Journal ArticleDOI
Comparative study of electroluminescence from Cu(In,Ga)Se2 and Si solar cells
TLDR
In this paper, the external quantum efficiency of polycrystalline ZnO/CdS/Cu(In,Ga)Se 2 heterojunction solar cells is compared to that of poly-crystallin silicon cells, and the reciprocity between the external (photovoltaic) quantum efficiency and the electroluminescent emission of both devices is fulfilled.About:
This article is published in Thin Solid Films.The article was published on 2007-05-31. It has received 101 citations till now. The article focuses on the topics: Solar cell & Electroluminescence.read more
Citations
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Journal ArticleDOI
Reciprocity relation between photovoltaic quantum efficiency and electroluminescent emission of solar cells
TL;DR: In this article, the spectral and angular dependences of the electroluminescence of solar cells and light emitting diodes were analyzed and a rigorous proof for a reciprocity theorem was given.
Journal ArticleDOI
Understanding the physical properties of hybrid perovskites for photovoltaic applications
TL;DR: In this paper, a review summarizes advances in understanding the unique physical properties of hybrid perovskites that enable the fabrication of high-efficiency solar cells with high open-circuit voltages, which is crucial for their further development towards commercialization.
Journal ArticleDOI
Quantifying Losses in Open-Circuit Voltage in Solution-Processable Solar Cells
Jizhong Yao,Thomas Kirchartz,Thomas Kirchartz,Michelle S. Vezie,Mark A. Faist,Wei Gong,Wei Gong,Zhicai He,Hongbin Wu,Joel Troughton,Trystan Watson,Daniel Bryant,Jenny Nelson +12 more
TL;DR: The reciprocity relation between light absorption and emission is used to explore theoretical and practical performance limits for emerging technologies based on organics and perovskites, and compare them to state-of-the-art systems based on GaAs, c-Si, and CIGS.
Journal ArticleDOI
Optical Gaps of Organic Solar Cells as a Reference for Comparing Voltage Losses
Yuming Wang,Deping Qian,Yong Cui,Huotian Zhang,Jianhui Hou,Koen Vandewal,Thomas Kirchartz,Thomas Kirchartz,Feng Gao +8 more
TL;DR: The voltage loss, determined by the difference between the optical gap (E-g) and the open-circuit voltage (V-OC), is one of the most important parameters determining the performance of organic sola.
Journal ArticleDOI
Competition between the charge transfer state and the singlet states of donor or acceptor limiting the efficiency in polymer:fullerene solar cells.
Mark A. Faist,Thomas Kirchartz,Wei Gong,Raja Shahid Ashraf,Iain McCulloch,John C. de Mello,Nicholas J. Ekins-Daukes,Donal D. C. Bradley,Jenny Nelson +8 more
TL;DR: It is concluded that the open circuit voltage V(OC) is limited by the smaller bandgap of the two blend components, derived from the losses of the studied materials.
References
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Journal ArticleDOI
Detailed Balance Limit of Efficiency of p‐n Junction Solar Cells
TL;DR: In this article, an upper theoretical limit for the efficiency of p−n junction solar energy converters, called the detailed balance limit of efficiency, has been calculated for an ideal case in which the only recombination mechanism of holeelectron pairs is radiative as required by the principle of detailed balance.
Electronic properties of doped semiconductors
Boris I Shklovskii,A. L. Efros +1 more
TL;DR: In the last fifteen years, there has been a noticeable shift towards impure semiconductors -a shift which came about because it is precisely the impurities that are essential to a number of major semiconductor devices.
Book
Solar Cells: Operating Principles, Technology, and System Applications
TL;DR: In this paper, the solar source of light energy is described and quantified, along with a review of semiconductor properties and the generation, recombination, and the basic equations of photovoltaic device physics.
Journal ArticleDOI
High-efficiency cuinxga1-xse2 solar cells made from (inx,ga1-x)2se3 precursor films
Andrew M. Gabor,John R. Tuttle,David S. Albin,Miguel A. Contreras,Rommel Noufi,Allen M. Hermann +5 more
TL;DR: In this paper, Ga and Se were coevaporated to form precursor films of (Inx,Ga1−x)2Se3, which were then converted to CuInxGa 1−xSe2 by exposure to a flux of Cu and Se. The final films were smooth, with tightly packed grains, and had a graded Ga content as a function of film depth.
Journal ArticleDOI
Efficient silicon light-emitting diodes
TL;DR: A large increase in silicon light-emitting diode power conversion efficiency is reported to values above 1% near room temperature—close to the values of representative direct bandgap emitters of a little more than a decade ago.