Methods to reduce the loss of solar panel efficiency

Methods to reduce the loss of solar panel efficiency

The main reason for the current solar panel conversion inefficiency is the loss of "low-energy photon energy" and "high-energy photon energy", both of which limit the theoretical limiting efficiency of solar panels to about 40%. The following is a brief description of how to improve each loss mechanism.

1. Reduce the energy loss of low-energy photons

Using low bandgap optoelectronic semiconductor materials, for example, typical crystalline silicon has a bandgap of 1.1 eV and therefore can only absorb photons with wavelengths shorter than 1100 nm.

2. Reduce high-energy photon energy loss

The use of high bandgap optoelectronic semiconductor materials. The first two points, the combination of multi-band gap semiconductor materials can effectively improve the use of different energy photons.

3. Reduce the absorption efficiency and reflection loss: (1) maximize the use of high light absorption coefficient of the semiconductor material; (2) reduce the area of the metal electrode, with transparent conductive electrode to replace part of the metal electrode; (3) increase the surface roughness of the material, Antireflection materials are used to reduce the reflection loss caused by surface reflections.

4. Reduce the open circuit voltage loss. Adjust the concentration of doping impurities and the Fermi level of raw materials.

5. Reduce the fill factor loss: (1) the use of surface passivation layer on the surface of the solar panel or the back of the electrode to reduce dangling bonds; (2) the use of high purity (low impurity) solar panel materials and better preparation process Reduce the body compound within the device; (3) Use a good conductor as the electrode, and use a better electrode structure design to reduce series resistance.

Shenzhen Di Sheng Energy Technology Co., Ltd. was founded in 2009, is China's most professional small solar module manufacturers and solutions provider, the company mastered a variety of solar cell packaging and core research and development technology and small solar modules MPPT charging circuit and micro Light charging circuit. Continuous innovation and optimization, Di Sheng company's products have a unique core competencies.

Di Sheng Energy has always been adhering to the service concept of "innovating technology, serving customers and creating prices for customers' products". From the design requirements of customers, DiSheng Energy reforms and innovates the packaging technology of solar cells, giving our customers new competitiveness in solar energy application products. Di Sheng solar panels widely used in solar cell phones, mobile power, wearable devices, Bluetooth headset speakers, GPS, electric vehicles, outdoor lighting and other outdoor use of electronic products. In the company of all staff efforts, Di Sheng with exquisite appearance and superior electrical performance, met with ZTE, Mobile, Topband, Germany SINVALLEY companies such as the establishment of a good relationship of cooperation.

After the long-term efforts of all staff, Di Sheng Energy has passed the ISO9001 international quality system certification, Di Sheng always follow the efficient management and strict production standards and thus produce first-class quality solar panels, widely favored customers. Changing information rapidly changing products, the same is our service concept for customers. Looking ahead, Di Sheng will be more positive to meet the challenges of the market, to provide customers with competitive solar panels and solutions. Let solar products really into the tens of thousands of households, for the Earth's low-carbon environmental protection to make its own contribution.

Sunshine and electricity counterparts, Di Sheng accompanied with you.