在MoOX间层中,UV工程氧气空隙使晶体太阳能电池的效率达到24.15%
Linfeng Yang1, Wanyu Lu1, Jingjie Li2
1Key Laboratory Optoelectronics Technology, Ministry of Education, School of Information Science and Technology, Beijing University of Technology, Beijing 100124, China.
Materials (Basel, Switzerland)
|November 27, 2025
概括
紫外线照射通过增加氧气空缺,提高导电性和改善太阳能电池中的孔运输层来增强氧化 (MoOX) 膜. 这种修改显著提高了太阳能电池的效率和填充因子.
科学领域:
- 材料科学 材料科学 材料科学
- 可再生能源可再生能源是可再生能源.
背景情况:
- 氧化 (MoOX) 是晶体 (c-Si) 太阳能电池中的一个关键的孔输送层 (HTL),由于其宽带间隙和高工作功能.
- 然而,MoOX的低导电性和不良接触性能限制了太阳能电池填充因子 (FF) 和整体设备性能.
研究的目的:
- 研究紫外线 (UV) 辐射对MoOX膜的影响,以调整氧气空缺.
- 为了提高MoOX作为c-Si太阳能电池中孔选择性接触的导电性和接触性能.
主要方法:
- 使用紫外线辐射对MoOX膜进行修改,以创建可调节的氧气空缺 (UV-MoOX).
- 薄膜导电性和接触电阻的表征.
- 在n-Si/i-a-Si:H/UV-MoOX/Ag太阳能电池的制造和性能测试.
主要成果:
- 与未经处理的薄膜相比,UV-MoOX薄膜具有较高的氧空缺密度和增强的导电性 (2.124 × 10-3 S/m).
- 紫外线MoOX后接触显示显著改善性能与较低的接触电阻 (20.61 mΩ·cm2).
- 使用UV-MoOX的太阳能电池实现了24.15%的功率转换效率 (PCE) 和84.82%的优异FF.
结论:
- 紫外线照射是用于太阳能电池应用中增强MoOX属性的有效方法.
- 紫外线MoOX的提高导电性和接触性能使得孔选择性优越,设备效率高.
- 这种方法为推进晶太阳能电池技术提供了一个有前途的战略.
相关概念视频
Oxygenic Photosynthesis
683
Oxygenic photosynthesis is a fundamental process in which light energy is harnessed to drive the oxidation of water, leading to the production of molecular oxygen (O₂), adenosine triphosphate (ATP), and nicotinamide adenine dinucleotide phosphate (NADPH). This process is essential for sustaining aerobic life on Earth and is primarily carried out by cyanobacteria, algae, and plants. The core of oxygenic photosynthesis lies in the thylakoid membranes, where chlorophyll pigments facilitate...
683
MOSFET: Enhancement Mode
757
Enhancement-mode MOSFETs are pivotal components in electronics, distinguished by their capacity to act as highly efficient switches. They are part of the larger family of metal-oxide Semiconductor Field-Effect Transistors (MOSFETs). They are available in two types: p-channel and n-channel, each tailored to specific polarity operations.
In their basic form, enhancement-mode MOSFETs are typically non-conductive when the gate-source voltage (Vgs) is zero. This default 'off' state means no...
In their basic form, enhancement-mode MOSFETs are typically non-conductive when the gate-source voltage (Vgs) is zero. This default 'off' state means no...
757
Voltaic/Galvanic Cells
62.9K
Spontaneous Chemical Reactions
Spontaneous redox reactions occur abundantly in nature. The chemical reaction occurring in a disposable AA battery powering our remote controls is one such example of a spontaneous redox reaction. Another example is the immersion of coiled copper wire into an aqueous silver nitrate solution. The reaction shows a gradual, visually impressive color change from colorless to bright blue and the formation of a grey precipitate on the copper wire. In this experiment,...
Spontaneous redox reactions occur abundantly in nature. The chemical reaction occurring in a disposable AA battery powering our remote controls is one such example of a spontaneous redox reaction. Another example is the immersion of coiled copper wire into an aqueous silver nitrate solution. The reaction shows a gradual, visually impressive color change from colorless to bright blue and the formation of a grey precipitate on the copper wire. In this experiment,...
62.9K
Turnover Number and Catalytic Efficiency
19.9K
The turnover number of an enzyme is the maximum number of substrate molecules it can transform per unit time. Turnover numbers for most enzymes range from 1 to 1000 molecules per second. Catalase has the known highest turnover number, capable of converting up to 2.8×106 molecules of hydrogen peroxide into water and oxygen per second. Lysozyme has the lowest known turnover number of half a molecule per second.
Chymotrypsin is a pancreatic enzyme that breaks down proteins during digestion....
Chymotrypsin is a pancreatic enzyme that breaks down proteins during digestion....
19.9K
Metal-Semiconductor Junctions
880
The contact of metal and semiconductor can lead to the formation of a junction with either Schottky or Ohmic behavior.
Schottky Barriers
Schottky barriers arise when a metal with a work function (Φm) contacts a semiconductor with a different work function (Φs). Initially, electrons transfer until the Fermi levels of the metal and semiconductor align at equilibrium. For instance, if Φm > Φs, the semiconductor Fermi level is higher than the metal's before contact. The...
Schottky Barriers
Schottky barriers arise when a metal with a work function (Φm) contacts a semiconductor with a different work function (Φs). Initially, electrons transfer until the Fermi levels of the metal and semiconductor align at equilibrium. For instance, if Φm > Φs, the semiconductor Fermi level is higher than the metal's before contact. The...
880
P-N junction
1.1K
A p-n junction is formed when p-type and n-type semiconductor materials are joined together. At the interface of the p-n junction, holes from the p-side and electrons from the n-side begin to diffuse into the opposite sides due to the concentration gradient. This diffusion of carriers leads to a region around the junction where there are no free charge carriers, known as the depletion region. The charge density within the depletion region for the n-side and p-side can be described by the...
1.1K


