Abstract
To achieve efficient carrier extraction from nanocrystal quantum dots, we introduce a novel tandem cell device using PbSe nanocrystal quantum dots and a P3HT/PCBM bulk hetero junction cell. The device is fabricated using an all solution based process. The device consists of a hydrazine treated PbSe nanocrystal photoconductive film coupled to the P3HT/PCBM bulk hetero junction cell. In this work, the photocurrent from the PbSe nanocrystal photoconductive layer, and the role of carrier multiplication at UV wavelengths, is elucidated. By using light biased spectral response measurements, we successfully demonstrate an enhancement of quantum efficiency at photon energies greater than three times the bandgap of the PbSe nanocrystals. Additionally, this tandem structured device shows a self-passivation property that provides protection from UV irradiation to the underlying polymer cell.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of SPIE - The International Society for Optical Engineering |
| Volume | 7047 |
| DOIs | |
| State | Published - Nov 21 2008 |
| Externally published | Yes |
| Event | Nanoscale Photonic and Cell Technologies for Photovoltaics - San Diego, CA, United States Duration: Aug 11 2008 → Aug 13 2008 |
Other
| Other | Nanoscale Photonic and Cell Technologies for Photovoltaics |
|---|---|
| Country | United States |
| City | San Diego, CA |
| Period | 8/11/08 → 8/13/08 |
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Keywords
- Carrier multiplication
- PbSe
- Polymer solar cell
- Self-passivating
- Tandem cells
ASJC Scopus subject areas
- Applied Mathematics
- Computer Science Applications
- Electrical and Electronic Engineering
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
Cite this
Tandem inorganic/organic hybrid solar cell using a PbSe nanocrystal photoconductor for carrier multiplication. / Kim, Sung Jin; Kim, Won Jin; Cartwright, Alexander N.; Prasad, Paras N.
Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7047 2008. 70470O.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Tandem inorganic/organic hybrid solar cell using a PbSe nanocrystal photoconductor for carrier multiplication
AU - Kim, Sung Jin
AU - Kim, Won Jin
AU - Cartwright, Alexander N.
AU - Prasad, Paras N.
PY - 2008/11/21
Y1 - 2008/11/21
N2 - To achieve efficient carrier extraction from nanocrystal quantum dots, we introduce a novel tandem cell device using PbSe nanocrystal quantum dots and a P3HT/PCBM bulk hetero junction cell. The device is fabricated using an all solution based process. The device consists of a hydrazine treated PbSe nanocrystal photoconductive film coupled to the P3HT/PCBM bulk hetero junction cell. In this work, the photocurrent from the PbSe nanocrystal photoconductive layer, and the role of carrier multiplication at UV wavelengths, is elucidated. By using light biased spectral response measurements, we successfully demonstrate an enhancement of quantum efficiency at photon energies greater than three times the bandgap of the PbSe nanocrystals. Additionally, this tandem structured device shows a self-passivation property that provides protection from UV irradiation to the underlying polymer cell.
AB - To achieve efficient carrier extraction from nanocrystal quantum dots, we introduce a novel tandem cell device using PbSe nanocrystal quantum dots and a P3HT/PCBM bulk hetero junction cell. The device is fabricated using an all solution based process. The device consists of a hydrazine treated PbSe nanocrystal photoconductive film coupled to the P3HT/PCBM bulk hetero junction cell. In this work, the photocurrent from the PbSe nanocrystal photoconductive layer, and the role of carrier multiplication at UV wavelengths, is elucidated. By using light biased spectral response measurements, we successfully demonstrate an enhancement of quantum efficiency at photon energies greater than three times the bandgap of the PbSe nanocrystals. Additionally, this tandem structured device shows a self-passivation property that provides protection from UV irradiation to the underlying polymer cell.
KW - Carrier multiplication
KW - PbSe
KW - Polymer solar cell
KW - Self-passivating
KW - Tandem cells
UR - http://www.scopus.com/inward/record.url?scp=56249088646&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=56249088646&partnerID=8YFLogxK
U2 - 10.1117/12.796111
DO - 10.1117/12.796111
M3 - Conference contribution
AN - SCOPUS:56249088646
SN - 9780819472670
VL - 7047
BT - Proceedings of SPIE - The International Society for Optical Engineering
ER -