The route towards low-cost solution-processed high Voc solar cells

Eran Edri, Saar Kirmayer, Lee Barnea-Nehoshtan, Sabyasachi Mukhopadhyay, Michael Kulbak, Yaron Tidhar, Boris Rybtchinski, David Cahen, Gary Hodes

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

All photovoltaic device efficiencies are limited by the 'threshold' process inherent in how photovoltaic devices work: a photon above a certain energy level is required to excite an electron that will later be extracted as electrical current. This sets a limit to the efficiency of solar power conversion to electricity of a 'single threshold' system to about 30%. Differentiating the threshold to two 'steps' increases the theoretical limit to 42%. One of the proposed ways to achieve this is by splitting the solar spectrum and guide each part to a different device, each with a different threshold energy, matching a different portion of the solar spectrum. If the devices are stacked, this is called a tandem configuration. To make such a approach worthwhile, a photovoltaic device that uses the high-energy portion of the solar spectrum efficiently is required. Current available options are extremely costly and are not feasible for large-scale application, or are insufficiently inefficient to make their use worthwhile.

Original languageEnglish
Title of host publication2014 IEEE Photonics Conference, IPC 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages443-444
Number of pages2
ISBN (Electronic)9781457715044
DOIs
Publication statusPublished - Dec 22 2014
Event27th IEEE Photonics Conference, IPC 2014 - San Diego, United States
Duration: Oct 12 2014Oct 16 2014

Publication series

Name2014 IEEE Photonics Conference, IPC 2014

Other

Other27th IEEE Photonics Conference, IPC 2014
CountryUnited States
CitySan Diego
Period10/12/1410/16/14

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ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

Cite this

Edri, E., Kirmayer, S., Barnea-Nehoshtan, L., Mukhopadhyay, S., Kulbak, M., Tidhar, Y., Rybtchinski, B., Cahen, D., & Hodes, G. (2014). The route towards low-cost solution-processed high Voc solar cells. In 2014 IEEE Photonics Conference, IPC 2014 (pp. 443-444). [6995439] (2014 IEEE Photonics Conference, IPC 2014). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IPCon.2014.6995439