Efficient Carbon-Based CsPbBr3 Inorganic Perovskite Solar Cells by Using Cu-Phthalocyanine as Hole Transport Material

• DOI: 10.1007/s40820-018-0187-3
• Publication Date: 2018-01-16T03:54:20Z
• Authors: Zhiyong Liu; Bo Sun; Xingyue Liu; Jinghui Han; Haibo Ye; Tielin Shi; Zirong Tang; Guanglan Liao
• Keywords: Thermal Stability

Metal halide perovskite solar cells (PSCs) have attracted extensive research interest for next-generation solution-processed photovoltaic devices because of their high solar-to-electric power conversion efficiency (PCE) and low fabrication cost. Although the world's best PSC successfully achieves a considerable PCE over 20% within very limited timeframe after intensive efforts, stability, cost, up-scaling PSCs still remain issues. Recently, inorganic material, CsPbBr3, is emerging as promising photo-sensitizer with excellent durability thermal but embarrassing. In this work, we intend to address these issues by exploiting CsPbBr3 light absorber, accompanied using Cu-phthalocyanine (CuPc) hole transport material (HTM) carbon counter electrode. The optimal device acquires decent 6.21%, 60% higher than those HTM-free devices. systematic characterization analysis reveal more effective charge transfer process suppressed recombination in introducing CuPc layer. More importantly, our exhibit an outstanding making it rather meaningful future application PSCs.