Cuprite (Cu2O) Rydberg Excitons 2 for Integration with Photonics PDF File: Cuprite (Cu2O) Rydberg Excitons 2 for Integration with Photonics This should be displaying Cuprite (Cu2O) Rydberg Excitons 2 for Integration with Photonics inline. If it's not, look to see if your browser is set to automatically download pdf files. Materials Cuprite