Locally grown Cu(In,Ga)Se2 micro islands for concentrator solar cells

该项目的目的是使用两种不同的激光辅助沉积方法以微米级Cu（In，Ga）Se 2岛（µCIGS）的形式生长高质量的光伏材料，并同时了解这些过程的物理背景。使用在Leibniz-Institut für Kristallzüchtung柏林（IKZ）和Bundesanstalt für Materialforschung und -prüfung柏林（BAM）建立的在先前激光纹理化的基底上局部沉积金属微点阵列的方法，或BAM计划的材料的激光诱导向前转移（LIFT），铜的金属岛，铟和镓将局部沉积，然后在RTP（快速热处理）步骤中硫化或硒化到CIGS吸收剂中，该步骤可在柏林自由大学（FUB）（以及柏林亥姆霍兹材料与能源中心（HZB））获得。对于不同的材料沉积方法的影响，后来的吸收剂的性能和质量，以及它们的潜在的适用性，在光化学将进行详细的比较和研究。对于这类材料，进入了一个新的研究领域。该项目由柏林联邦大学协调。

The aim of the project is to grow high quality photovoltaic material in form of micrometer-sized Cu(In,Ga)Se2 islands (µCIGS) using two different laser-assisted deposition methods and to simultaneously understand the physical background of these processes. Using the method of local deposition of metallic micro-dot arrays on previously laser-textured substrates, which was established at the Leibniz-Institut für Kristallzüchtung Berlin (IKZ) and the Bundesanstalt für Materialforschung und -prüfung Berlin (BAM), or the laser-induced forward transfer (LIFT) of material planned at BAM, metallic islands of Copper, Indium and Gallium will be locally deposited and then sulfurized or selenized to CIGS absorbers in an RTP (rapid thermal processing) step available at the Freie Universität Berlin (FUB) (together with the Helmholtz-Zentrum Berlin für Materialien und Energie (HZB)). For the different methodologies of material deposition the influences on the later absorber properties and qualities as well as their potential applicability in photovoltaics will be compared and investigated in detail. For this class of materials a new research field is entered. The project is coordinated by the FU Berlin.