Those samples treated show a major peak at 2 . 02ev and a minor one at 2 . 13ev at a given low temperature and experiences a blue - peak - shift at room temperature . a defect model is abstract suggested to account for the pl of sintered psc 经氧化研磨或研磨的样品在低温下有较高的发光强度，发光主峰位于2 . 02ev ，在2 . 13ev有一弱峰，室温下发光峰发生蓝移。
