Long-lasting, visible and near-infrared chemiluminescence from multi-layer films by mechanical activation

Multi-layer films consisting of oxalate, hydrogen peroxide and various fluorescers are mechanically activated to emit the visible and near-infrared chemiluminescent light. By optimization of composition and thickness of each layer, chemiluminescence can be long lasting, typically over 30 min. The simple pattern displays have also been demonstrated. - Highlights: • Peroxyoxalate chemiluminescence (CL) from a solid multi-layer film has been achieved. • Visible and near infrared CL occurs through mechanical activation. • The CL light can be long lasting, typically over 30 min. • Simple CL display has been demonstrated by the method of array and print pattern.