Preparation of Ga 3+ :ZnO quantum dots and the photoelectric properties of sensitized polycrystalline silicon solar cell
- PDF / 1,416,809 Bytes
- 7 Pages / 595.276 x 790.866 pts Page_size
- 47 Downloads / 143 Views
ORIGINAL PAPER
Preparation of Ga3+:ZnO quantum dots and the photoelectric properties of sensitized polycrystalline silicon solar cells Ling‑Ling Zhou1 · Gang Wu2 · Jie Liu2 · Xi‑Bin Yu2 Received: 22 February 2020 / Accepted: 23 May 2020 © Institute of Chemistry, Slovak Academy of Sciences 2020
Abstract The Ga3+:ZnO quantum dots/Si solar cells were prepared, based on the polycrystalline silicon. The photoelectric properties, including the absorption and reflection, the electrical properties, the minority carrier lifetime and the quantum efficiency, have been investigated and analyzed. The results showed that the deposed G a3+:ZnO quantum dots could increase the carrier concentration and the Hall mobility, improve the life of the minority, reduce the series resistance of the photovoltaic device effectively and reduce the energy loss of the polycrystalline silicon solar cell. Thus, the photoelectric response performance parameters of the Ga3+:ZnO/Si solar cells were upgraded degrees and its photoelectric conversion efficiency was improved. Keywords Quantum dots · Doping · Resistivity · Transmission rate · Photoelectric conversion efficiency
Introduction Energy is the foundation of life and production in human society. The reserves of traditional non-renewable fossil energy, such as coal, petroleum and natural gas, are limited. Therefore, it is imminent to search for the renewable clean energy. At present, the major clean energies include wind energy, water energy, biomass energy, geothermal energy, solar energy, etc. The solar energy has its unique advantages compared to the other clean energies. Its foremost utilization methods contain the solar photovoltaic power generation, the solar thermal power generation, the solar house, the solar * Jie Liu [email protected] * Xi‑Bin Yu [email protected] Ling‑Ling Zhou [email protected] Gang Wu [email protected] 1
Department of Food and Environmental Engineering, Chuzhou Vocational and Technical College, Chuzhou 239000, China
The Education Ministry Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Department of Chemistry, Shanghai Normal University, Shanghai 200234, China
2
water heater, the solar air-conditioning, etc. The solar photovoltaic power generation is the most direct and available in these methods. At present, the conversion efficiency of the traditional crystalline silicon solar cells is still far from its theoretical limit (Bagnall and Boreland 2008). There are four major loss mechanisms in the crystalline silicon solar cells: the light trapping losses, the carriers recombination losses, the series resistance losses and the thermal/quantum losses. However, the semiconductor quantum dots technology (Labelle et al. 2015; Ebadpour et al. 2015), the multiple exciton generation effect (Choi et al. 2015), the wide-bandgap semiconductor heterojunction technology (Gao et al. 2011; Gupta et al. 2013), the semiconductor metal ion-doped technology, the electron transport layer technology and o
Data Loading...
