n+-Doped-layer free amorphous silicon thin film solar cells fabricated with the CuMg alloy as back contact metal

Wang, M.C.; Chang, Ting Chang; Tsao, Shu-Wei; Chen, Y.Z.; Tseng, Shih-Ting; Hsu, Tsan-sheng; Jan, D.J.; Ai, Chi-Fong; Chen, J.R.

doi:10.1016/j.sse.2010.12.016

Cited by 4 publications

(1 citation statement)

References 17 publications

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“…Solar cells are one of many renewable energies in the world and are considered the most capable to replace transitional petrochemical energy. There are several types of solar cells based on different material systems, such as silicon [1–3], perovskite [4, 5], or III–V compounds [6, 7]. Among them, the silicon-based solar cell is commonly used for its low cost, high stability, and excellent efficiency up to 26% [8–10].…”

Section: Introductionmentioning

confidence: 99%

Reducing Interface Traps with High Density Hydrogen Treatment to Increase Passivated Emitter Rear Contact Cell Efficiency

et al. 2019

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In this work, a high-density hydrogen (HDH) treatment is proposed to reduce interface traps and enhance the efficiency of the passivated emitter rear contact (PERC) device. The hydrogen gas is compressed at pressure (~ 70 atm) and relatively low temperature (~ 200 °C) to reduce interface traps without changing any other part of the device’s original fabrication process. Fourier-transform infrared spectroscopy (FTIR) confirmed the enhancement of Si–H bonding and secondary-ion mass spectrometry (SIMS) confirmed the SiN/Si interface traps after the HDH treatment. In addition, electrical measurements of conductance-voltage are measured and extracted to verify the interface trap density (Dit). Moreover, short circuit current density (Jsc), series resistance (Rs), and fill factor (F.F.) are analyzed with a simulated light source of 1 kW M−2 global AM1.5 spectrum to confirm the increase in cell efficiency. External quantum efficiency (EQE) is also measured to confirm the enhancement in conversion efficiency between different wavelengths. Finally, a model is proposed to explain the experimental result before and after the treatment.

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