TY - GEN
T1 - Cadmium-stabilized lead selenide nanocrystals for use in solar cells
AU - Pietryga, Jeffrey Michael
AU - Casson, Joanna Lee
AU - Schaller, Richard D.
AU - Klimov, Victor Ivanovich
AU - Hollingsworth, Jennifer Ann
PY - 2007/12/31
Y1 - 2007/12/31
N2 - Their unique optical properties have made semiconductor nanocrystals (NCs) the subject of intense research for use in solar cells. Even in the simplest scenario, in which semiconductor NCs are used as replacements for dyes in dye-sensitized cells, there is great potential for increased efficiency because of the broad-band, high-cross-section absorbance spectra, increased photostability and "carrier multiplication" (CM) demonstrated by semiconductor NCs. Lead selenide (PbSe) NCs are an especially promising candidate, because they possess near-to-mid infrared optical band gaps, and have demonstrated efficient CM. However, PbSe NCs are unstable under ambient conditions, undergoing band gap shifts and reduced surface quality that preclude their use in solar cells. Investigation of this instability has led to a method for stabilizing PbSe NCs with unique advantages to possible solar cell application. We will present the results of that study, along with a comparison study performed on the new cadmium-stabilized PbSe NCs.
AB - Their unique optical properties have made semiconductor nanocrystals (NCs) the subject of intense research for use in solar cells. Even in the simplest scenario, in which semiconductor NCs are used as replacements for dyes in dye-sensitized cells, there is great potential for increased efficiency because of the broad-band, high-cross-section absorbance spectra, increased photostability and "carrier multiplication" (CM) demonstrated by semiconductor NCs. Lead selenide (PbSe) NCs are an especially promising candidate, because they possess near-to-mid infrared optical band gaps, and have demonstrated efficient CM. However, PbSe NCs are unstable under ambient conditions, undergoing band gap shifts and reduced surface quality that preclude their use in solar cells. Investigation of this instability has led to a method for stabilizing PbSe NCs with unique advantages to possible solar cell application. We will present the results of that study, along with a comparison study performed on the new cadmium-stabilized PbSe NCs.
UR - https://www.scopus.com/pages/publications/37349003874
M3 - Conference contribution
SN - 0841269556
SN - 9780841269552
T3 - ACS National Meeting Book of Abstracts
BT - 234th ACS National Meeting, Abstracts of Scientific Papers
T2 - 234th ACS National Meeting
Y2 - 31 December 2007
ER -