Shichong An

Nankai University

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Ying Zhao

Jiangsu Normal University

Qian Huang

Nankai University

Xiaodan Zhang

Nankai University

Yi Ding

Nankai University

Changchun Wei

Criminal Investigation Police University of China

Guofu Hou

Nankai University

Xinliang Chen

Nankai University

Fuhua Hou

Inner Mongolia University

Yuelong Li

Nankai University

Qianshang Ren

Collaborative Innovation Center of Chemical Science and Engineering Tianjin

Cooperative Institutions

Nankai University

Collaborative Innovation Center of Chemical Science and Engineering Tianjin

Ministry of Education of the People's Republic of China

Tianjin University of Technology

Unité Matériaux et Transformations

Chinese Academy of Sciences

Zhengzhou University

Zhejiang University

Delft University of Technology

Southwest University

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Photonic enhanced thin-film solar cells with conformal nanostructure

Solar Energy (2018)

Yupeng Tong Qian Huang Shichong An Qianshang Ren Li Zhang

10.1016/j.solener.2018.04.007

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Citations (7)

Inverted pyramidally-textured PDMS antireflective foils for perovskite/silicon tandem solar cells with flat top cell

Nano Energy (2018)

Fuhua Hou Can Han Olindo Isabella Lingling Yan Biao Shi

Anti-reflective coating

Tandem

Perovskite solar cell

10.1016/j.nanoen.2018.11.018

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Citations (92)

Cerium-doped indium oxide transparent electrode for semi-transparent perovskite and perovskite/silicon tandem solar cells

Solar Energy (2019)

Shichong An Peirun Chen Fuhua Hou Qi Wang Heng Pan

Tandem

Perovskite solar cell

10.1016/j.solener.2019.12.040

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Citations (42)

Solvent Engineering to Balance Light Absorbance and Transmittance in Perovskite for Tandem Solar Cells

Solar RRL (2018)

Shijie Zhu Fuhua Hou Wei Huang Xin Yao Biao Shi

Owing to their rational distribution and adequate use of the solar spectrum and a high open‐circuit voltage, perovskite/silicon‐heterojunction (SHJ) tandem solar cells can exceed the theoretical limit of efficiency for crystalline silicon solar cells. To improve the performance of perovskite/SHJ tandem solar cells, the distribution of the solar spectrum and current matching between sub‐cells must be examined and optimized. This study employs mixed perovskite as the top cell, which is prepared with pure N, N ‐dimethyl formamide (DMF), pure dimethyl sulfoxide (DMSO), and mixtures of these components in different volume ratios. The effect of different solvents on surface structure and the photoelectric properties of FACs perovskite materials are systematically examined. When the volume fraction of DMSO is 40%, a smooth, well passivated, high‐quality perovskite film is obtained. Most importantly, light absorbance and transmittance are balanced by applying solvent engineering to optimize perovskite films in the tandem devices. This method can be further extended to a more complicated FAMACs perovskite/SHJ by delivering a power conversion efficiency of 22.80%. This study concludes that solvent engineering is an effective and simple method for modifying the performance of monolithic perovskite/silicon tandem devices.

Perovskite solar cell

Tandem

Absorbance

10.1002/solr.201800176

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Citations (49)

Acetate Anion Assisted Crystal Orientation Reconstruction in Organic–Inorganic Lead Halide Perovskite

ACS Applied Energy Materials (2018)

Lin Liu Zeguo Tang Chenguang Xin Shijie Zhu Shichong An

The crystalline reconstruction along (112)/(200) planes rather than (110)/(002) planes of methylammonium lead iodide (MAPbI3) is realized via an alternative one-step fabrication protocol that does not use the antisolvent dripping process, where methylammonium acetate (MAAc) is incorporated into the precursor solution. It is disclosed that the MAAc additive causes the modulation of the initial orientation of PbI2 from (001) to (101) via formation of the intermediate adduct of PbI2·MAAc, and the sequential deconstruction-reconstruction procedures result in dense perovskite films composed of large grains along (112)/(200) planes, differing from the needle-like crystallites along (110)/(002) planes constructed without MAAc assistance. The resultant films present superior optoelectronic properties, and corresponding solar cells with efficiency as high as 18.91% have been achieved at the MAAc content of 11%. Furthermore, anisotropic properties have been observed with respect to different crystal orientation, which also plays a crucial role in device performance.

Lead acetate

Crystal (programming language)

10.1021/acsaem.8b00400

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Citations (26)

Monolithic Perovskite/Silicon-Heterojunction Tandem Solar Cells with Open-Circuit Voltage of over 1.8 V

ACS Applied Energy Materials (2019)

Fuhua Hou Lingling Yan Biao Shi Junfan Chen Shijie Zhu

Perovskite/silicon tandem solar cells with high theoretical efficiency, low cost, and the potential for simple mass production have received significant attention. To maintain the current matching, increasing the open-circuit voltage (VOC) of the top and bottom subcells is an effective route to enhance the efficiency of tandem solar cells (TSCs). In this paper, we focus on a strategy for increasing the VOC and simultaneously maintaining a high efficiency of over 20%. Perovskite thin films with added Cs in traditional FAMA cations have shown a large grain, smooth surface morphology, wider band gap, and reduced defects, which together bring about a TSC VOC of 1.78 V. In addition, the high minority carrier lifetime (τeff) of bottom silicon solar cells resulting from the good passivation of a-Si:H/c-Si interface enhance the VOC values to as high as 1.83 V, which is the highest value for perovskite/silicon TSCs.

Tandem

Passivation

Open-circuit voltage

10.1021/acsaem.8b00926

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Citations (54)