Ctf Solar Gmbh

China Triumph International Engineering Co., Ltd.

China Thumph International Engineering Co., Ltd.

Smit Thermal Solutions B.v.

China Triumpf International Engineering Co. Ltd.

Michael Harr

Shou Peng

Bastian Siepchen

Xinjian Yin

Ganhua Fu

Krishnakumar Velappan

Christian Drost

Christian Kraft

Sven Frauenstein

Zhizhong Liao

Marcel Mischke

Daniele Menossi

Stefan Rau

Peng Shou

Sebastian Tittel

Hilmar Richter

Steffen George

Werner Schade

Gerard Kaper

Wiro Zijlmans

Ralf Steudten

Steffen Bossert

The present invention proposes a method to form a double-graded CdSeTe thin film. The method comprises providing a base substrate, forming a first CdSeTelayer having a first amount wof selenium in it, forming a second CdSeTelayer having a second amount wof selenium in it and forming a third CdSeTelayer having a third amount wof selenium in it. The second amount wlies in the range between 0.25 and 0.4, whereas each of the amounts wand wlies in the range extending from 0 to 1. According to the present invention, the energy gap in the first and the third CdSeTelayers is equal to or higher than 1.45 eV and the energy gap in the second CdSeTelayer lies in the range between 1.38 eV and 1.45 eV and is smaller than the energy gap in the first and the third CdSeTelayers.

Method for producing a double graded CdSeTe thin film structure

The present invention relates to a method and an apparatus for determining the position of a substrate within a closed chamber, wherein the substrate is moved within the chamber by a transport system comprising at least one rotating shaft. A load-converting element is provided adjacent to at least one of the rotating shafts, wherein the load-converting element detects a load acting on the at least one rotating shaft and converts it into an electrical parameter. While no substrate is present on the at least one rotating shaft, a first output signal corresponding to a first value of the electrical parameter is measured. The output signal is then monitored and a presence of the substrate on the at least one rotating shaft is detected when the output signal differs from the first output signal by at least a predetermined amount.

Method for determining a substrate position in a closed chamber and apparatus for performing the method

Object of the invention is to provide a new thin film device comprising at least one thin film cell, wherein the thin film cell comprises a first electrode, a photoactive layer and a second electrode, wherein the photoactive layer is arranged between the first and the second electrode, wherein at least one additional conductive line is arranged within an active area of the thin film cell and included in the photoactive layer and electrically interconnected with the first electrode and electrically insulated from the second electrode. Furthermore, the invention provides a method of forming a thin film device comprising at least one thin film cell, wherein the thin film cell comprises a first electrode, a photoactive layer and a second electrode and the photoactive layer is arranged between the first and the second electrode.

Thin film device with additional conductive lines and method for producing it

The subject of this invention is a method for testing the data and control interface of individual machines intended for interconnection in an inline system for solar cell production. Furthermore, an Interface-Tester suitable for executing the testing method is disclosed. The method for testing comprises the steps of feeding a dummy workpiece to the tested machine and connecting the interface tester to the standard interface of the machine. Consecutively the interface tester sends controlling signals to the machine and receives the signals from the tested machine. The received signals are compared to reference signals and evaluated. The interface tester comprises a standard interface for coupling the machines in an inline system for solar cell production. Furthermore, the interface tester is equipped with at least one CPU, a volatile and/or non-volatile memory, communication modules, couplers and connectors and at least one human-machine interface.

Method for testing a standard interface and interface-tester

The present invention proposes a method to form a CdSeTe thin film with a defined amount of selenium and with a high quality. The method comprises the steps of providing a base substrate and of depositing a partial CdSeTe layer on a first portion of the base substrate. The step of depositing a partial CdSeTe layer is performed at least twice, wherein a predetermined time period without deposition of a partial CdSeTe layer on the first portion of the base substrate is provided between two subsequent steps of depositing a partial CdSeTe layer. The temperature of the base substrate and the CdSeTe layer already deposited on the first portion of the base substrate is controlled during the predetermined time period such that re-evaporation of Cd and/or Te from the CdSeTe layer already deposited takes place.

Method to deposit thin film high quality absorber layer

The present invention describes a method for producing CdTe thin-film solar cells, in which special parameters of different processing steps and a special sequence of processing steps result in improved characteristics of the produced CdTe solar cells.

Method for producing a CdTe thin-film solar cell

Growing community of inventors

Dresden, Germany

Michael Harr