High throughput quantum efficiency combinatorial characterization tool and method for combinatorial solar test substrates

Patent metadata

Field	Value
Publication number	US-9103871-B2
Application number	US-201314077545-A
Country	US
Kind code	B2
Filing date	Nov 12, 2013
Priority date	May 12, 2010
Publication date	Aug 11, 2015
Grant date	Aug 11, 2015

Abstract

Simultaneous measurement of an internal quantum efficiency and an external quantum efficiency of a solar cell using an emitter that emits light; a three-way beam splitter that splits the light into solar cell light and reference light, wherein the solar cell light strikes the solar cell; a reference detector that detects the reference light; a reflectance detector that detects reflectance light, wherein the reflectance light comprises a portion of the solar cell light reflected off the solar cell; a source meter operatively coupled to the solar cell; a multiplexer operatively coupled to the solar cell, the reference detector, and the reflectance detector; and a computing device that simultaneously computes the internal quantum efficiency and the external quantum efficiency of the solar cell.

First claim

What is claimed is:

1. A multi-pin apparatus for measuring quantum efficiency of each of a plurality of site isolated solar cells on a substrate, the apparatus comprising:
an emitter providing emitted light;
a three-way beam splitter operatively coupled to the emitter to split the emitted light into solar cell light and reference light, wherein the solar cell light strikes the plurality of solar cells;
a sample tray operatively coupled to the substrate and positioned at a dist…

Assignees

• Intermolecular Inc

Inventors

• Wang Yun
• Chiang Tony P
• Lang Chi-I

Classifications

• G01R31/2605 Primary

  Physics · mapped topic

• H02S50/10 Primary

  Electricity · mapped topic

• G01N21/55

  Physics · mapped topic

• G01R31/2607

  Physics · mapped topic

• G01R31/26 Primary

  Physics · mapped topic