skip to main content

Title: Enhanced performance of branched TiO{sub 2} nanorod based Mn-doped CdS and Mn-doped CdSe quantum dot-sensitized solar cell

TiO{sub 2} branched nanostructures could be efficient as photoanodes for quantum dot-sensitized solar cells (QDSCs) due to their large surface area for QD deposition. In this study, Mn-doped CdS/Mn-doped CdSe deposited branched TiO{sub 2} nanorods were fabricated to enhance the photovoltaic performance of QDSCs. Mn doping in CdS and CdSe retards the recombination losses of electrons, while branched TiO{sub 2} nanorods facilitate effective electron transport and compensate for the low surface area of the nanorod structure. As a result, the charge-transfer resistance (R{sub CT}), electron lifetime (τ{sub e}), and the amount of QD deposition were significantly improved with branched TiO{sub 2} nanorod based Mn-doped CdS/Mn-doped CdSe quantum dot-sensitized solar cell.
Authors:
; ; ;  [1]
  1. Department of Electrical Engineering, Pusan National University, Busan 609-735 (Korea, Republic of)
Publication Date:
OSTI Identifier:
22402903
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 117; Journal Issue: 16; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CADMIUM SELENIDES; CADMIUM SULFIDES; DEPOSITION; DOPED MATERIALS; ELECTRONS; LIFETIME; MANGANESE COMPOUNDS; PERFORMANCE; PHOTOANODES; PHOTOVOLTAIC EFFECT; QUANTUM DOTS; RECOMBINATION; SOLAR CELLS; SURFACE AREA; TITANIUM OXIDES