ゼロ次元ペロブスカイト量子ハイブリッドを用いた高効率陽電池に関する研究

在本财政年度，我们将开发一种方法，将甲基碘化铋铵（MABI）纳米晶体喷涂到加热的衬底上，并将其集成到单结原型太阳能电池器件中。太阳能电池将通过将MABI纳米晶体的胶体溶液喷雾和涂覆到在不同温度下在热板上加热的基板上来制备。我们开发了一种将MABI纳米晶喷涂到加热衬底上的方法。通过将MABI纳米晶体的胶体溶液喷涂到在各种温度下在热板上加热的基底上来制备器件。我们采用了基于我们先前在钙钛矿太阳能电池上的工作的太阳能电池结构，并且器件结构如下：玻璃/铟掺杂的氧化锡/致密的TiO 2/介孔TiO 2/MABI纳米晶体/螺MeO 2/Au。然后使用太阳能模拟器和外部量子效率光谱仪对太阳能电池器件进行表征。典型的钙钛矿器件基于MAPbI 3和类似的混合物，当这些材料降解时，它们通常形成PbI 2，这是一种宽带隙绝缘体。然而，MABI的相变导致形成BiI 3，其具有约1.7 eV的带隙，因此更有利于PV应用。

In this fiscal year we will develop a method to spray-coat methylammonium bismuth iodide (MABI) nanocrystals onto heated substrates and integrate them to the single junction prototype solar cell devices. Solar cells will be prepared by combination of spray and coating the colloidal solution of MABI nanocrystals onto a substrate heated on a hotplate at various temperatures. The solar cell stability and performance will be characterized.We have developed a method to spray-coat MABI nanocrystals onto heated substrates. Devices were prepared by spray coating the colloidal solution of MABI nanocrystals onto a substrate heated on a hotplate at various temperatures. We employed a solar cell structure based on our previous works on perovskite solar cells and the device structure was as follows: Glass/Indium-doped Tin Oxide/Compact TiO2/mesoporous TiO2/MABI nanocrystals/spiro-MeOTAD/Au. The solar cell devices were then characterized using a solar simulator and external quantum efficiency spectrometer. Typical perovskite devices are based on MAPbI3 and similar concoctions, and when these materials degrade they generally form PbI2, which is a wide bandgap insulator. However, the phase change of MABI leads to the formation of BiI3 which has a bandgap of ~1.7 eV and is therefore more favourable for PV applications.