Polymer/Inorganic Hole Transport Layer for Low-Temperature-Processed Perovskite Solar Cells
| Autor: | Narges Yaghoobi Nia, Aldo Di Carlo, Behzad Rezaei, Neda Irannejad, Enrico Lamanna, Siavash Adhami |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
bilayer
Control and Optimization Materials science Energy Engineering and Power Technology Halide 02 engineering and technology 010402 general chemistry 01 natural sciences lcsh:Technology Stack (abstract data type) CuSCN Electrical and Electronic Engineering Engineering (miscellaneous) Perovskite (structure) Photocurrent chemistry.chemical_classification Renewable Energy Sustainability and the Environment lcsh:T Bilayer Polymer poly(3-hexylthiophene) stability 021001 nanoscience & nanotechnology 0104 chemical sciences Hysteresis chemistry Chemical engineering interface 0210 nano-technology Layer (electronics) Energy (miscellaneous) |
| Zdroj: | Energies, Vol 13, Iss 2059, p 2059 (2020) Energies Volume 13 Issue 8 |
| ISSN: | 1996-1073 |
| Popis: | In the search for improvements in perovskite solar cells (PSCs), several different aspects are currently being addressed, including an increase in the stability and a reduction in the hysteresis. Both are mainly achieved by improving the cell structure, employing new materials or novel cell arrangements. We introduce a hysteresis-free low-temperature planar PSC, composed of a poly(3-hexylthiophene) (P3HT)/CuSCN bilayer as a hole transport layer (HTL) and a mixed cation perovskite absorber. Proper adjustment of the precursor concentration and thickness of the HTL led to a homogeneous and dense HTL on the perovskite layer. This strategy not only eliminated the hysteresis of the photocurrent, but also permitted power conversion efficiencies exceeding 15.3%. The P3HT/CuSCN bilayer strategy markedly improved the life span and stability of the non-encapsulated PSCs under atmospheric conditions and accelerated thermal stress. The device retained more than 80% of its initial efficiency after 100 h (60% after 500 h) of continuous thermal stress under ambient conditions. The performance and durability of the PSCs employing a polymer/inorganic bilayer as the HTL are improved mainly due to restraining perovskite ions, metals, and halides migration, emphasizing the pivotal role that can be played by the interface in the perovskite-additive hole transport materials (HTM) stack. |
| Databáze: | OpenAIRE |
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