In widely studied organic-inorganic hybrid perovskites,the organic component tends to volatilize and decompose under high temperatures,oxygen,and humidity,which adversely affects the performance and longevity of the a...In widely studied organic-inorganic hybrid perovskites,the organic component tends to volatilize and decompose under high temperatures,oxygen,and humidity,which adversely affects the performance and longevity of the associated solar cells.In contrast,all-inorganic perovskites demonstrate superior stability under these conditions and offer photoelectric properties comparable to those of their hybrid counterparts.The potential of tandem solar cells(TSCs)made from all-inorganic perovskites is especially promising.This review is the first to address recent advancements in TSCs that use all-inorganic perovskites and crystalline silicon(c-Si),both domestically and internationally.This work provides a systematic and thorough analysis of the current challenges faced by these systems and proposes rational solutions.Additionally,we elucidate the regulatory mechanisms of all-inorganic perovskites and their TSCs when combined with c-Si,summarizing the corresponding patterns.Finally,we outline future research directions for all-inorganic perovskites and their TSCs with c-Si.This work offers valuable insights and references for the continued advancement of perovskitebased TSCs.展开更多
Nanostructures of silicon are gradually becoming hot candidate due to outstanding capability for trapping light and improving conversion efficiency of solar cell. In this paper, silicon nanowires（SiNWs） and silicon ...Nanostructures of silicon are gradually becoming hot candidate due to outstanding capability for trapping light and improving conversion efficiency of solar cell. In this paper, silicon nanowires（SiNWs） and silicon inverted pyramid arrays（SiIPs） were introduced on surface of Gr-Si solar cell through silver and copper-catalyzed chemical etching, respectively. The effects of SiNWs and SiIPs on carrier lifetime, optical properties and efficiency of Gr-SiNWs and Gr-SiIPs solar cells were systematically analyzed. The results show that the inverted pyramid arrays have more excellent ability for balancing antireflectance loss and surface area enlargement. The power conversion efficiency（PCE） and carrier lifetime of Gr-SiIPs devices respectively increase by 62% and 34% by comparing with that of Gr-SiNWs solar cells. Finally, the Gr-SiIPs cell with PCE of 5.63% was successfully achieved through nitric acid doping. This work proposes a new strategy to introduce the inverted pyramid arrays for improving the performance of Gr-Si solar cells.展开更多
基金the National Natural Science Foundation of China(Grant Nos.52164050 and 51762043)Major Science and Technology Project of Yunnan Province(Grant No.202202AB080010).
文摘In widely studied organic-inorganic hybrid perovskites,the organic component tends to volatilize and decompose under high temperatures,oxygen,and humidity,which adversely affects the performance and longevity of the associated solar cells.In contrast,all-inorganic perovskites demonstrate superior stability under these conditions and offer photoelectric properties comparable to those of their hybrid counterparts.The potential of tandem solar cells(TSCs)made from all-inorganic perovskites is especially promising.This review is the first to address recent advancements in TSCs that use all-inorganic perovskites and crystalline silicon(c-Si),both domestically and internationally.This work provides a systematic and thorough analysis of the current challenges faced by these systems and proposes rational solutions.Additionally,we elucidate the regulatory mechanisms of all-inorganic perovskites and their TSCs when combined with c-Si,summarizing the corresponding patterns.Finally,we outline future research directions for all-inorganic perovskites and their TSCs with c-Si.This work offers valuable insights and references for the continued advancement of perovskitebased TSCs.
基金support of this work from the NSFC (Nos. 51504117, 61764009 and 51762043)Yunnan Applied Basic Research Project (No. Y0120150138)Research Fund of Yunnan Province Collaborative Innovation Center (No. 2014XTZS009)
文摘Nanostructures of silicon are gradually becoming hot candidate due to outstanding capability for trapping light and improving conversion efficiency of solar cell. In this paper, silicon nanowires（SiNWs） and silicon inverted pyramid arrays（SiIPs） were introduced on surface of Gr-Si solar cell through silver and copper-catalyzed chemical etching, respectively. The effects of SiNWs and SiIPs on carrier lifetime, optical properties and efficiency of Gr-SiNWs and Gr-SiIPs solar cells were systematically analyzed. The results show that the inverted pyramid arrays have more excellent ability for balancing antireflectance loss and surface area enlargement. The power conversion efficiency（PCE） and carrier lifetime of Gr-SiIPs devices respectively increase by 62% and 34% by comparing with that of Gr-SiNWs solar cells. Finally, the Gr-SiIPs cell with PCE of 5.63% was successfully achieved through nitric acid doping. This work proposes a new strategy to introduce the inverted pyramid arrays for improving the performance of Gr-Si solar cells.
