The Shockley-Queisser(S-Q)model sets a theoretical limit on the power conversion efficiency(PCE)of single-junction solar cells at around 33%.Recently,a PCE of 50%-60%was achieved for the first time in n-type singlejun...The Shockley-Queisser(S-Q)model sets a theoretical limit on the power conversion efficiency(PCE)of single-junction solar cells at around 33%.Recently,a PCE of 50%-60%was achieved for the first time in n-type singlejunction Si solar cells by inhibiting light conversion to heat at low temperatures.Understanding these new observations opens tremendous opportunities for designing solar cells with even higher PCE to provide efficient and powerful energy sources for cryogenic devices and outer and deep space explorations.展开更多
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
An altemative way is proposed to interpret I-V characteristics of GalnP single-junction solar cells by position-dependent leakage ofphotocurrent. With this approach, the I-V curves of solar cells under non-uniform ill...An altemative way is proposed to interpret I-V characteristics of GalnP single-junction solar cells by position-dependent leakage ofphotocurrent. With this approach, the I-V curves of solar cells under non-uniform illumination are well analyzed. The effective spreading resistance is also extracted to understand the dynamic behavior of between the open-circuit voltage and short-circuit current points. The conditions under which the one- diode model will fail are addressed in detail. These analyses are also applicable for a characterization of the I-V curves with lateral voltage distribution under uniform illumination.展开更多
基金support from the National Natural Science Foundation of China(Grant Nos.52371197,51671139).
文摘The Shockley-Queisser(S-Q)model sets a theoretical limit on the power conversion efficiency(PCE)of single-junction solar cells at around 33%.Recently,a PCE of 50%-60%was achieved for the first time in n-type singlejunction Si solar cells by inhibiting light conversion to heat at low temperatures.Understanding these new observations opens tremendous opportunities for designing solar cells with even higher PCE to provide efficient and powerful energy sources for cryogenic devices and outer and deep space explorations.
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Project supported by the Union Innovation Projects of Jiangsu Province(No.BY2011182)CAS,the National Basic Research Program(No.2012CB619305)the National Natural Science Foundation of China(Nos.51272275,51302305,61376065)
文摘An altemative way is proposed to interpret I-V characteristics of GalnP single-junction solar cells by position-dependent leakage ofphotocurrent. With this approach, the I-V curves of solar cells under non-uniform illumination are well analyzed. The effective spreading resistance is also extracted to understand the dynamic behavior of between the open-circuit voltage and short-circuit current points. The conditions under which the one- diode model will fail are addressed in detail. These analyses are also applicable for a characterization of the I-V curves with lateral voltage distribution under uniform illumination.
