@book{30952,
	author = {Grätzel, Michael, ed.},
	title = {Photonics and Optoelectronics Meetings (POEM) 2009: Solar Cells, Solid State Lighting, and Information Display Technologies},
	publisher = {SPIE},
	year = {2009},
	series = {Proceedings of SPIE; V. 7518},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/7518}
}