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Title:
 
Can Resonant Tunneling Diodes Be Used for Hot-Carrier Solar Cells?
 
Author(s):
 
Y. Takeda, A. Ichiki, Y. Kusano, N. Sugimoto, T. Motohiro
 
Keywords:
 
Quantum Well, Quantum Dot, Detailed Balance, Resonant Tunneling, Hot Carrier Solar Cell
 
Topic:
 
NEW MATERIALS AND CONCEPTS FOR SOLAR CELLS AND MODULES
Subtopic: New Materials and Concepts for cells
Event: 31st European Photovoltaic Solar Energy Conference and Exhibition
Session: 1CO.10.2
 
Pages:
 
62 - 66
ISBN: 3-936338-39-6
Paper DOI: 10.4229/EUPVSEC20152015-1CO.10.2
 
Price:
 
 
0,00 EUR
 
Document(s): paper
 

Abstract/Summary:


Among the four features unique to hot-carrier solar cells (HC-SCs): (i) carrier thermalization time and (ii) carrier equilibration time in the absorber, (iii) energy-selection width, and (iv) conductance of the energyselective contacts (ESCs), the requisites of (i)-(iii) have been clarified. To find the required values of (iv), we have improved the detailed balance model of HC-SC operation to involve a finite value of the ESC conductance. We have also derived a formulation to calculate the conductance of resonant tunneling diodes (RTDs) consisting of semiconductor quantum dots (QDs) and quantum wells (QWs) based on the rigorous solutions of the effective-mass Hamiltonians, and found that the requisite of (iv) can be, in principle, fulfilled using the QD- and QW-RTDs.