TY - GEN
T1 - The impact of quantum yield through limiting efficiency for multiple exciton generation with intermediate band solar cells
AU - Lee, Jongwon
AU - Honsberg, Christiana
PY - 2013
Y1 - 2013
N2 - We develop the hybrid thermodynamic limit model using the intermediate band solar cells assisted with multiple exciton generation under blackbody radiation. For this hybrid solar cell model, we manage the spectral splitting to maximize the generated number of electron and hole pairs (EHP). First, we have separated two areas to explain the carrier transition. For regarding of quantum yield and charge neutrality, the multiple EHPs are generated at barrier bandgap and one carrier generation is in quantum dot. Thus, to extract additional carrier in quantum dot, it is required additional absorption paths or more photon energy. After studying the procedure of carrier multiplication in intermediate band solar cells, we have calculated the theoretical conversion efficiencies with number of generated EHPs. Its maximum theoretical efficiencies are increased and optimum bandgap is lowered compared to conventional intermediate band solar cells. And, based on these results, we can also choose the suitable material for these hybrid solar cells.
AB - We develop the hybrid thermodynamic limit model using the intermediate band solar cells assisted with multiple exciton generation under blackbody radiation. For this hybrid solar cell model, we manage the spectral splitting to maximize the generated number of electron and hole pairs (EHP). First, we have separated two areas to explain the carrier transition. For regarding of quantum yield and charge neutrality, the multiple EHPs are generated at barrier bandgap and one carrier generation is in quantum dot. Thus, to extract additional carrier in quantum dot, it is required additional absorption paths or more photon energy. After studying the procedure of carrier multiplication in intermediate band solar cells, we have calculated the theoretical conversion efficiencies with number of generated EHPs. Its maximum theoretical efficiencies are increased and optimum bandgap is lowered compared to conventional intermediate band solar cells. And, based on these results, we can also choose the suitable material for these hybrid solar cells.
KW - Bangap
KW - Efficiency
KW - Intermediate band solar cell
KW - Multiple exciton generation
KW - Thermodynamic limit
UR - http://www.scopus.com/inward/record.url?scp=84896452820&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84896452820&partnerID=8YFLogxK
U2 - 10.1109/PVSC.2013.6744319
DO - 10.1109/PVSC.2013.6744319
M3 - Conference contribution
AN - SCOPUS:84896452820
SN - 9781479932993
T3 - Conference Record of the IEEE Photovoltaic Specialists Conference
SP - 1041
EP - 1045
BT - 39th IEEE Photovoltaic Specialists Conference, PVSC 2013
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 39th IEEE Photovoltaic Specialists Conference, PVSC 2013
Y2 - 16 June 2013 through 21 June 2013
ER -