Tellurium‐based screen‐printable conductor metallization pastes containing multiple inorganic solid‐state frits (ie, metallization pastes containing two or more individual discrete tellurium‐based frits) were evaluated on p‐type, mono‐crystalline silicon passivated emitter rear cell (PERC) wafers. Individual discrete frits with tellurium‐lead‐metal‐oxygen compositions of were prepared with varying ratios of tellurium and lead cations. Screen‐printed solar cells fabricated from metallization pastes containing multiple discrete frits (two, three, and four discrete frits) had state‐of‐the‐art solar cell electrical properties (Eff = 21.1%). Mechanisms for the oxidation, dissolution, and removal of the SiN_x:H antireflective coating (ARC) by tellurium‐based metallizations during solar cell firing are examined. In situ thermal analysis of a model frit‐silicon nitride system shows that frit glass transition temperatures coincide with the onset of silicon nitride oxidation during heating in accord with dissolution reactions. The advantage of multiple frit systems is an inherent ability to fine‐tune the final chemistry of the conductor metallization, beyond what is possible with single frit systems, to further improve solar cell performance, which is essential for advanced crystalline silicon solar cell devices and continued reductions in processing costs.

中文翻译：

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用于晶体硅太阳能电池的碲基丝网印刷导体金属

在p型单晶硅钝化发射极后电池（PERC）上评估了包含多个无机固态玻璃料的碲基丝网印刷导体金属化浆料（即，包含两个或多个单独的离散碲基玻璃料的金属化浆料）。威化饼。制备具有不同含量的碲和铅阳离子比例的，具有碲-铅-金属-氧组成的单个离散玻璃料。由包含多个离散熔块（两个，三个和四个离散熔块）的金属化浆料制成的丝网印刷太阳能电池具有最先进的太阳能电池电性能（Eff = 21.1％）。SiN _x的氧化，溶解和去除机理在太阳能电池烧成过程中，对基于碲的金属化的：H抗反射涂层（ARC）进行了检查。对玻璃料-氮化硅模型的原位热分析表明，根据溶解反应，玻璃料的玻璃化转变温度与加热过程中氮化硅氧化的开始相吻合。多个玻璃料系统的优势在于，它具有微调导体金属化最终化学性质的固有能力，这超出了单玻璃料系统所能实现的，进一步改善了太阳能电池的性能，这对于先进的晶体硅太阳能电池设备至关重要，并且持续不断地发展。降低加工成本。