Nanoscale Insight into Performance Loss Mechanisms in P3HT:ZnO Nanorod Solar Cells
| Autor: | Jong Hyun Shim, Jeffrey M. Mativetsky, Haian Qiu, Junghyun Cho |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
business.industry Photovoltaic system Energy conversion efficiency Energy Engineering and Power Technology 02 engineering and technology Hybrid solar cell Conductive atomic force microscopy 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences law.invention Active layer law Solar cell Materials Chemistry Electrochemistry Chemical Engineering (miscellaneous) Optoelectronics Nanorod Electrical and Electronic Engineering 0210 nano-technology business Current density |
| Zdroj: | ACS Applied Energy Materials. 1:6172-6180 |
| ISSN: | 2574-0962 |
| DOI: | 10.1021/acsaem.8b01222 |
| Popis: | Hybrid solar cells based on semiconducting polymers and metal oxides offer the possibility of combining the best attributes of both constituents to achieve efficient and low-cost solar energy harvesting. Active layers consisting of ZnO nanorods and semiconducting polymer poly(3-hexylthiophene), P3HT, have been studied extensively over the past decade. This type of solar cell, however, still exhibits a relatively low performance and poor device-to-device reproducibility. For insight into the performance bottlenecks in P3HT:ZnO nanorod solar cells, we employ a point-by-point current–voltage mapping method using conductive atomic force microscopy to probe the local photovoltaic properties of hybrid P3HT:ZnO nanorod active layers with nanoscale spatial resolution. We observe that the short-circuit current density, open-circuit voltage, fill factor, and power conversion efficiency are highly heterogeneous and sensitive to the local thickness of the P3HT hole transport layer that sits atop the active layer, wit... |
| Databáze: | OpenAIRE |
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