Abstract
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.
| Original language | English |
|---|---|
| Title of host publication | ACS National Meeting Book of Abstracts |
| Publication status | Published - 2007 |
| Event | 234th ACS National Meeting - Boston, MA, United States Duration: Aug 19 2007 → Aug 23 2007 |
Other
| Other | 234th ACS National Meeting |
|---|---|
| Country | United States |
| City | Boston, MA |
| Period | 8/19/07 → 8/23/07 |
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ASJC Scopus subject areas
- Chemistry(all)
Cite this
Cadmium-stabilized lead selenide nanocrystals for use in solar cells. / Pietryga, Jeffrey M.; Casson, Joanna L.; Schaller, Richard D.; Klimov, Victor I.; Hollingsworth, Jennifer A.
ACS National Meeting Book of Abstracts. 2007.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Cadmium-stabilized lead selenide nanocrystals for use in solar cells
AU - Pietryga, Jeffrey M.
AU - Casson, Joanna L.
AU - Schaller, Richard D.
AU - Klimov, Victor I.
AU - Hollingsworth, Jennifer A.
PY - 2007
Y1 - 2007
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 - http://www.scopus.com/inward/record.url?scp=37349003874&partnerID=8YFLogxK
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M3 - Conference contribution
SN - 0841269556
SN - 9780841269552
BT - ACS National Meeting Book of Abstracts
ER -