Energy capture with optimized photovoltaic cells under low lighting conditions

被引：4

作者：

Ruehle, Karola ^{[1
]}

Reindl, Leonhard M. ^{[1
]}

Kasemann, Martin ^{[1
]}

机构：

[1] Univ Freiburg, Dept Microsyst Engn, D-79110 Freiburg, Germany

来源：

2012 IEEE INTERNATIONAL CONFERENCE ON GREEN COMPUTING AND COMMUNICATIONS, CONFERENCE ON INTERNET OF THINGS, AND CONFERENCE ON CYBER, PHYSICAL AND SOCIAL COMPUTING (GREENCOM 2012) | 2012年

关键词：

energy harvesting; indoor photovoltaics; low-lighting conditions; photovoltaic cells; PERFORMANCE;

D O I：

10.1109/GreenCom.2012.97

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

The optimization of photovoltaic devices for versatile conditions is necessary to improve the energy capture for indoor applications, such as self sufficient sensors. However, the design rules of standard outdoor solar cells are not applicable for cells which are used indoors due to differing conditions from the standard testing conditions (STC). We will discuss the substantial influences on cell efficiencies and their impact on the design of photovoltaic cells with indoor applications. We show that in order to reduce losses due to recombination the influence of impurity recombination ourweighs the Auger recombination. Therefore, good quality material and a reduction of the doping level are favorable. The dopant reduction implies an improvement of the saturation current density J(01) and is realizable because the series resistance R-s has no influence on the efficiency at indoor intensities. The crucial parameter is the shunting resistance R-sh and it has to have a value of at least 50 Omega kcm(2).

引用

页码：628 / 630

页数：3

共 8 条

[1] Site dependence of the energy collection of PV modules [J].

Bucher, K .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 1997, 47 (1-4) :85-94

[2] A Multiharvested Self-Powered System in a Low-Voltage Low-Power Technology [J].

Colomer-Farrarons, J. ;

Miribel-Catala, P. ;

Saiz-Vela, A. ;

Samitier, J. .

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 2011, 58 (09) :4250-4263

[3]

Gao Yi, 2009, 2009 2nd International Conference on Power Electronics and Intelligent Transportation System (PEITS 2009), P203, DOI 10.1109/PEITS.2009.5406835

[4] Effects of solar irradiation conditions on the outdoor performance of photovoltaic modules [J].

Parretta, A ;

Sarno, A ;

Vicari, LRM .

OPTICS COMMUNICATIONS, 1998, 153 (1-3) :153-163

[5] Is AM1.5 applicable in practice? Modelling eight photovoltaic materials with respect to light intensity and two spectra [J].

Randall, JF ;

Jacot, J .

RENEWABLE ENERGY, 2003, 28 (12) :1851-1864

[6] Passivation Layers for Indoor Solar Cells at Low Irradiation Intensities [J].

Ruehle, K. ;

Rauer, M. ;

Ruediger, M. ;

Giesecke, J. ;

Niewelt, T. ;

Schmiga, C. ;

Glunz, S. W. ;

Kasemann, M. .

PROCEEDINGS OF THE 2ND INTERNATIONAL CONFERENCE ON CRYSTALLINE SILICON PHOTOVOLTAICS (SILICONPV 2012), 2012, 27 :406-411

[7]

Ruhle K., 2012, Int. Multi Conf. Syst. Signal Devices, V20-23, P1, DOI DOI 10.1109/SSD.2012.6197998

[8] On the testing, characterization, and evaluation of PV inverters and dynamic MPPT performance under real varying operating conditions [J].

Sanchis, Pablo ;

Lopez, Jesus ;

Ursua, Alfredo ;

Gubia, Eugenio ;

Marroyo, Luis .

PROGRESS IN PHOTOVOLTAICS, 2007, 15 (06) :541-556

← 1 →