InP thin films with single-crystalline-like properties on flexible metal substrates for photovoltaic application
| Autor: | Monika Rathi, Magali T. Desessarts, Phil Ahrenkiel, Yao Yao, Pavel Dutta, Venkat Selvamanickam, Nan Zheng, Ying Gao, Ali Khadimallah, Devendra Khatiwada |
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| Rok vydání: | 2016 |
| Předmět: |
010302 applied physics
Electron mobility Materials science Band gap business.industry 02 engineering and technology Chemical vapor deposition 021001 nanoscience & nanotechnology Epitaxy 01 natural sciences 0103 physical sciences Optoelectronics Texture (crystalline) Metalorganic vapour phase epitaxy Thin film 0210 nano-technology Ion beam-assisted deposition business |
| Zdroj: | 2016 IEEE 43rd Photovoltaic Specialists Conference (PVSC). |
| DOI: | 10.1109/pvsc.2016.7749950 |
| Popis: | We demonstrate heteroepitaxial growth of single-crystalline-like InP thin films by metal organic chemical vapor deposition (MOCVD) on low-cost flexible metal foils. The epitaxy was enabled by a multilayer oxide buffer made using ion beam assisted deposition (IBAD). The InP films were biaxially textured with sharp in-plane texture and exhibited strong (002) preferential out-of-plane orientation. Strong room-temperature photoluminescence was also observed with band gap of ∼ 1.27 eV. Electron mobility of > 700 cm2/V-s at a carrier concentration of 5 × 1017 cm−3 was obtained. High quality single crystalline-like InP films on low-cost metal substrates may potentially be used in the fabrication of inexpensive flexible InP solar cells. |
| Databáze: | OpenAIRE |
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