FAQ ABOUT SPACE SOLAR CELL YOU WANT TO KNOW

Pre-sales service and after-sales service, details pls refer to RESOURCES-TECH TIPS.

Accepted Delivery Terms: FOB, CFR,CIF, EXW, CIP,FCA,DDP,EXPRESS DELIVERY.

Accepted Payment Currency: USD,EURO, RMB

Language Spoken: Chinese, English, etc..

1. In addition to general product introductions, we can also help customers select the right device model based on the desired end product category.

2. Design cost-effective solar cells and space power systems according to customer's specific requirements.

1. After receiving the advance payment, we will arrange production immediately. Detailed delivery times can be negotiated according to custom requirements.

2. In the solar cell manufacturing process, we will communicate with customers in a timely manner and provide regular feedback on production planning.

3. Regular inspections and strict quality control are available in every production process.

We want to build long-term friendly relationships with our customers. We are customer-oriented and constantly strive to meet the needs of our customers and protect their interests.

We have professional after-sales service personnel to provide thoughtful 24 hours service to ensure that each of our customers can rest assured when buying and using our solar cells.

1. After production, we can provide photos and test report of solar cells. Free on-site training is only available in China, and travel and accommodation costs are borne by the customer.

2. YIM solar cells are backed by a one-year warranty. During this time, we can provide a free replacement service, except for the replacement of consumables or equipment that is damaged or malfunctioned due to human factors and force majeure.

3. For quality problems found during the use of solar cells, we will respond within 24 hours after receiving the user notification.

4. Help users solve solar battery failure problems.

5. We provide multilingual services. Customers can get clear technical solutions by phone or online consultation.

6. We provide solar cell parts and accessories. Technical support is also available.

Handling and storage

SPACE solar cells contain harmful substances arsenic (As) and phosphorus (P) and shall be handled with care using appropriate hand protection (eg. latex gloves). Human consumption of cells, broken pieces and inhalation of dust may results in health reasons and should be avoided. In case of direct skin contact, hand washing is strongly recommended.

In case of the cell breakage, cleaning up of contaminated parts is recommended.The use vacuum tweezers for handling is recommended.The cell shall be protected from humidity and moisture, which may cause oxidation and corrosion of Ge substrate and other parts of the solar cell (metallization, III/Vsemiconductor materials, ARC).

The cells shall be transported and stored in dry conditions. Outgasing of any substances from the storage package has to be avoided.

The recommended material for front side interconnectors is gold or silver.

Soldering process requires the use silver-saturated solder to avoid dissolution of the cell metallisation. The soldering process temperature should not exceed 300°C for short time (about 1 min).The recommended solder material should be Sn96.5/Ag3.5 or any other suitable silversaturated solder. For mounting a secondary optics or a cover glass on top of the cell, flexible glue is required to avoid mechanical strain to the cell and, especially, to the metal fingers.

For cleaning purposes, ethanol or isopropyl alcohol are allowed at dimed light conditions.Different solvents in combination with light or induced voltage could stimulate dendrite growth on the metallisation, which caused by silver electro-migration. Shearing force to the metal finger grid shall be avoided.

Smearing metal over the cell edge is not allowed due to risk of the short-circuit.

At any process- and operation condition, solar cells shall be protected from electrical discharge.

The cell shall not overcome a maximum operation temperature of 150°C.

The cell operation at open-circuit condition is not allowed. There is a serious risk to overheat the cell or its local areas which could damage the cell. An inhomogeneous illumination could cause local overheating. The inhomogeneity of the cell illumination shall not exceed factor 2.

In a module, each solar cell has to be protected by a bypass diode.Current and/or voltage spikes during operation, connection and disconnection to the grid should be avoided