1. Optical
Materials Engineering Laboratory, ETH Zurich, 8092 Zurich, Switzerland
2. Department
of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
3. Photo-Electronic
Hybrids Research Center, Korea Institute of Science and Technology, Seoul, 136-791, South Korea
4. Department
of Chemical and Biological Engineering, University of New Mexico, Albuquerque, New Mexico 87131, United States
5. Department
of Chemical and Biological Engineering, University of Colorado, Boulder, Colorado 80303, United States