Статья

Hierarchical Transparent Back Contacts for Bifacial CdTe PV

B. Edward SartorNational Renewable Energy Lab, Golden, Colorado 80401, United StatesTeng ZhangA.J. Drexel Nanomaterials Institute, Drexel University, Philadelphia, Pennsylvania 19104, United StatesChristopher P. MuzzilloNational Renewable Energy Lab, Golden, Colorado 80401, United StatesChungho LeeFirst Solar, Santa Clara, California 95050, United StatesRyan MuzzioNational Renewable Energy Lab, Golden, Colorado 80401, United StatesYury GogotsiA.J. Drexel Nanomaterials Institute, Drexel University, Philadelphia, Pennsylvania 19104, United StatesMatthew O. ReeseNational Renewable Energy Lab, Golden, Colorado 80401, United StatesAndré D. TaylorNew York University, Brooklyn, New York 11201, United States

2024en

ABI

Аннотация

A hierarchical transparent back contact leveraging an AlGaOx passivating layer, Ti3C2Tx MXene with a high work function, and a transparent cracked film lithography (CFL) templated nanogrid is demonstrated on copper-free cadmium telluride (CdTe) devices. AlGaOx improves device open-circuit voltage but reduces the fill factor when using a CFL-templated metal contact. Including a Ti3C2Tx interlayer improves the fill factor, lowers detrimental Schottky barriers, and enables metallization with CFL by providing transverse conduction into the nanogrid. The bifacial performance of an AlGaOx/Ti3C2Tx/CFL gold contact is evaluated, reaching 19.5% frontside efficiency and 2.8% backside efficiency under 1-sun illumination for a copper-free, group-V doped CdTe device. Under dual illumination, device power generation reached 200 W/m2 with 0.1 sun backside illumination.

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Идентификаторы

DOI: 10.1021/acsenergylett.4c00156

Цитирования и источники

Цитирований: 2Использованных источников: 0

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