NDLI: Electronic up-conversion: a combination of the advantages of impurity photovoltaics and (optical) up-conversion

Content Provider	IEEE Xplore Digital Library
Author	Harder, N.-P. Macdonald, D.
Copyright Year	2005
Abstract	In this paper we discuss 'electronically coupled up-conversion' (ECUC) a new concept for improving solar cell efficiency, which is closely related to impurity photovoltaics (IPV) and (optically coupled) up-conversion (OCUC). The main advantages of ECUC over IPV are the same as those of OCUC over IPV: The solar cell is separated from the up-conversion process and is therefore only minimally influenced by the up-conversion. Furthermore, ECUC allows in the same way as OCUC a simple realization of natural photon energy selectivity. On the other hand, the main difference between ECUC and OCUC is that in ECUC the stepwise-excited electron-hole (e-h) pairs are injected directly into the solar cell without a 'detour' via radiative recombination. Due to this difference the demanding requirements regarding the radiative efficiency of the up-converter material do not apply. We develop an idealized detailed balance description of the ECUC concept and calculate the corresponding optimum energy thresholds and efficiency limits. In particular we calculate the idealized ECUC efficiency for a crystalline silicon solar cell and an electronic up-converter made of amorphous silicon. Furthermore we discuss the impact of non-radiative recombination.
Sponsorship	IEEE Electron Devices Soc. (USA)
Starting Page	110
Ending Page	113
File Size	866835
Page Count	4
File Format	PDF
ISBN	0780387074
ISSN	01608371
DOI	10.1109/PVSC.2005.1488081
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-01-03
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Impurities Photovoltaic cells Spontaneous emission Stimulated emission Optical coupling Radiative recombination Amorphous silicon Photonic band gap Crystalline materials Solar energy
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in