10-04-2014 дата публикации
Номер: US20140096818A1
A solar cell has a condenser lens and a solar cell element, the solar cell element including an n-type InGaAs layer, an n-type GaAs layer, an n-type InGaP layer, the first InGaAs peripheral part having a thickness (d2), and a width (w2), the second InGaAs peripheral part having a thickness (d3), and a width (w3), the first GaAs peripheral part having a thickness (d5), and a width (w4), the second GaAs peripheral part a thickness (d6), and a width (w5), the first InGaP peripheral part having a thickness (d8), and a width (w6), the second InGaP peripheral part having a thickness (d9), and a width (w7), the following inequation set being satisfied: 1 nm≦(d2, d3, d5, and d6)≦4 nm, 1 nm≦(d8 and d9)≦5 nm, 100 nm≦(w2, w3, w4, w5, w6, and w7), the InGaAs center part having a thickness (w1), a window layer has a range S irradiated by sunlight having a width (w8); w8≦w1. 1. A method for generating an electric power using a solar cell , the method comprising:{'b': 101', '102, '(a) preparing the solar cell comprising a condenser lens and a solar cell element ;'}{'b': 102', '104', '103', '106', '105', '108', '107', '110', '111', '109', '120', '121, 'wherein the solar cell element comprises an n-type InGaAs layer , a p-type InGaAs layer , an n-type GaAs layer , a p-type GaAs layer , an n-type InGaP layer , a p-type InGaP layer , a first tunnel junction layer , a second tunnel junction layer , a window layer , an n-side electrode , and a p-side electrode ;'}{'b': '103', 'Z direction is a normal line direction of the p-type InGaAs layer ;'}X direction is perpendicular to the Z direction;{'b': 104', '103', '110', '106', '105', '111', '108', '107', '109, 'the n-type InGaAs layer , the p-type InGaAs layer , the first tunnel junction layer , the n-type GaAs layer , the p-type GaAs layer , the second tunnel junction layer , the n-type InGaP layer , the p-type InGaP layer , and the window layer are stacked in this order along the Z direction;'}{'b': 120', '104, 'the n-side electrode is ...
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