Nanocrystalline‐silicon hole contact layers enabling efficiency improvement of silicon heterojunction solar cells: Impact of nanostructure evolution on solar cell performance

Author(s):  
Hiroshi Umishio ◽  
Hitoshi Sai ◽  
Takashi Koida ◽  
Takuya Matsui
2014 ◽  
Vol 2 (45) ◽  
pp. 19282-19289 ◽  
Author(s):  
Zhenggang Huang ◽  
Elisa Collado Fregoso ◽  
Stoichko Dimitrov ◽  
Pabitra Shakya Tuladhar ◽  
Ying Woan Soon ◽  
...  

The performance of bulk heterojunction solar cells based on a novel donor polymer DPP-TT-T was optimised by tuning molecular weight and thermal annealing.


2017 ◽  
Vol 56 (5S1) ◽  
pp. 05DB03 ◽  
Author(s):  
Suguru Yachi ◽  
Ryota Takabe ◽  
Kaoru Toko ◽  
Takashi Suemasu

2016 ◽  
Vol 4 (47) ◽  
pp. 18383-18391 ◽  
Author(s):  
Hyo-Sang Lee ◽  
Hyungju Ahn ◽  
Jea Woong Jo ◽  
BongSoo Kim ◽  
Hae Jung Son

The combination of solvent and polymer additives synergistically enhances solar cell performance and the stability of small molecule bulk heterojunction solar cells.


2008 ◽  
Vol 1066 ◽  
Author(s):  
Baojie Yan ◽  
Guozhen Yue ◽  
Yanfa Yan ◽  
Chun-Sheng Jiang ◽  
Charles W. Teplin ◽  
...  

ABSTRACTWe present a systematic study on the correlation of hydrogen dilution profiles to structural properties materials and solar cell performance in nc-Si:H solar cells. We deposited nc-Si:H single-junction solar cells using a modified very high frequency (VHF) glow discharge technique on stainless steel substrates with various profiles of hydrogen dilution in the gas mixture during deposition. The material properties were characterized using Raman spectroscopy, X-TEM, AFM, and C-AFM. The solar cell performance correlates well with the material structures. Three major conclusions are made based on the characterization results. First, the optimized nc-Si:H material does not show an incubation layer, indicating that the seeding layer is well optimized and works as per design. Second, the nanocrystalline evolution is well controlled by hydrogen dilution profiling in which the hydrogen dilution ratio is dynamically reduced during the intrinsic layer deposition. Third, the best nc-Si:H single-junction solar cell was made using a proper hydrogen dilution profile, which caused a nanocrystalline distribution close to uniform throughout the thickness, but with a slightly inverse nanocrystalline evolution. We have used the optimized hydrogen dilution profiling and improved the nc-Si:H solar cell performance significantly. As a result, we have achieved an initial active-area cell efficiency of 9.2% with a nc-Si:H single-junction structure, and 15.4% with an a-Si:H/a-SiGe:H/nc-Si:H triple-junction solar cell structure.


RSC Advances ◽  
2017 ◽  
Vol 7 (74) ◽  
pp. 46874-46880 ◽  
Author(s):  
Senku Tanaka ◽  
Siti Khadijah Binti Rosli ◽  
Ken Takada ◽  
Norito Taniai ◽  
Takuya Yoshitomi ◽  
...  

Through partial bromination of P3HT, we examined the effects of π-electron delocalization on the solar cell performance. A higher Br concentration restricts first intra- and then inter-chain delocalization, disrupting charge transport channels.


2016 ◽  
Vol 4 (32) ◽  
pp. 12535-12542 ◽  
Author(s):  
Weidong Zhu ◽  
Chunxiong Bao ◽  
Bihu Lv ◽  
Faming Li ◽  
Yong Yi ◽  
...  

A homogeneous cap-mediated crystallization strategy can be used to realize high-quality organolead triiodide perovskite (OTP) films with greatly enhanced solar cell performance.


Author(s):  
Hung-Cheng Chen ◽  
Jie-Min Lan ◽  
Hsiang-Lin Hsu ◽  
Chia-Wei Li ◽  
Tien-Shou Shieh ◽  
...  

Three different benzylammonium halide (Cl, Br, and I) salts were investigated to elucidate their effects as additives on MAPbI3 perovskite surface morphology, crystal structure, optical properties, and solar cell performance and stability.


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