Comparison of NiO _x thin film deposited by spin-coating or thermal evaporation for application as a hole transport layer of perovskite solar cells.

ABSTRACT: We compared nickel oxide (NiO _x ) deposited by thermal evaporation and that deposited by the spin-coating process, for use in the hole transport layers of inverted planar perovskite solar cells (PSCs). Spin-coating deposition for NiO _x HTL has been widely used, owing to its simplicity, low cost, and high efficiency. However, the spin-coating process has a technical limit to depositing a large-area uniformly. In contrast, thermal evaporation fabrication has a low price and is able to produce uniform and reproducible thin film. Hence, the chemical states, energy band alignment, surface morphologies, and microstructures of NiO _x deposited by spin coating and thermal evaporation were analyzed. The PSC with NiO _x HTL deposi

SUBMITTER: Kim SK 

PROVIDER: S-EPMC9058328 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature