Simulation of Silicon Heterojunction Solar Cells for High Efficiency with Lithium Fluoride Electron Carrier Selective Layer
Abstract
:1. Introduction
2. Simulation Model
3. Results and Discussion
3.1. Effect of Incorporating a LiFx Electron Selective Layer
3.2. Surface Effect Passivation
3.3. Effect of Work Function in a LiFx Electron Selective Layer
4. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Parameters | a-Si:H (i) | c-Si (n) | LiFx | uc-SiOx (n) |
---|---|---|---|---|
Layer thickness (nm) | 3 | 150,000 | 2 | 3 |
Dielectric constant | 11.9 | 11.9 | 11.9 | 11.9 |
Electron affinity (eV) | 3.9 | 4.05 | 3.2–3.9 | 3.9 |
Band gap (eV) | 1.5 | 1.12 | 11 | 1.9 |
Optical band gap (eV) | 1.5 | 1.12 | 11 | 1.9 |
Effective conduction band density (cm−3) | 1 × 1020 | 2.84 × 1019 | 1 × 1020 | 1 × 1019 |
Effective valence band density (cm−3) | 1 × 1020 | 2.68 × 1019 | 1 × 1020 | 1 × 1019 |
Electron mobility (cm2 V−1 s−1) | 5 | 1111 | 1 | 50 |
Hole mobility (cm2 V−1 s−1) | 1 | 421.6 | 1 | 5 |
Doping concentration of acceptors (cm−3) | 0 | 0 | 0 | 0 |
Doping concentration of donators (cm−3) | 0 | 5 × 1016 | 1 × 107 | 1 × 1020 |
Thermal velocity of electrons (cms−1) | 1 × 107 | 1 × 107 | 1 × 107 | 1 × 107 |
Thermal velocity of holes (cms−1) | 1 × 107 | 1 × 107 | 1 × 107 | 1 × 107 |
Layer density (gcm−3) | 2.328 | 2.328 | 2.328 | 2.328 |
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Khokhar, M.Q.; Hussain, S.Q.; Pham, D.P.; Lee, S.; Park, H.; Kim, Y.; Cho, E.-C.; Yi, J. Simulation of Silicon Heterojunction Solar Cells for High Efficiency with Lithium Fluoride Electron Carrier Selective Layer. Energies 2020, 13, 1635. https://doi.org/10.3390/en13071635
Khokhar MQ, Hussain SQ, Pham DP, Lee S, Park H, Kim Y, Cho E-C, Yi J. Simulation of Silicon Heterojunction Solar Cells for High Efficiency with Lithium Fluoride Electron Carrier Selective Layer. Energies. 2020; 13(7):1635. https://doi.org/10.3390/en13071635
Chicago/Turabian StyleKhokhar, Muhammad Quddamah, Shahzada Qamar Hussain, Duy Phong Pham, Sunhwa Lee, Hyeongsik Park, Youngkuk Kim, Eun-Chel Cho, and Junsin Yi. 2020. "Simulation of Silicon Heterojunction Solar Cells for High Efficiency with Lithium Fluoride Electron Carrier Selective Layer" Energies 13, no. 7: 1635. https://doi.org/10.3390/en13071635