Metallization process optimization of HIT solar cell for high current density and silver reduction

IF 5.4 3区化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR Inorganic Chemistry Communications Pub Date : 2024-12-01 Epub Date: 2024-11-05 DOI:10.1016/j.inoche.2024.113480

Alamgeer , Maha Nur Aida , Muhammad Quddamah Khokhar , Hasnain Yousuf , Adnan Tariq , Muhammad Aleem Zahid , Sangheon Park , Junsin Yi

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Abstract

The Silicon heterojunction (SHJ) solar cell belongs to the most viable cell structure that enables low cost as well as high efficiency. For SHJ cells, silver (Ag) paste has been used through screen-printed process that is hardenable at low temperature. The procedure of screen printing is essential for improving the electrical properties because it allows electrodes to make good contact with the top layer of solar cells. This paper describes the experimental procedure to optimize the process condition for achieving comparatively high efficiency with minimum usage of Ag consumption. It was noticed that adequate contact among electrodes and uppermost transparent conductive oxide layer in SHJ solar cell depending considerably on squeeze speed, squeegee pressure, scraper speed, curing time and temperature. By controlling the snap-off distance of 1.4 mm, squeegee pressure at 0.3 MPa, scraper speed of 10 mm/sec, squeegee speed of 170 mm/sec, curing time of 20 min and curing temperature of 190 °C respectively, we achieved comparatively high efficiency of 22.46 %.

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优化 HIT 太阳能电池的金属化工艺，以实现高电流密度和减少银含量

硅异质结（SHJ）太阳能电池属于最可行的电池结构，不仅成本低，而且效率高。在 SHJ 电池中，使用了可在低温下硬化的丝网印刷银（Ag）浆料。丝网印刷工艺对改善电性能至关重要，因为它能使电极与太阳能电池的顶层良好接触。本文介绍了优化工艺条件的实验过程，以实现相对较高的效率和最低的银消耗量。研究发现，SHJ 太阳能电池中电极与最上层透明导电氧化层之间的充分接触在很大程度上取决于挤压速度、刮刀压力、刮板速度、固化时间和温度。通过分别控制卡距为 1.4 毫米、刮刀压力为 0.3 兆帕、刮刀速度为 10 毫米/秒、刮刀速度为 170 毫米/秒、固化时间为 20 分钟和固化温度为 190 ℃，我们获得了 22.46 % 的相对较高的效率。

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来源期刊

Inorganic Chemistry Communications 化学-无机化学与核化学

CiteScore

5.50

自引率

7.90%

发文量

1013

审稿时长

53 days

期刊介绍： Launched in January 1998, Inorganic Chemistry Communications is an international journal dedicated to the rapid publication of short communications in the major areas of inorganic, organometallic and supramolecular chemistry. Topics include synthetic and reaction chemistry, kinetics and mechanisms of reactions, bioinorganic chemistry, photochemistry and the use of metal and organometallic compounds in stoichiometric and catalytic synthesis or organic compounds.