujino, K ;

Matsumura, M ;

Nishimoto, Y .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2006, 90 (01) :100-110

[9] Large-area multicrystalline silicon solar cell fabrication using reactive ion etching (RIE) [J].

Yoo, Jinsu ;

Yu, Gwonjong ;

Yi, Junsin .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2011, 95 (01) :2-6

[10]

1999, PROG PHOTOVOLTAICS, V7, P471

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