@article {Kumar2015,
	title = {Strategic review of secondary phases, defects and defect-complexes in kesterite CZTS{\textendash}Se solar cells},
	journal = {Energy Environ. Sci.},
	volume = {8},
	year = {2015},
	month = {Jan-01-2015},
	pages = {3134 - 3159},
	issn = {1754-5692},
	doi = {10.1039/C5EE02153G},
	url = {http://xlink.rsc.org/?DOI=C5EE02153G},
	author = {Kumar, Mukesh and Dubey, Ashish and Adhikari, Nirmal and Venkatesan, Swaminathan and Qiao, Qiquan}
}
@article {Shockley1961,
	title = {Detailed Balance Limit of Efficiency of p-n Junction Solar Cells},
	journal = {Journal of Applied Physics},
	volume = {32},
	number = {3},
	year = {1961},
	pages = {510-519},
	publisher = {AIP},
	doi = {10.1063/1.1736034},
	url = {http://link.aip.org/link/?JAP/32/510/1},
	author = {William Shockley and Hans J. Queisser}
}
