Evaporated and solution deposited planar Sb2S3 solar cells: A comparison and its significance.

Autor: Osorio Mayon, Yahuitl, White, Thomas P., Wang, Rongping, Yang, Zhiyong, Catchpole, Kylie R.
Předmět:
Zdroj: Physica Status Solidi. A: Applications & Materials Science; Jan2016, Vol. 213 Issue 1, p108-113, 6p
Abstrakt: Sb2S3 is an alternative emerging material for chalcogenide solar cells. In this paper, we compare planar solar cells in which the Sb2S3 absorber was deposited by either thermal evaporation or a solution based process. The planar inorganic solar cell with evaporated Sb2S3 has an efficiency of 1.7%. This is much higher than the efficiency of 0.8% for solution deposited Sb2S3, and the highest known reported efficiency for a planar Sb2S3 solar cell with a CuSCN hole conducting layer. The evaporated Sb2S3 film is sulfur-rich, which results in flattening of the film surface after annealing at 300 °C, thereby reducing the likelihood of contact between the Sb2S3 and gold contact. In addition, the crystal size of the evaporated Sb2S3 film is about 30% larger than that of the solution deposited Sb2S3 and has different preferential crystal planes. These features make evaporation a promising deposition method for flat solar cells made from sulfur-based semiconducting materials. Cross section image of the evaporated Sb2S3 solar cell with labels for each layer. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index