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A Study of Increased Resistivity of FTO Back Contact for CZTS Based Absorber Material Grown by Electrodeposition-Annealing Route

机译：电沉积—退火工艺生长的CZTS基吸波材料的FTO背接触电阻增加的研究

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摘要

CZTS (Copper zinc tin sulfide) thin films have been synthesized on transparent conducting oxide (TCO) back contacts on a glass substrate, allowing sun light to pass through the entire solar cell. Aqueous solution based co-electrodeposition followed by elevated temperature sulfurization, was used to grow CZTS on transparent fluorinated tin oxide. Loss in conductivity of FTO is observed after sulfurization, causing reduced device efficiency. Increased resistivity of the FTO is likely due to outdiffusion process. A systematic study of resistivity of back contact at various sulfurization temperatures and times is discussed. Various remedial measures for improved conductivity of back contact were proposed and conducted.
机译：已经在玻璃基板上的透明导电氧化物（TCO）背面触点上合成了CZTS（铜锌锡硫化物）薄膜，从而使阳光可以穿过整个太阳能电池。基于水溶液的共电沉积，然后进行高温硫化，用于在透明的氟化氧化锡上生长CZTS。硫化后观察到FTO的电导率下降，从而导致器件效率降低。 FTO的电阻率增加可能是由于扩散过程所致。讨论了在不同硫化温度和时间下背接触电阻率的系统研究。提出并进行了各种补救措施以改善背接触的导电性。

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