Solar Cell Annealing

Solar cell annealing refers to a broad range of applications whereby thermal and atmospheric treatment can enhance, improve or restore cell performance. Areas of interest include; treatment Solar Cell Annealing Furnaceof passivation layers used in advanced cell structures, contact repair, NiSi formation and Laser Fired Contact damage repair. Many of these applications are processed in temperatures below 500°C and in inert or forming gas atmosphere.

BTU has a long history of supplying industry with inert and hydrogen atmosphere annealing furnaces. Whether it is high purity muffle applications or general purpose muffle-less applications, BTU has a unique set of capabilities, know-how and experience supporting precision temperature and atmosphere applications.

Uniform exposure to the correct temperature profile and atmosphere are critical performance attributes in solar cell annealing applications. BTU employs Solar Cell Annealing Profileautomated thermal controls and segmented heated sections enabling the user to control temperature uniformity to within ±2°C across the belt. Atmosphere controls allow the user to operate in an inert atmosphere or up to 95% hydrogen at 2 parts per million above source. Patented solutions such as heat and gas barrier technology provide precision capabilities for thermal profile tuning and atmosphere control. BTU's annealing furnaces feature BTU's proprietary WINCON™ control system.   WINCON features a simplified user interface and incredibly powerful analytical capabilities.  

Contact BTU today to schedule a trial in our fully equipped and staffed solar applications laboratories.


Solar Cell


In The News

BTU’s Solar Experts Present at CPTIC 2012 

BTU International Receives Order for Multiple Solar Cell Rework Furnaces 

See BTU’s Thermal Processing Equipment at the International Green Energy Expo


Papers & Articles

Mechanistic Study of Forming Gas Annealing of c-Si Solar Cell Electrodes

Solar Cell Process Temperature Measurements