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Title: A plasticized polymer-electrolyte-based photoelectrochemical solar cell

A photoelectrochemical solar cell based on an n-GaAs/polymer-redox-electrolyte junction is reported. Di(ethylene glycol) ethyl ether acrylate containing ferrocene as a redox species and benzoin methyl ether as a photoinitiator is polymerized in situ. Propylene carbonate is used as a plasticizer to improve the conductivity of the polymer redox electrolyte. For thin (1 {micro}m) polymer electrolytes, the series resistance of the cell is negligible. However, the short-circuit photocurrent density of the cell at light intensities above 10 mW/cm{sup 2} is limited by mass transport of redox species within the polymer matrix. At a light intensity of 70 mW/cm{sup 2}, a moderate light-to-electrical energy conversion efficiency (3.1%) is obtained. The interfacial charge-transfer properties of the cell in the dark and under illumination are studied.
Authors:
; ;  [1]
  1. National Renewable Energy Lab., Golden, CO (United States)
Publication Date:
OSTI Identifier:
599661
DOE Contract Number:
AC36-83CH10093
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of the Electrochemical Society; Journal Volume: 145; Journal Issue: 1; Other Information: PBD: Jan 1998
Sponsoring Org:
USDOE, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; GALLIUM ARSENIDE SOLAR CELLS; PLASTICIZERS; POLYMERS; SOLID ELECTROLYTES; ELECTRIC CONDUCTIVITY; PHOTOCURRENTS; CURRENT DENSITY; QUANTUM EFFICIENCY; CHARGE TRANSPORT; EXPERIMENTAL DATA