Stretchable and colorless freestanding microwire arrays for transparent solar cells with flexibility.
Sung Bum Kang,Ji-Hwan Kim,Myeong Hoon Jeong,Amit Sanger,Chan Ul Kim,Chil-Min Kim,Kyoung Jin Choi +6 more
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TLDR
A flexible, color-neutral, and high-efficiency transparent solar cell based on a freestanding form of n-silicon microwires embedded in a transparent polymer matrix is demonstrated and the stretchable and transparent platform in this study is promising for future TSCs.Abstract:
Transparent solar cells (TSCs) are emerging devices that combine the advantages of visible transparency and light-to-electricity conversion. Currently, existing TSCs are based predominantly on organics, dyes, and perovskites; however, the rigidity and color-tinted transparent nature of those devices strongly limit the utility of the resulting TSCs for real-world applications. Here, we demonstrate a flexible, color-neutral, and high-efficiency TSC based on a freestanding form of n-silicon microwires (SiMWs). Flat-tip SiMWs with controllable spacing are fabricated via deep-reactive ion etching and embedded in a freestanding transparent polymer matrix. The light transmittance can be tuned from ~10 to 55% by adjusting the spacing between the microwires. For TSCs, a heterojunction is formed with a p-type polymer in the top portion of the n-type flat-tip SiMWs. Ohmic contact with an indium-doped ZnO film occurs at the bottom, and the side surface has an Al2O3 passivation layer. Furthermore, slanted-tip SiMWs are developed by a novel solvent-assisted wet etching method to manipulate light absorption. Finite-difference time-domain simulation revealed that the reflected light from slanted-tip SiMWs helps light-matter interactions in adjacent microwires. The TSC based on the slanted-tip SiMWs demonstrates 8% efficiency at a visible transparency of 10% with flexibility. This efficiency is the highest among Si-based TSCs and comparable with that of state-of-the-art neutral-color TSCs based on organic-inorganic hybrid perovskite and organics. Moreover, unlike others, the stretchable and transparent platform in this study is promising for future TSCs.read more
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Perovskite Single-Crystal Microwire-Array Photodetectors with Performance Stability beyond 1 Year.
Shun-Xin Li,Yi-Shi Xu,Chenglong Li,Qi Guo,Gong Wang,Hong Xia,Hong-Hua Fang,Liang Shen,Hong-Bo Sun,Hong-Bo Sun +9 more
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Wearable multi-sensing double-chain thermoelectric generator.
TL;DR: A team from University of Electronic Science and Technology of China reports a thermoelectric-based device that enables energy generation and sensing for health monitoring and prepares n-type and p-type inorganic films onto a flexible polymer substrate, with their device being able to generate a voltage of up to 151 mV driven by a thermOElectric effect.
References
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Journal ArticleDOI
Organometal Halide Perovskites as Visible-Light Sensitizers for Photovoltaic Cells
TL;DR: Two organolead halide perovskite nanocrystals were found to efficiently sensitize TiO(2) for visible-light conversion in photoelectrochemical cells, which exhibit strong band-gap absorptions as semiconductors.
Journal ArticleDOI
Efficient Hybrid Solar Cells Based on Meso-Superstructured Organometal Halide Perovskites
Michael M. Lee,Joël Teuscher,Tsutomu Miyasaka,Takurou N. Murakami,Takurou N. Murakami,Henry J. Snaith +5 more
TL;DR: A low-cost, solution-processable solar cell, based on a highly crystalline perovskite absorber with intense visible to near-infrared absorptivity, that has a power conversion efficiency of 10.9% in a single-junction device under simulated full sunlight is reported.
Journal ArticleDOI
Solvent engineering for high-performance inorganic–organic hybrid perovskite solar cells
TL;DR: A bilayer architecture comprising the key features of mesoscopic and planar structures obtained by a fully solution-based process is reported, providing important progress towards the understanding of the role of solution-processing in the realization of low-cost and highly efficient perovskite solar cells.
Journal ArticleDOI
Compositional engineering of perovskite materials for high-performance solar cells
Nam Joong Jeon,Jun Hong Noh,Woon Seok Yang,Young Chan Kim,Seungchan Ryu,Jangwon Seo,Sang Il Seok +6 more
TL;DR: This work combines the promising—but relatively unstable formamidinium lead iodide with FAPbI3 with methylammonium lead bromide as the light-harvesting unit in a bilayer solar-cell architecture and improves the power conversion efficiency of the solar cell to more than 18 per cent under a standard illumination.
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Light Trapping in Silicon Nanowire Solar Cells
Erik C. Garnett,Peidong Yang +1 more
TL;DR: It is demonstrated that ordered arrays of silicon nanowires increase the path length of incident solar radiation by up to a factor of 73, which is above the randomized scattering (Lambertian) limit and is superior to other light-trapping methods.