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Efficient Spray-Coated Colloidal Quantum Dot Solar Cells

Advanced materials (Deerfield Beach, Fla.) | 11 Nov 2014

IJ Kramer, JC Minor, G Moreno-Bautista, L Rollny, P Kanjanaboos, D Kopilovic, SM Thon, GH Carey, KW Chou, D Zhitomirsky, A Amassian and EH Sargent
Abstract
A colloidal quantum dot solar cell is fabricated by spray coating under ambient conditions. By developing a room temperature spray coating technique and implementing a fully automated process with near monolayer control-an approach termed as sprayLD-an electronic defect is eliminated resulting in solar cell performance and statistical distribution superior to prior batch-processed methods along with hero performance of 8.1%.
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Concepts
IBM, Photovoltaics, Diode, Photoelectric effect, Band gap, Cadmium, Solar cell, Quantum dot
MeSH headings
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